EP1660781A1 - Ball stud - Google Patents
Ball studInfo
- Publication number
- EP1660781A1 EP1660781A1 EP04762707A EP04762707A EP1660781A1 EP 1660781 A1 EP1660781 A1 EP 1660781A1 EP 04762707 A EP04762707 A EP 04762707A EP 04762707 A EP04762707 A EP 04762707A EP 1660781 A1 EP1660781 A1 EP 1660781A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- magnet
- ball
- ball pin
- recess
- pin according
- 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- Withdrawn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
- 239000000696 magnetic material Substances 0.000 claims abstract description 22
- 239000004033 plastic Substances 0.000 claims description 37
- 229920003023 plastic Polymers 0.000 claims description 37
- 239000003302 ferromagnetic material Substances 0.000 claims description 8
- 229910000906 Bronze Inorganic materials 0.000 claims description 5
- 239000010974 bronze Substances 0.000 claims description 5
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000005294 ferromagnetic effect Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000005291 magnetic effect Effects 0.000 description 25
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 238000001746 injection moulding Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 239000004952 Polyamide Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 229920002647 polyamide Polymers 0.000 description 6
- 229930040373 Paraformaldehyde Natural products 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- 229920006324 polyoxymethylene Polymers 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 210000002105 tongue Anatomy 0.000 description 4
- 238000003848 UV Light-Curing Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- PZBPKYOVPCNPJY-UHFFFAOYSA-N 1-[2-(allyloxy)-2-(2,4-dichlorophenyl)ethyl]imidazole Chemical compound ClC1=CC(Cl)=CC=C1C(OCC=C)CN1C=NC=C1 PZBPKYOVPCNPJY-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 polyoxymethylene Polymers 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005382 thermal cycling Methods 0.000 description 1
- 230000007704 transition Effects 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0604—Construction of the male part
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
- F16C11/0623—Construction or details of the socket member
- F16C11/0642—Special features of the plug or cover on the blind end of the socket
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
- F16C11/0623—Construction or details of the socket member
- F16C11/0647—Special features relating to adjustment for wear or play; Wear indicators
-
- 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
- B60G2204/10—Mounting of suspension elements
- B60G2204/11—Mounting of sensors thereon
-
- 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
- B60G2204/416—Ball or spherical joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2401/00—Indexing codes relating to the type of sensors based on the principle of their operation
- B60G2401/17—Magnetic/Electromagnetic
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2233/00—Monitoring condition, e.g. temperature, load, vibration
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32606—Pivoted
- Y10T403/32631—Universal ball and socket
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32606—Pivoted
- Y10T403/32631—Universal ball and socket
- Y10T403/32672—Swiveled ball parts or seat
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32606—Pivoted
- Y10T403/32631—Universal ball and socket
- Y10T403/32681—Composite ball
- Y10T403/32696—Nonmetallic part
Definitions
- the invention relates to a ball pin of a ball and socket joint for a motor vehicle, with a pin and a joint ball connected to it, wherein a recess with a magnet arranged therein is provided in the ball pin.
- the invention further relates to a ball joint with such a ball pin.
- a ball joint for a motor vehicle is known from EP 0 617 260 AI, a ball head being inserted into a ball socket.
- a permanent magnet is arranged in the ball head and is opposed by a magnetic field-sensitive sensor provided in the region of the ball socket.
- a ball joint for a motor vehicle is known from DE 101 10 738 CI, a ball pin having a pin section and a ball section being received with its ball section rotatably and pivotably in a spherical cap-shaped receptacle provided in a housing section.
- a permanent magnet is arranged in the spherical section and is opposed by a sensor element having two Hall sensor platelets.
- ball studs for motor vehicles are regularly made of a ferromagnetic material, which is the course of the magnetic field generated by the magnet a measurement of this magnetic field by means of a sensor sensitive to a magnetic field.
- the magnetic base it is possible for the magnetic base to take place to a significant extent in the ferromagnetic material and not to ensure that “sufficient field” is available to the magnetic field-sensitive sensor.
- the invention is based on the object of creating a ball stud suitable for series production, in which a magnet is securely mounted. Furthermore, a negative influence on the magnetic field generated by the magnet with regard to a measurement of this magnetic field by means of a magnetic field-sensitive sensor should also be avoided when using a ferromagnetic material for the ball stud.
- the ball pin according to the invention of a ball joint for a motor vehicle has a pin and a joint ball connected to it, a recess with a magnet arranged therein being provided in the ball pin.
- a space is formed between the outer surface of the magnet and the inner wall of the recess, which is filled with a non-magnetic material for fixing the magnet.
- the solution according to the invention can also consist of providing a plurality of recesses or magnets, wherein, for example, a plurality of magnets can also be arranged in a recess.
- the magnet which is in particular in the form of a permanent magnet
- the magnet can be reliably mounted in the ball stud during series production.
- the arrangement of the non-magnetic material around the magnet in the space a negative influence on the magnetic field generated by the magnet with regard to a measurement of this magnetic field by means of a magnetic field-sensitive sensor arranged in particular outside the ball pin is reduced if the ball pin is made of a ferromagnetic material.
- the course of the magnetic field achieved by the non-magnetic material which is more favorable for the magnetic field measurement, enables a more reliable and more precise detection of the position of the magnet by means of this magnetic field measurement. It is also possible to compensate for a different thermal expansion behavior of the magnet and ball stud by a suitable selection of the non-magnetic material in the event of thermal cycling.
- the magnet can be arranged in the recess such that there is no direct contact between the magnet and the ball pin. However, the magnet is preferably in direct contact with the ball stud with one of its end faces, so that the magnet can be mounted more easily in the ball stud. The magnet is then e.g. pushed into the recess until its the
- End face facing ball stud abuts the bottom surface of the recess.
- the assembly of the magnet is thus self-adjusting with respect to the longitudinal axis of the recess. Furthermore, tilting of the magnet is largely excluded. Such tilting could lead to errors in the position determination of the magnet by a magnetic field measurement. Furthermore, the contact results in a
- Magnetic field measurement more favorable course of the magnetic field if the ball stud is made of a ferromagnetic material.
- the ball pin or the joint ball can be made in the region of the recess, but also completely from a ferromagnetic material, preferably from a ferromagnetic steel.
- PA polyamide
- POM polyoxymethylene
- Expansion coefficient steel 0.000016 1 / ° C (1 / K)
- Expansion coefficient aluminum 0.0000238 1 / ° C (1 / K)
- polyamide result e.g. for PA66.
- the magnet can be cylindrical or frustoconical, a cylindrical configuration of the recess having proven to be advantageous.
- the inside diameter of the recess is larger than the maximum outside diameter of the magnet.
- the smaller end face of the magnet in particular faces away from the ball pin.
- This configuration of the magnet has an effect on its magnetic field, so that "more" field is available for a magnetic field-sensitive sensor for detecting the magnetic field.
- the reason for this is the relatively higher energy content compared to a cylindrical magnet with the same magnetic field exit surface, which is associated with the The cone-shaped design thus creates a small magnetic field exit area with a large magnet volume.
- Ease of assembly can be achieved in that the non-magnetic material forms a ring which receives the magnet and which can be glued together with the magnet in the recess.
- This ring is preferably made of aluminum or plastic and in particular forms a separate component.
- self-centering of the ring in the recess by the adhesive is possible, the use of a partially elastic adhesive also ensuring a secure connection in the event that large temperature fluctuations occur.
- Such an adhesive can compensate for the different thermal expansion behavior of the ring and ball stud.
- a UV-curing adhesive can be used as the adhesive if the ring is made of a material which is transparent to UV light. If the ring is made of plastic, the ring can, according to an alternative, also be injected directly into the recess having the magnet.
- the magnet can also be completely embedded in plastic, this plastic being injection-molded onto the magnet in particular by injection molding.
- the body formed by the magnet and the plastic is in particular a separate component and can then be glued and / or pressed into the recess.
- a UV-curing adhesive can also be used here.
- the plastic can also be injected into the recess having the magnet.
- the magnetic material can be in the form of a stamped and bent part in which the magnet is inserted.
- the preferably metallic stamped and bent part is made in particular of spring bronze and can be pressed into the recess together with the magnet. Furthermore, it is possible to make the stamped and bent part partially resilient, so that in the assembled state it is resiliently supported against the inner wall of the recess.
- the magnet itself can also be pressed into the stamped and bent part, the magnet being held non-positively in the stamped and bent part.
- the stamped and bent part is preferably ring-shaped and has two concentric legs and a web connecting them to one another. It is thus possible to arrange the magnet within the inner leg, the outer leg being designed as a spring which is supported against the inner wall of the recess. Due to the spring preload of this spring and the surface roughness of the inner wall of the recess in the ball stud is due to the stamped and bent part and the magnet Formed arrangement held non-positively in the ball pin. It is also possible to embed the inner or smaller leg in a plastic sleeve in which the magnet can also be arranged.
- the outer leg can be divided by free spaces into a plurality of spring tongues which are arranged around the inner leg and which are supported with a spring force against the inner wall of the recess in order to form the non-positive connection.
- the free spaces can also extend into the web.
- a ball joint for a motor vehicle with a ball joint housing and a ball pin which is rotatably and pivotably mounted therein and has a pin and a ball pin connected to it, in which a recess is provided with a magnet arranged therein.
- a recess is provided with a magnet arranged therein.
- an intermediate space is formed between the outer surface of the magnet and the inner wall of the recess, which is filled with a non-magnetic material for fixing the magnet.
- the ball pin of the ball joint according to the invention can be developed in the same way as the ball pin according to the invention.
- FIG. 1 an embodiment of a ball joint according to the invention in a sectional view
- FIG. 2 a schematic sectional view of a first embodiment of the ball pin according to the invention
- FIG. 3 a schematic sectional view of a second embodiment of the ball pin according to the invention
- FIG. 4 a schematic sectional view of a third embodiment of the ball pin according to the invention
- FIG. 5 a schematic sectional view of a fourth embodiment of the ball pin according to the invention.
- FIG. 6 a top view of the embodiment according to FIG. 5,
- FIG. 7 a schematic sectional view of a fifth embodiment of the ball pin according to the invention.
- FIG. 8 a top view of the embodiment according to FIG. 7.
- FIG. 9 a schematic sectional view of a ball pin according to the invention prior to the assembly of the magnet and the non-magnetic material
- Figure 10 is a schematic sectional view of the ball stud according to Figure 9, with an inserted magnet but without a non-magnetic material and
- Figure 1 1 a schematic sectional view of the ball stud according to Fig. 1 before assembly of the magnet and the non-magnetic material.
- FIG. 1 shows a sectional view of an embodiment of the ball joint according to the invention, a ball pin 3 provided with a ball 1 and a pin 2 being rotatably and pivotably mounted in an interior 4 of a ball joint housing 5 with the interposition of a bearing shell 6.
- the ball pin 3 extends with its pin 2 through an opening 7 out of the ball joint housing 5, and is provided with a thread 8 at its end facing away from the ball 1.
- the latter In the area of the ball joint housing 5 facing away from the pin 2, the latter has an assembly opening 7a closed with a cover 9, on the surface of which the joint ball 1 faces a sensor 10 which is sensitive to magnetic fields.
- the joint ball 1 is provided in its area facing the cover 9 with a flat 11, in which a cylindrical recess 12 is formed, into which a permanent magnet 13 is inserted.
- the recess 12 and the permanent magnet 13 extend into the interior of the joint ball 1, an intermediate space 17 filled with a non-magnetic material 16 being formed between the lateral surface 14 of the magnet 13 and the inner wall 15 of the recess 12.
- the magnet 13 lies with its end face 18 facing the ball stud 3 against the bottom surface 19 of the recess 12 and is fixed in the recess 12 via the non-magnetic material 16.
- the magnet 13 protrudes slightly with its end face 20 facing away from the ball stud 3 from the flattened portion 11.
- the ball joint is provided in the usual way with a sealing bellows 21 which is fixed to the ball joint housing 5 by means of clamping rings 22 and which bears sealingly against the pin 2 with a sealing region 23.
- the magnet 13 is arranged in the area of the joint ball 1 facing away from the pin 2, but it is also possible to provide the magnet 13 at another point on the ball pin 3.
- FIG. 2 shows a first embodiment of the ball pin 3 according to the invention, a ring 24 made of plastic being glued together with a magnet 13 into a recess 12 in the ball pin 3 and the magnet 13 with its end face 18 facing the ball pin 3 on the bottom surface 19 of FIG Recess 12 is present.
- the plastic used is permeable to UV light, whereby the adhesive hardens by exposure to UV light, which is particularly advantageous for series production. There is no gap between the ring 24 and the pin 3, so that a possible source of corrosion is excluded.
- FIG. 3 shows a second embodiment of the ball pin 3 according to the invention, a cylindrical magnet 13 being completely embedded in a plastic element 25 produced by the injection molding process.
- the magnet 13 and Plastic element 25 formed body is pressed into a recess 12 of the ball pin 3, the magnet 13 with its end 18 facing the ball pin 3 abutting the bottom surface 19 of the recess 12, so that an overall robust component is created in a simple assembly process. Due to the pressing in, the use of an adhesive can be dispensed with, so that no dripping and drying times of a UV-curing adhesive have to be observed.
- FIG. 4 shows a third embodiment of the ball pin 3 according to the invention, a frustoconical magnet 13 being completely embedded in a plastic element 25 produced by the injection molding process.
- the magnet 13 lies with its end face 18 facing the ball stud 3 against the bottom surface 19 of the recess 12 and tapers from the bottom surface 19 with increasing distance therefrom.
- FIG. 5 shows a fourth embodiment of the ball pin 3 according to the invention, a cylindrical magnet 13 being pressed into a stamped and bent part 26 made of spring bronze.
- the stamped and bent part 26 is ring-shaped and has two concentric legs 27 and 28 which are connected to one another via a web 29.
- the inner leg 27 extends parallel to the lateral surface 14 of the magnet 13 and lies firmly against it, so that the magnet 13 is held in the punched and bent part 26 in a force-locking manner.
- the annular web 29 adjoins and merges into the outer leg 28, which extends along the inner wall 15 of a recess 12 provided in the ball pin 3 and rests resiliently on this inner wall 15.
- the stamped and bent part 26 thus has an approximately U-shaped cross section, the body formed from the stamped and bent part 26 and magnet 13 being held in a force-fitting manner in the recess 12 due to the spring force of the outer leg 28 and the surface roughness of the inner wall 15 and being secured against falling out , Furthermore, the magnet 13 with its end face 18 facing the ball stud 3 bears against the bottom surface 19 of the recess 12.
- This embodiment has a few, simply constructed parts which are easy to assemble, the area of the recess 12 which is open to the outside and not used being additionally used as a fat reservoir can, if the ball pin 3 is used for a ball joint, in the housing interior of which a grease is introduced. 5 shows a plan view of the embodiment according to FIG.
- a fifth embodiment of the ball pin 3 according to the invention can be seen from FIG. 7, wherein, as in the fourth embodiment, a stamped and bent part 26 is provided for fixing a cylindrical magnet 13 in a recess 12 of the ball pin 3.
- the stamped and bent part 26 made of spring bronze is annular and has two concentric legs 27 and 28 which are connected to one another via a web 29.
- the inner leg 27 of the stamped and bent part 26 is surrounded by a plastic sleeve 30, which is produced by plastic injection molding.
- the inner leg 27 lies completely within the wall 31 of the plastic sleeve 30, in the interior of which the magnet 13 is arranged.
- the annular web 29 adjoins and merges into the outer leg 28, which extends along the inner wall 15 of the recess 12 provided in the ball pin 3 and rests resiliently on this inner wall 15.
- the stamped and bent part 26 thus has an approximately U-shaped cross section, the body formed from the stamped and bent part 26, plastic sleeve 30 and magnet 13 being held in a force-fitting manner in the recess 12 due to the spring force of the outer leg 28 and the surface roughness of the inner wall 15 and preventing it from falling out is secured. Furthermore, the magnet 13 with its end face 18 facing the ball stud 3 bears against the bottom surface 19 of the recess 12. In order to secure the magnet 13 against falling out, the plastic sleeve 30 is closed on its end facing away from the ball stud 3 by a cover 32, which is formed in one piece with the plastic sleeve 30 and at the same time is produced with the latter in the plastic injection molding process. This embodiment is particularly easy to assemble, the open to the outside
- FIG. 8 shows a plan view of the embodiment shown in FIG. 7, from which it can be seen that around the inner leg 27, the outer leg 28 and parts of the web 29 are interrupted by free spaces 29a.
- a plurality of spring tongues 28a are formed around the inner leg 27 or the plastic sleeve 30, which are resiliently supported against the inner wall 15 of the recess 12.
- FIG. 9 shows the ball stud 3 shown in FIGS. 2 to 8 in the raw state
- FIG. 10 showing the ball stud 3 with a cylindrical magnet 13 but without a non-magnetic material.
- the magnet 13 is inserted into a recess 12 formed in the ball pin 3 such that its end face 18 facing the ball pin 3 bears against the bottom surface 19 of the recess 12 and is arranged centrally in the recess 12, so that the magnet 13 rings between its outer surface 14 and the inner wall 15 of the recess 12, an annular space 17 for receiving the non-magnetic material is formed.
- both the ball pin 3 and the magnet 13 can be held by a holder, not shown, of an injection molding tool, a plastic, which is used as a non-magnetic material, in the space 17 in the
- Injection molding process is injected.
- an embodiment can be produced, which is similar to that of Figure 2, but the ring 24 is formed by directly injecting the plastic into the space 17.
- the ring 24 is formed by directly injecting the plastic into the space 17.
- a close tolerance of the position is also possible, since the ball pin 3 and the magnet 13 can be inserted into the injection mold at predetermined locations.
- FIGS. 2 to 11 do not show the transition area between the joint ball and the pin.
- the ball studs 3 shown in FIGS. 2 to 10 also have no flattening around the recess 12. Nevertheless, those shown in Figures 2 to 10 can Embodiments can also be realized with the ball pin 3 with flattening 11 shown in FIG. 1 1, which is shown in its raw state in this figure.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention relates to a ball stud (3) of a ball joint for a motor vehicle, comprising a stud (2) and a joint ball (1) joined thereto. A recess (12) having a magnet (13) placed therein is provided inside said ball stud (3). A space (17) is formed between the lateral surface (14) of the magnet (13) and the inner wall (15) of the recess (12) and is filled with a non-magnetic material (16) for fixing the magnet (13).
Description
Kugelzapfen ball pin
Beschreibungdescription
Die Erfindung betrifft einen Kugelzapfen eines Kugelgelenks für ein Kraftfahrzeug, mit einem Zapfen und einer mit diesem verbundenen Gelenkkugel, wobei in dem Kugelzapfen eine Ausnehmung mit einem darin angeordneten Magneten vorgesehen ist. Ferner betrifft die Erfindung ein Kugelgelenk mit einem derartigen Kugelzapfen.The invention relates to a ball pin of a ball and socket joint for a motor vehicle, with a pin and a joint ball connected to it, wherein a recess with a magnet arranged therein is provided in the ball pin. The invention further relates to a ball joint with such a ball pin.
Aus der EP 0 617 260 AI ist ein Kugelgelenk für ein Kraftfahrzeug bekannt, wobei ein Kugelkopf in eine Kugelpfanne eingesetzt ist. In dem Kugelkopf ist ein Permanentmagnet angeordnet, dem ein im Bereich der Kugelpfanne vorgesehener magnetfeldempfindlicher Fühler gegenüberliegt.A ball joint for a motor vehicle is known from EP 0 617 260 AI, a ball head being inserted into a ball socket. A permanent magnet is arranged in the ball head and is opposed by a magnetic field-sensitive sensor provided in the region of the ball socket.
Aus der DE 101 10 738 CI ist ein Kugelgelenk für ein Kraftfahrzeug bekannt, wobei ein einen Bolzenabschnitt und einen Kugelabschnitt aufweisender Kugelbolzen mit seinem Kugelabschnitt dreh- und schwenkbar in einer in einem Gehäuseabschnitt vorgesehenen kugelkalottenförrnigen Aufnahme aufgenommen ist. In dem Kugelabschnitt ist ein Permanentmagnet angeordnet, dem ein zwei Hall-Sensorplättchen aufweisendes Sensorelement gegenüberliegt.A ball joint for a motor vehicle is known from DE 101 10 738 CI, a ball pin having a pin section and a ball section being received with its ball section rotatably and pivotably in a spherical cap-shaped receptacle provided in a housing section. A permanent magnet is arranged in the spherical section and is opposed by a sensor element having two Hall sensor platelets.
In den vorgenannten Druckschriften ist die Anordnung des Magneten im Kugelzapfen nicht hinreichend beschrieben, so dass insbesondere Nachteile im Fertigungsprozess auftreten können. Auch können Temperaturwechselbeanspruchungen bei unzureichender Befestigung des Magneten in dem Kugelzapfen zu Problemen fuhren. Ferner sind Kugelzapfen für Kraftfahrzeuge regelmäßig aus einem ferromagnetischen Material hergestellt, welches den Verlauf des vom Magneten erzeugten Magnetfelds hinsichtlich
einer Messung dieses Magnetfelds mittels eines magnetfeldempfϊndlichen Sensors negativ beeinflussen kann. Insbesondere ist es möglich, dass der magnetische Fuß maßgeblich im ferromagnetischen Material stattfindet und nicht sichergestellt ist, dass dem magnetfeldempfindlichen Sensor „ausreichend Feld" zur Verfügung steht.The arrangement of the magnet in the ball pin is not adequately described in the aforementioned publications, so that disadvantages in particular can occur in the manufacturing process. Temperature change stresses can also lead to problems if the magnet is insufficiently fastened in the ball stud. Furthermore, ball studs for motor vehicles are regularly made of a ferromagnetic material, which is the course of the magnetic field generated by the magnet a measurement of this magnetic field by means of a sensor sensitive to a magnetic field. In particular, it is possible for the magnetic base to take place to a significant extent in the ferromagnetic material and not to ensure that “sufficient field” is available to the magnetic field-sensitive sensor.
Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zu Grunde, einen für die Serienherstellung geeigneten Kugelzapfen zu schaffen, in dem ein Magnet sicher montiert ist. Ferner soll auch bei Verwendung eines ferromagnetischen Materials für den Kugelzapfen eine negative Beeinflussung des von dem Magneten erzeugten Magnetfelds hinsichtlich einer Messung dieses Magnetfelds mittels eines magnetfeldempfindlichen Sensors vermieden werden.Starting from this prior art, the invention is based on the object of creating a ball stud suitable for series production, in which a magnet is securely mounted. Furthermore, a negative influence on the magnetic field generated by the magnet with regard to a measurement of this magnetic field by means of a magnetic field-sensitive sensor should also be avoided when using a ferromagnetic material for the ball stud.
Diese Aufgabe wird erfindungsgemäß durch einen Kugelzapfen mit den Merkmalen nach Anspruch 1 und durch ein Kugelgelenk mit den Merkmalen nach Anspruch 21 gelöst. Bevorzugte Weiterbildungen sind in den Unteransprüchen gegeben.This object is achieved by a ball stud with the features of claim 1 and by a ball joint with the features of claim 21. Preferred further developments are given in the subclaims.
Der erfindungsgemäße Kugelzapfen eines Kugelgelenks für ein Kraftfahrzeug weist einen Zapfen und eine mit diesem verbundene Gelenkkugel auf, wobei in dem Kugelzapfen eine Ausnehmung mit einem darin angeordneten Magneten vorgesehen ist. Zwischen der Man- telfläche des Magneten und der Innen wandung der Ausnehmung ist ein Zwischenraum ausgebildet, der mit einem nichtmagnetischen Werkstoff zum Festlegen des Magneten gefüllt ist.The ball pin according to the invention of a ball joint for a motor vehicle has a pin and a joint ball connected to it, a recess with a magnet arranged therein being provided in the ball pin. A space is formed between the outer surface of the magnet and the inner wall of the recess, which is filled with a non-magnetic material for fixing the magnet.
Die erfindungsgemäße Lösung kann ebenso darin bestehen, mehrere Ausnehmungen beziehungsweise Magnete vorzusehen, wobei beispielsweise auch in einer Ausnehmung mehrere Magnete anordenbar sind.The solution according to the invention can also consist of providing a plurality of recesses or magnets, wherein, for example, a plurality of magnets can also be arranged in a recess.
Dadurch, dass der zwischen der Mantelfläche des Magneten und der Innenwandung der Ausnehmung ausgebildete Zwischenraum mit einem nichtmagnetischen Werkstoff gefüllt ist, lässt sich der insbesondere als Permanentmagnet ausgebildete Magnet prozesssicher im Rahmen einer Serienfertigung in dem Kugelzapfen montieren. Ferner ist durch die Anordnung des nichtmagnetischen Materials rings des Magneten in dem Zwischenraum
eine negative Beeinflussung des von dem Magneten erzeugten Magnetfelds hinsichtlich einer Messung dieses Magnetfelds mittels eines insbesondere außerhalb des Kugelzapfens angeordneten magnetfeldempfindlichen Sensors verringert, falls der Kugelzapfen aus einem ferromagnetischen Material hergestellt ist. Der durch das nichtmagnetische Material erzielte, für die Magnetfeldmessung günstigere Verlauf des Magnetfelds, ermöglicht eine verlässlichere und genauere Erfassung der Position des Magneten mittels dieser Magnetfeldmessung. Auch ist es möglich, durch eine geeignete Auswahl des nichtmagnetischen Werkstoffs bei Temperaturwechselbeanspruchung ein unterschiedliches termisches Ausdehnungsverhalten von Magnet und Kugelzapfen zu kompensieren.Characterized in that the space formed between the outer surface of the magnet and the inner wall of the recess is filled with a non-magnetic material, the magnet, which is in particular in the form of a permanent magnet, can be reliably mounted in the ball stud during series production. Furthermore, the arrangement of the non-magnetic material around the magnet in the space a negative influence on the magnetic field generated by the magnet with regard to a measurement of this magnetic field by means of a magnetic field-sensitive sensor arranged in particular outside the ball pin is reduced if the ball pin is made of a ferromagnetic material. The course of the magnetic field achieved by the non-magnetic material, which is more favorable for the magnetic field measurement, enables a more reliable and more precise detection of the position of the magnet by means of this magnetic field measurement. It is also possible to compensate for a different thermal expansion behavior of the magnet and ball stud by a suitable selection of the non-magnetic material in the event of thermal cycling.
Der Magnet kann derart in der Ausnehmung angeordnet sein, dass kein unmittelbarer Kontakt zwischen Magnet und Kugelzapfen besteht. Bevorzugt steht der Magnet aber mit einer seiner Stirnseiten in unmittelbarem Kontakt mit dem Kugelzapfen, so dass die Montage des Magneten in den Kugelzapfen einfacher vorgenommen werden kann. Der Magnet wird dann z.B. so lange in die Ausnehmung eingeschoben, bis seine demThe magnet can be arranged in the recess such that there is no direct contact between the magnet and the ball pin. However, the magnet is preferably in direct contact with the ball stud with one of its end faces, so that the magnet can be mounted more easily in the ball stud. The magnet is then e.g. pushed into the recess until its the
Kugelzapfen zugewandte Stirnfläche an der Bodenfläche der Ausnehmung anliegt. Somit ist die Montage des Magneten hinsichtlich der Längsachse der Ausnehmung selbstjustierend. Ferner ist ein Verkippen des Magneten weitgehend ausgeschlossen. Ein solches Verkippen könnte zu Fehlern bei der Positionsbestimmung des Magneten durch eine Magnetfeldmessung führen. Ferner ergibt sich durch den Kontakt ein für dieEnd face facing ball stud abuts the bottom surface of the recess. The assembly of the magnet is thus self-adjusting with respect to the longitudinal axis of the recess. Furthermore, tilting of the magnet is largely excluded. Such tilting could lead to errors in the position determination of the magnet by a magnetic field measurement. Furthermore, the contact results in a
Magnetfeldmessung günstigerer Verlauf des Magnetfelds, falls der Kugelzapfen aus einem ferromagnetischen Material hergestellt ist.Magnetic field measurement more favorable course of the magnetic field if the ball stud is made of a ferromagnetic material.
Der Kugelzapfen bzw. die Gelenkkugel können im Bereich der Ausnehmung, aber auch vollständig aus einem ferromagnetischen Material, bevorzugt aus einem ferromagnetischen Stahl hergestellt sein, wobei sich für den nichtmagnetischen Werkstoff z. B. Federbronze, Aluminium oder Kunststoff, wie Polyamid (PA) oder Polyoxymethylen (POM), als geeignet erwiesen haben. Bei der Auswahl der Werkstoffe ist aber auf die unterschiedlichen Temperaturausdehnungskoeffizienten zu achten, deren Auswirkungen in einem Temperaturbereich von - 40°C bis 120°C nicht unerheblich sind. Ferner besteht bei Kunststoffen die Gefahr der Wasseraufnahme.
Nachfolgend sind einige Werkstoffkenngrößen angegeben, die bei der Herstellung des erfindungsgemäßen Kugelzapfens berücksichtigt werden können:The ball pin or the joint ball can be made in the region of the recess, but also completely from a ferromagnetic material, preferably from a ferromagnetic steel. B. spring bronze, aluminum or plastic, such as polyamide (PA) or polyoxymethylene (POM), have proven to be suitable. When selecting the materials, however, attention must be paid to the different coefficients of thermal expansion, the effects of which are not insignificant in a temperature range from - 40 ° C to 120 ° C. There is also a risk of water absorption in plastics. Some material parameters are given below, which can be taken into account in the manufacture of the ball pin according to the invention:
Ausdehnungskoeffizient Stahl : 0,000016 1 /°C ( 1 /K) Ausdehnungskoeffizient Aluminium: 0,0000238 1/°C (1/K)Expansion coefficient steel: 0.000016 1 / ° C (1 / K) Expansion coefficient aluminum: 0.0000238 1 / ° C (1 / K)
Ausdehnungskoeffizient Kunststoff PA: 0,175 E-4 1 /°C ( 1 /K)Expansion coefficient plastic PA: 0.175 E-4 1 / ° C (1 / K)
Ausdehnungskoeffizient Kunststoff POM: 1,1 E-4 1 /°C ( 1 /K)Expansion coefficient plastic POM: 1.1 E-4 1 / ° C (1 / K)
Feuchtigkeitsaufnahme PA: 1,7 %Moisture absorption PA: 1.7%
Feuchtigkeitsaufnahme POM: 0,8 % Wasseraufnahme PA: 0,2 %Moisture absorption POM: 0.8% Water absorption PA: 0.2%
Wasseraufnahme POM: 5,5 %Water absorption POM: 5.5%
Die Werte für Polyamid ergeben sich z.B. für PA66.The values for polyamide result e.g. for PA66.
Der Magnet kann zylinderförmig oder kegelstumpfförmig ausgebildet sein, wobei sich eine zylinderförmige Ausgestaltung der Ausnehmung als vorteilhaft erwiesen hat. Insbesondere ist der Innendurchmesser der Ausnehmung größer als der maximale Außendurchmesser des Magneten.The magnet can be cylindrical or frustoconical, a cylindrical configuration of the recess having proven to be advantageous. In particular, the inside diameter of the recess is larger than the maximum outside diameter of the magnet.
Bei einer kegelstumpfförmigen Ausgestaltung des Magneten ist insbesondere die kleinere Stirnfläche des Magneten dem Kugelzapfen abgewandt. Diese Ausgestaltung des Magneten wirkt sich auf dessen magnetisches Feld aus, so dass für einen magnetfeldempfindlichen Sensor „mehr" Feld zur Erfassung des Magnetfelds zur Verfügung steht. Grund dafür ist der im Vergleich zu einem zylinderförmigen Magneten mit gleicher Magnetfeldaustrittsfläche relativ höhere Energieinhalt, der mit dem Volumen des Magneten gekoppelt ist. Durch die kegelstumpfförmige Ausgestaltung wird somit eine kleine Magnetfeldaustrittsfläche bei großem Magnetvolumen geschaffen.In the case of a frustoconical configuration of the magnet, the smaller end face of the magnet in particular faces away from the ball pin. This configuration of the magnet has an effect on its magnetic field, so that "more" field is available for a magnetic field-sensitive sensor for detecting the magnetic field. The reason for this is the relatively higher energy content compared to a cylindrical magnet with the same magnetic field exit surface, which is associated with the The cone-shaped design thus creates a small magnetic field exit area with a large magnet volume.
Eine Montageerleichterung ist dadurch erzielbar, dass von dem nichtmagnetischen Werkstoff ein den Magnet aufnehmender Ring gebildet ist, welcher zusammen mit dem Magnet in der Ausnehmung festgeklebt sein kann. Dieser Ring ist bevorzugt aus Aluminium oder Kunststoff hergestellt und bildet insbesondere ein separates Bauteil.
Ferner ist eine Selbstzentrierung des Rings in der Ausnehmung durch den Klebstoff möglich, wobei die Verwendung eines teilelastischen Klebstoffs auch eine sichere Verbindung für den Fall gewährleistet, dass starke Temperaturschwankungen auftreten. Ein solcher Klebstoff kann das unterschiedliche thermische Ausdehnungsverhalten von Ring und Kugelzapfen ausgleichen. Als Klebstoff kann z.B. ein UV-härtender Kleber verwendet werden, wenn der Ring aus einem für UV-Licht durchlässigen Material hergestellt ist. Falls der Ring aus Kunststoff hergestellt ist, kann der Ring gemäß einer Alternative auch unmittelbar in die den Magneten aufweisende Ausnehmung eingespritzt sein.Ease of assembly can be achieved in that the non-magnetic material forms a ring which receives the magnet and which can be glued together with the magnet in the recess. This ring is preferably made of aluminum or plastic and in particular forms a separate component. Furthermore, self-centering of the ring in the recess by the adhesive is possible, the use of a partially elastic adhesive also ensuring a secure connection in the event that large temperature fluctuations occur. Such an adhesive can compensate for the different thermal expansion behavior of the ring and ball stud. For example, a UV-curing adhesive can be used as the adhesive if the ring is made of a material which is transparent to UV light. If the ring is made of plastic, the ring can, according to an alternative, also be injected directly into the recess having the magnet.
Der Magnet kann aber auch vollständig in Kunststoff eingebettet sein, wobei dieser Kunststoff insbesondere durch Spritzgießen an den Magneten angespritzt ist. Der durch den Magneten und den Kunststoff gebildete Körper ist insbesondere ein separates Bauteil und kann dann in der Ausnehmung eingeklebt und/oder eingepresst sein. Auch hier ist ein UV-härtender Kleber einsetzbar. Alternativ kann der Kunststoff aber auch in die den Magneten aufweisende Ausnehmung eingespritzt sein.However, the magnet can also be completely embedded in plastic, this plastic being injection-molded onto the magnet in particular by injection molding. The body formed by the magnet and the plastic is in particular a separate component and can then be glued and / or pressed into the recess. A UV-curing adhesive can also be used here. Alternatively, the plastic can also be injected into the recess having the magnet.
Gemäß einer anderen Weiterbildung der Erfindung kann der magnetische Werkstoff in Form eines Stanzbiegeteils ausgebildet sein, in welches der Magnet eingesetzt ist. Das bevorzugt metallische Stanzbiegeteil ist insbesondere aus Federbronze hergestellt und kann zusammen mit dem Magneten in die Ausnehmung eingepresst sein. Ferner ist es möglich, das Stanzbiegeteil teilweise federnd auszubilden, so dass dieses im montierten Zustand federnd gegen die Innenwandung der Ausnehmung abgestützt ist. Auch kann der Magnet selbst in das Stanzbiegeteil eingepresst sein, wobei der Magnet kraftschlüssig in dem Stanzbiegeteil gehalten ist.According to another development of the invention, the magnetic material can be in the form of a stamped and bent part in which the magnet is inserted. The preferably metallic stamped and bent part is made in particular of spring bronze and can be pressed into the recess together with the magnet. Furthermore, it is possible to make the stamped and bent part partially resilient, so that in the assembled state it is resiliently supported against the inner wall of the recess. The magnet itself can also be pressed into the stamped and bent part, the magnet being held non-positively in the stamped and bent part.
Bevorzugt ist das Stanzbiegeteil ringförmig ausgebildet und weist zwei konzentrische Schenkel und einen diese miteinander verbindenden Steg auf. Somit ist es möglich, den Magnet innerhalb des inneren Schenkels anzuordnen, wobei der äußere Schenkel als sich gegen die Innenwandung der Ausnehmung abstützende Feder ausgebildet ist. Aufgrund der Federvorspannung dieser Feder und der Oberflächenrauheit der Innenwandung der Ausnehmung in dem Kugelzapfen ist die durch das Stanzbiegeteil und den Magneten
gebildete Anordnung kraftschlüssig in dem Kugelzapfen gehalten. Auch ist es möglich, den inneren bzw. kleineren Schenkel in eine Kunststoffhülse einzubetten, in der auch der Magnet angeordnet sein kann.The stamped and bent part is preferably ring-shaped and has two concentric legs and a web connecting them to one another. It is thus possible to arrange the magnet within the inner leg, the outer leg being designed as a spring which is supported against the inner wall of the recess. Due to the spring preload of this spring and the surface roughness of the inner wall of the recess in the ball stud is due to the stamped and bent part and the magnet Formed arrangement held non-positively in the ball pin. It is also possible to embed the inner or smaller leg in a plastic sleeve in which the magnet can also be arranged.
Der äußere Schenkel kann durch Freiräume in mehrere Federzungen unterteilt sein, die rings des inneren Schenkels angeordnet sind und sich gegen die Innenwandung der Ausnehmung zum Ausbilden der kraftschlüssigen Verbindung mit einer Federkraft abstützen. Dabei können sich die Freiräume auch bis in den Steg hinein erstrecken.The outer leg can be divided by free spaces into a plurality of spring tongues which are arranged around the inner leg and which are supported with a spring force against the inner wall of the recess in order to form the non-positive connection. The free spaces can also extend into the web.
Die Aufgabe der Erfindung wird ferner durch ein Kugelgelenk für ein Kraftfahrzeug, mit einem Kugelgelenkgehäuse und einem darin drehbar und schwenkbar gelagerten, einen Zapfen und eine mit diesem verbundene Gelenkkugel aufweisenden Kugelzapfen gelöst, in welchem eine Ausnehmung mit einem darin angeordneten Magneten vorgesehen ist. Dabei ist zwischen der Mantelfläche des Magneten und der Innenwandung der Ausnehmung ein Zwischenraum ausgebildet, der mit einem nichtmagnetischen Werkstoff zur Festlegung des Magneten gefüllt ist.The object of the invention is further achieved by a ball joint for a motor vehicle, with a ball joint housing and a ball pin which is rotatably and pivotably mounted therein and has a pin and a ball pin connected to it, in which a recess is provided with a magnet arranged therein. In this case, an intermediate space is formed between the outer surface of the magnet and the inner wall of the recess, which is filled with a non-magnetic material for fixing the magnet.
Der Kugelzapfen des erfindungsgemäßen Kugelgelenks kann in gleicher Weise wie der erfindungsgemäße Kugel zapfen weitergebildet sein.The ball pin of the ball joint according to the invention can be developed in the same way as the ball pin according to the invention.
Die Erfindung wird nachfolgend anhand bevorzugter Ausführungsformen unter Bezugnahme auf die Zeichnung beschrieben. In der Zeichnung zeigen:The invention is described below using preferred embodiments with reference to the drawing. The drawing shows:
Figur 1 : eine Ausführungsform eines erfindungsgemäßen Kugelgelenks in Schnittansicht,FIG. 1: an embodiment of a ball joint according to the invention in a sectional view,
Figur 2: eine schematische Schnittansicht einer ersten Ausführungsform des erfindungsgemäßen Kugelzapfens,FIG. 2: a schematic sectional view of a first embodiment of the ball pin according to the invention,
Figur 3: eine schematische Schnittansicht einer zweiten Ausführungsform des erfindungsgemäßen Kugelzapfens,
Figur 4: eine schematische Schnittansicht einer dritten Ausführungsform des erfindungsgemäßen Kugelzapfens,FIG. 3: a schematic sectional view of a second embodiment of the ball pin according to the invention, FIG. 4: a schematic sectional view of a third embodiment of the ball pin according to the invention,
Figur 5: eine schematische Schnittansicht einer vierten Ausführungsform des erfindungsgemäßen Kugelzapfens,FIG. 5: a schematic sectional view of a fourth embodiment of the ball pin according to the invention,
Figur 6: eine Draufsicht auf die Ausführungsform nach Figur 5,FIG. 6: a top view of the embodiment according to FIG. 5,
Figur 7: eine schematische Schnittansicht einer fünften Ausführungsform des erfindungsgemäßen Kugelzapfens,FIG. 7: a schematic sectional view of a fifth embodiment of the ball pin according to the invention,
Figur 8: eine Draufsicht auf die Ausführungsform nach Figur 7.FIG. 8: a top view of the embodiment according to FIG. 7.
Figur 9: eine schematische Schnittansicht eines erfindungsgemäßen Kugelzapfens vor der Montage des Magneten und des nichtmagnetischen Werkstoffs,FIG. 9: a schematic sectional view of a ball pin according to the invention prior to the assembly of the magnet and the non-magnetic material,
Figur 10: eine schematische Schnittansicht des Kugelzapfens nach Figur 9, mit eingesetztem Magnet aber ohne nichtmagnetischen Werkstoff undFigure 10 is a schematic sectional view of the ball stud according to Figure 9, with an inserted magnet but without a non-magnetic material and
Figur 1 1 : eine schematische Schnittansicht des Kugelzapfens nach Fig. 1 vor der Montage des Magneten und des nichtmagnetischen Werkstoffs.Figure 1 1: a schematic sectional view of the ball stud according to Fig. 1 before assembly of the magnet and the non-magnetic material.
Aus Figur 1 ist eine Schnittansicht einer Ausführungsform des erfindungsgemäßen Kugelgelenks ersichtlich, wobei ein mit einer Gelenkkugel 1 und einem Zapfen 2 versehener Kugelzapfen 3 in einem Innenraum 4 eines Kugelgelenkgehäuses 5 unter Zwischenschaltung einer Lagerschale 6 dreh- und schwenkbar gelagert ist. Der Kugelzapfen 3 erstreckt sich mit seinem Zapfen 2 durch eine Öffnung 7 aus dem Kugelgelenkgehäuse 5 heraus, und ist an seinem der Kugel 1 abgewandten Ende mit einem Gewinde 8 versehen. In dem dem Zapfen 2 abgewandten Bereich des Kugelgelenkgehäuses 5 weist dieses eine mit einem Deckel 9 verschlossene Montageöffnung 7a auf, an dessen der Gelenkkugel 1 zugewandten Fläche ein magnetfeldempfindlicher Sensor 10 angeordnet ist.
Die Gelenkkugel 1 ist in ihrem dem Deckel 9 zugewandten Bereich mit einer Abflachung 11 versehen, in der eine zylinderförmige Ausnehmung 12 ausgebildet ist, in die ein Permanentmagnet 13 eingesetzt ist. Die Ausnehmung 12 und der Permanentmagnet 13 erstrecken sich in das Innere der Gelenkkugel 1 hinein, wobei zwischen der Mantelfläche 14 des Magneten 13 und der Innenwandung 15 der Ausnehmung 12 ein mit einem nicht magnetischen Material 16 gefüllter Zwischenraum 17 ausgebildet ist. Der Magnet 13 liegt mit seiner dem Kugelzapfen 3 zugewandten Stirnfläche 18 an der Bodenfläche 19 der Ausnehmung 12 an und ist über das nichtmagnetische Material 16 in der Ausnehmung 12 festgelegt. Wie aus der Figur ersichtlich, ragt der Magnet 13 mit seiner dem Kugelzapfen 3 abgewandten Stirnseite 20 geringfügig aus der Abflachung 11 heraus. Zum Schutz vor Umwelteinflüssen ist das Kugelgelenk in üblicher Weise mit einem Dichtungsbalg 21 versehen, der über Spannringe 22 an dem Kugelgelenkgehäuse 5 festgelegt ist und mit einem Dichtbereich 23 dichtend an dem Zapfen 2 anliegt.1 shows a sectional view of an embodiment of the ball joint according to the invention, a ball pin 3 provided with a ball 1 and a pin 2 being rotatably and pivotably mounted in an interior 4 of a ball joint housing 5 with the interposition of a bearing shell 6. The ball pin 3 extends with its pin 2 through an opening 7 out of the ball joint housing 5, and is provided with a thread 8 at its end facing away from the ball 1. In the area of the ball joint housing 5 facing away from the pin 2, the latter has an assembly opening 7a closed with a cover 9, on the surface of which the joint ball 1 faces a sensor 10 which is sensitive to magnetic fields. The joint ball 1 is provided in its area facing the cover 9 with a flat 11, in which a cylindrical recess 12 is formed, into which a permanent magnet 13 is inserted. The recess 12 and the permanent magnet 13 extend into the interior of the joint ball 1, an intermediate space 17 filled with a non-magnetic material 16 being formed between the lateral surface 14 of the magnet 13 and the inner wall 15 of the recess 12. The magnet 13 lies with its end face 18 facing the ball stud 3 against the bottom surface 19 of the recess 12 and is fixed in the recess 12 via the non-magnetic material 16. As can be seen from the figure, the magnet 13 protrudes slightly with its end face 20 facing away from the ball stud 3 from the flattened portion 11. To protect against environmental influences, the ball joint is provided in the usual way with a sealing bellows 21 which is fixed to the ball joint housing 5 by means of clamping rings 22 and which bears sealingly against the pin 2 with a sealing region 23.
Zwar ist gemäß Figur 1 der Magnet 13 in dem dem Zapfen 2 abgewandten Bereich der Gelenkkugel 1 angeordnet, es ist aber auch möglich, den Magneten 13 an einer anderen Stelle des Kugelzapfens 3 vorzusehen.1, the magnet 13 is arranged in the area of the joint ball 1 facing away from the pin 2, but it is also possible to provide the magnet 13 at another point on the ball pin 3.
Aus Figur 2 ist eine erste Ausführungsform des erfindungsgemäßen Kugelzapfens 3 ersichtlich, wobei ein Ring 24 aus Kunststoff zusammen mit einem Magneten 13 in eine Ausnehmung 12 des Kugelzapfens 3 eingeklebt ist und der Magnet 13 mit seiner dem Kugelzapfen 3 zugewandten Stirnseite 18 an der Bodenfläche 19 der Ausnehmung 12 anliegt. Der verwendete Kunststoff ist für UV-Licht durchlässig, wobei der Kleber durch Einstrahlung von UV-Licht aushärtet, was insbesondere für den Serieneinsatz günstig ist. Zwischen dem Ring 24 und dem Zapfen 3 ist kein Spalt vorhanden, so dass ein möglicher Korrosionsherd ausgeschlossen ist.FIG. 2 shows a first embodiment of the ball pin 3 according to the invention, a ring 24 made of plastic being glued together with a magnet 13 into a recess 12 in the ball pin 3 and the magnet 13 with its end face 18 facing the ball pin 3 on the bottom surface 19 of FIG Recess 12 is present. The plastic used is permeable to UV light, whereby the adhesive hardens by exposure to UV light, which is particularly advantageous for series production. There is no gap between the ring 24 and the pin 3, so that a possible source of corrosion is excluded.
Aus Figur 3 ist eine zweite Ausführungsform des erfindungsgemäßen Kugelzapfens 3 ersichtlich, wobei ein zylindrischer Magnet 13 vollständig in ein im Spritzgießverfahren hergestelltes Kunststoffelement 25 eingebettet ist. Der aus Magnet 13 und
Kunststoffelement 25 gebildete Körper ist in eine Ausnehmung 12 des Kugelzapfens 3 eingepresst, wobei der Magnet 13 mit seiner dem Kugelzapfen 3 zugewandten Stirnseite 18 an der Bodenfläche 19 der Ausnehmung 12 anliegt, so dass ein insgesamt robustes Bauteil bei einem einfachen Montageprozess geschaffen ist. Wegen des Einpressens kann auf die Verwendung eines Klebstoffs verzichtet werden, so dass keine Tropf- und Trocknungszeiten eines UV -härtenden Klebers beachtet werden müssen.FIG. 3 shows a second embodiment of the ball pin 3 according to the invention, a cylindrical magnet 13 being completely embedded in a plastic element 25 produced by the injection molding process. The magnet 13 and Plastic element 25 formed body is pressed into a recess 12 of the ball pin 3, the magnet 13 with its end 18 facing the ball pin 3 abutting the bottom surface 19 of the recess 12, so that an overall robust component is created in a simple assembly process. Due to the pressing in, the use of an adhesive can be dispensed with, so that no dripping and drying times of a UV-curing adhesive have to be observed.
Aus Figur 4 ist eine dritte Ausführungsform des erfindungsgemäßen Kugelzapfens 3 ersichtlich, wobei ein kegelstumpfförmiger Magnet 13 vollständig in ein im Spritzgießverfahren hergestelltes Kunststoffelement 25 eingebettet ist. Der Magnet 13 liegt mit seiner dem Kugelzapfen 3 zugewandten Stirnseite 18 an der Bodenfläche 19 der Ausnehmung 12 an und verjüngt sich von der Bodenfläche 19 ausgehend mit zunehmendem Abstand von dieser.FIG. 4 shows a third embodiment of the ball pin 3 according to the invention, a frustoconical magnet 13 being completely embedded in a plastic element 25 produced by the injection molding process. The magnet 13 lies with its end face 18 facing the ball stud 3 against the bottom surface 19 of the recess 12 and tapers from the bottom surface 19 with increasing distance therefrom.
Aus Figur 5 ist eine vierte Ausführungsform des erfindungsgemäßen Kugelzapfens 3 ersichtlich, wobei ein zylindrischer Magnet 13 in ein Stanzbiegeteil 26 aus Federbronze eingepresst ist. Das Stanzbiegeteil 26 ist ringförmig ausgebildet und weist zwei konzentrische Schenkel 27 und 28 auf, die über einen Steg 29 miteinander verbunden sind. Dabei erstreckt sich der inneren Schenkel 27 parallel zur Mantelfläche 14 des Magneten 13 und liegt fest an dieser an, so dass der Magnet 13 kraftschlüssig in dem Stanzbiegeteil 26 gehalten ist. An dem dem Kugelzapfen 3 zugewandten Ende des inneren Schenkels 27 schließt sich der ringförmige Steg 29 an und geht in den äußeren Schenkel 28 über, der sich entlang der Innenwandung 15 einer in dem Kugelzapfen 3 vorgesehenen Ausnehmung 12 erstreckt und federnd an dieser Innenwandung 15 anliegt. Das Stanzbiegeteil 26 weist somit einen in etwa U-förmigen Querschnitt auf, wobei der aus Stanzbiegeteil 26 und Magnet 13 gebildete Körper auf Grund der Federkraft des äußeren Schenkels 28 und der Oberflächenrauheit der Innenwandung 15 kraftschlüssig in der Ausnehmung 12 gehalten und gegen ein Herausfallen gesichert ist. Ferner liegt der Magnet 13 mit seiner dem Kugelzapfen 3 zugewandten Stirnseite 18 an der Bodenfläche 19 der Ausnehmung 12 an. Diese Ausführungsform weißt wenige, einfach aufgebaute Teile auf, die leicht zu montieren sind, wobei der nach außen hin offene und nicht genutzte Bereich der Ausnehmung 12 zusätzlich als Fettreservoir genutzt werden
kann, wenn der Kugelzapfen 3 für ein Kugelgelenk verwendet wird, in dessen Gehäuseinnenraum ein Schmierfett eingebracht ist. Eine Draufsicht auf die Ausführungsform nach Figur 5 zeigt Figur 6, woraus ersichtlich ist, dass um den inneren Schenkel 27 herum der äußere Schenkel 28 sowie Teile des Stegs 29 von Freiräumen 29a unterbrochen sind. Somit sind rings des inneren Schenkels 27 mehrere Federzungen 28a gebildet, die sich federnd gegen die Innenwandung 15 der Ausnehmung 12 abstützen.FIG. 5 shows a fourth embodiment of the ball pin 3 according to the invention, a cylindrical magnet 13 being pressed into a stamped and bent part 26 made of spring bronze. The stamped and bent part 26 is ring-shaped and has two concentric legs 27 and 28 which are connected to one another via a web 29. The inner leg 27 extends parallel to the lateral surface 14 of the magnet 13 and lies firmly against it, so that the magnet 13 is held in the punched and bent part 26 in a force-locking manner. At the end of the inner leg 27 facing the ball pin 3, the annular web 29 adjoins and merges into the outer leg 28, which extends along the inner wall 15 of a recess 12 provided in the ball pin 3 and rests resiliently on this inner wall 15. The stamped and bent part 26 thus has an approximately U-shaped cross section, the body formed from the stamped and bent part 26 and magnet 13 being held in a force-fitting manner in the recess 12 due to the spring force of the outer leg 28 and the surface roughness of the inner wall 15 and being secured against falling out , Furthermore, the magnet 13 with its end face 18 facing the ball stud 3 bears against the bottom surface 19 of the recess 12. This embodiment has a few, simply constructed parts which are easy to assemble, the area of the recess 12 which is open to the outside and not used being additionally used as a fat reservoir can, if the ball pin 3 is used for a ball joint, in the housing interior of which a grease is introduced. 5 shows a plan view of the embodiment according to FIG. 5, from which it can be seen that around the inner leg 27, the outer leg 28 and parts of the web 29 are interrupted by free spaces 29a. Thus, a plurality of spring tongues 28a are formed around the inner leg 27, which are resiliently supported against the inner wall 15 of the recess 12.
Aus Figur 7 ist eine fünfte Ausführungsform des erfindungsgemäßen Kugelzapfens 3 ersichtlich, wobei, wie bei der vierten Ausführungsform, ein Stanzbiegeteil 26 zur Festlegung eines zylindrischen Magneten 13 in einer Ausnehmung 12 des Kugelzapfens 3 vorgesehen ist. Das aus Federbronze hergestellte Stanzbiegeteil 26 ist ringförmig ausgebildet und weist zwei konzentrische Schenkel 27 und 28 auf, die über einen Steg 29 miteinander verbunden sind. Im Unterschied zu der vorherigen Ausführungsform ist der innere Schenkel 27 des Stanzbiegeteils 26 mit einer Kunststoffhülse 30 umgeben, die durch Kunststoff-Spritzgießen hergestellt ist. Dabei liegt der innere Schenkel 27 vollständig innerhalb der Wandung 31 der Kunststoffhülse 30, in dessen Innenraum der Magnet 13 angeordnet ist. An dem dem Kugelzapfen 3 zugewandten Ende des inneren Schenkels 27 schließt sich der ringförmige Steg 29 an und geht in den äußeren Schenkel 28 über, der sich entlang der Innenwandung 15 der in dem Kugelzapfen 3 vorgesehenen Ausnehmung 12 erstreckt und federnd an dieser Innenwandung 15 anliegt. DasA fifth embodiment of the ball pin 3 according to the invention can be seen from FIG. 7, wherein, as in the fourth embodiment, a stamped and bent part 26 is provided for fixing a cylindrical magnet 13 in a recess 12 of the ball pin 3. The stamped and bent part 26 made of spring bronze is annular and has two concentric legs 27 and 28 which are connected to one another via a web 29. In contrast to the previous embodiment, the inner leg 27 of the stamped and bent part 26 is surrounded by a plastic sleeve 30, which is produced by plastic injection molding. The inner leg 27 lies completely within the wall 31 of the plastic sleeve 30, in the interior of which the magnet 13 is arranged. At the end of the inner leg 27 facing the ball pin 3, the annular web 29 adjoins and merges into the outer leg 28, which extends along the inner wall 15 of the recess 12 provided in the ball pin 3 and rests resiliently on this inner wall 15. The
Stanzbiegeteil 26 weist somit einen in etwa U-förmigen Querschnitt auf, wobei der aus Stanzbiegeteil 26, Kunststoffhülse 30 und Magnet 13 gebildete Körper auf Grund der Federkraft des äußeren Schenkels 28 und der Oberflächenrauheit der Innenwandung 15 kraftschlüssig in der Ausnehmung 12 gehalten und gegen ein Herausfallen gesichert ist. Ferner liegt der Magnet 13 mit seiner dem Kugelzapfen 3 zugewandten Stirnseite 18 an der Bodenfläche 19 der Ausnehmung 12 an. Um den Magneten 13 gegen ein Herausfallen zu sichern, ist die Kunststoffhülse 30 an ihrer dem Kugelzapfen 3 abgewandten Stirnseite durch einen Deckel 32 verschlossen, der mit der Kunststoffhülse 30 einstückig ausgebildet und gleichzeitig mit dieser im Kunststoff-Spritzgießverfahren hergestellt ist. Diese Ausführungsform ist besonders leicht zu montieren, wobei der nach außen hin offeneThe stamped and bent part 26 thus has an approximately U-shaped cross section, the body formed from the stamped and bent part 26, plastic sleeve 30 and magnet 13 being held in a force-fitting manner in the recess 12 due to the spring force of the outer leg 28 and the surface roughness of the inner wall 15 and preventing it from falling out is secured. Furthermore, the magnet 13 with its end face 18 facing the ball stud 3 bears against the bottom surface 19 of the recess 12. In order to secure the magnet 13 against falling out, the plastic sleeve 30 is closed on its end facing away from the ball stud 3 by a cover 32, which is formed in one piece with the plastic sleeve 30 and at the same time is produced with the latter in the plastic injection molding process. This embodiment is particularly easy to assemble, the open to the outside
Raum der Ausnehmung 12 wie bei der vorhergehenden Ausführungsform als Fettspeicher genutzt werden kann. Ferner ist der Magnet 13 durch die einseitig geschlossene
Kunststoffhülse 30 gegen Beschädigungen geschützt. Eine Draufsicht auf die aus Figur 7 ersichtliche Ausführungsform zeigt Figur 8, woraus ersichtlich ist, dass um den inneren Schenkel 27 herum der äußere Schenkel 28 sowie Teile des Stegs 29 von Freiräumen 29a unterbrochen sind. Somit sind rings des inneren Schenkels 27 bzw. der Kunststoffhülse 30 mehrere Federzungen 28a gebildet, die sich federnd gegen die Innenwandung 15 der Ausnehmung 12 abstützen.Space of the recess 12 can be used as a fat storage as in the previous embodiment. Furthermore, the magnet 13 is closed on one side Plastic sleeve 30 protected against damage. FIG. 8 shows a plan view of the embodiment shown in FIG. 7, from which it can be seen that around the inner leg 27, the outer leg 28 and parts of the web 29 are interrupted by free spaces 29a. Thus, a plurality of spring tongues 28a are formed around the inner leg 27 or the plastic sleeve 30, which are resiliently supported against the inner wall 15 of the recess 12.
Aus Figur 9 ist der in den Figuren 2 bis 8 gezeigte Kugelzapfen 3 im Rohzustand ersichtlich, wobei Figur 10 den Kugelzapfen 3 mit einem zylindrischen Magnet 13, aber ohne nichtmagnetischen Werkstoff zeigt. Der Magnet 13 ist in eine in dem Kugelzapfen 3 ausgebildete Ausnehmung 12 derart eingesetzt, dass seine dem Kugelzapfen 3 zugewandte Stirnfläche 18 an der Bodenfläche 19 der Ausnehmung 12 anliegt und dabei mittig in der Ausnehmung 12 angeordnet, so dass rings des Magneten 13 zwischen dessen Mantelfläche 14 und der Innenwandung 15 der Ausnehmung 12 ein ringförmiger Zwischenraum 17 zur Aufnahme des nichtmagnetischen Werkstoffs gebildet ist.FIG. 9 shows the ball stud 3 shown in FIGS. 2 to 8 in the raw state, FIG. 10 showing the ball stud 3 with a cylindrical magnet 13 but without a non-magnetic material. The magnet 13 is inserted into a recess 12 formed in the ball pin 3 such that its end face 18 facing the ball pin 3 bears against the bottom surface 19 of the recess 12 and is arranged centrally in the recess 12, so that the magnet 13 rings between its outer surface 14 and the inner wall 15 of the recess 12, an annular space 17 for receiving the non-magnetic material is formed.
Gemäß einem alternativen Herstellungsverfahren für den erfindungsgemäßen Kugelzapfens 3 können sowohl der Kugelzapfen 3 als auch der Magnet 13 von einer nicht dargestellten Halterung eines Spritzgusswerkzeugs gehalten werden, wobei ein Kunststoff, der als nichtmagnetischer Werkstoff verwendet wird, in den Zwischenraum 17 imAccording to an alternative production method for the ball pin 3 according to the invention, both the ball pin 3 and the magnet 13 can be held by a holder, not shown, of an injection molding tool, a plastic, which is used as a non-magnetic material, in the space 17 in the
Spritzgussverfahren eingespritzt wird. Auf diese Weise kann z.B. eine Ausführungsform hergestellt werden, die der aus Figur 2 ähnelt, wobei der Ring 24 allerdings durch direktes Einspritzen des Kunststoffs in den Zwischenraum 17 ausgebildet ist. Hierdurch wird eine sichere Verbindung zwischen Magnet 13 und Zapfen 3 erzielt, wobei auf Grund fehlender Spalte auch keine Spaltkorrosion möglich ist. Femer ist eine enge Tolerierung der Position möglich, da der Kugelzapfen 3 und der Magnet 13 an vorbestimmten Orten in das Spritzgusswerkzeug eingelegt werden können.Injection molding process is injected. In this way e.g. an embodiment can be produced, which is similar to that of Figure 2, but the ring 24 is formed by directly injecting the plastic into the space 17. In this way, a secure connection between the magnet 13 and the pin 3 is achieved, and no gap corrosion is possible due to the lack of gaps. A close tolerance of the position is also possible, since the ball pin 3 and the magnet 13 can be inserted into the injection mold at predetermined locations.
In den Figuren 2 bis 11 ist der Übersichtlichkeit halber auf eine Darstellung des Übergangsbereichs zwischen Gelenkkugel und Zapfen verzichtet worden. Auch weisen die aus den Figuren 2 bis 10 ersichtlichen Kugelzapfen 3 keine Abflachung rings der Ausnehmung 12 auf. Dennoch können die in den Figuren 2 bis 10 gezeigten
Ausführungsformen auch mit dem aus Figur 1 1 ersichtlichen Kugelzapfen 3 mit Abflachung 11 realisiert werden, der in dieser Figur im Rohzustand dargestellt ist.For the sake of clarity, FIGS. 2 to 11 do not show the transition area between the joint ball and the pin. The ball studs 3 shown in FIGS. 2 to 10 also have no flattening around the recess 12. Nevertheless, those shown in Figures 2 to 10 can Embodiments can also be realized with the ball pin 3 with flattening 11 shown in FIG. 1 1, which is shown in its raw state in this figure.
In allen Ausführungsformen sind für dieselben oder ähnliche Merkmale dieselben Bezugszeichen verwendet worden.
In all embodiments, the same reference numerals have been used for the same or similar features.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Gelenkkugel1 joint ball
2 Zapfen2 cones
3 Kugelzapfen3 ball studs
4 Innenraum / Gehäuseausnehmung4 interior / housing recess
5 Gehäuse5 housing
6 Lagerschale6 bearing shell
7 Gehäuseöffnung 7a Montageöffnung7 Housing opening 7a mounting opening
8 Gewinde8 threads
9 Gehäusedeckel9 housing cover
10 magnetfeldempfindlicher Sensor10 magnetic field sensitive sensor
1 1 Abflachung1 1 flattening
12 Ausnehmung in Kugelzapfen12 recess in ball stud
13 Magnet13 magnet
14 Mantelfläche des Magneten14 outer surface of the magnet
15 Innenwandung der Ausnehmung in Gelenkkugel15 inner wall of the recess in the joint ball
16 nichtmagnetischer Werkstoff16 non-magnetic material
17 Zwischenraum17 space
18 Stirnseite des Magneten, dem Kugelzapfen zugewandt18 face of the magnet, facing the ball stud
19 Bodenfläche der Ausnehmung19 bottom surface of the recess
20 Stirnseite des Magnaten, dem Kugelzapfen abgewandt20 front of the magnate, facing away from the ball stud
21 Dichtungsbalg21 sealing bellows
22 Spannringe22 clamping rings
23 Dichtbereich23 sealing area
24 Ring24 ring
25 Kunststoffelement25 plastic element
26 Stanzbiegeteil26 stamped and bent part
27 innerer Schenkel des Stanzbiegeteils27 inner leg of the stamped and bent part
28 äußerer Schenkel des Stanzbiegeteils
a Federzungen Steg des Stanzbiegeteilsa Freiräume Kunststoffhülse Wandung der Kunststoffhülse Deckel des Kunststoffhülse
28 outer leg of the stamped and bent part a spring tongues web of the stamped and bent part sa clearances plastic sleeve wall of the plastic sleeve cover of the plastic sleeve
Claims
1. Kugelzapfen (3) eines Kugelgelenks für ein Kraftfahrzeug, mit einem Zapfen (2) und einer mit diesem verbundenen Gelenkkugel (1), wobei in dem Kugelzapfen (3) eine Ausnehmung (12) mit einem darin angeordneten Magneten (13) vorgesehen ist, dadurch gekennzeichnet, dass zwischen der Mantelfläche (14) des Magneten (13) und der Innenwandung (15) der Ausnehmung (12) ein Zwischenraum (17) ausgebildet ist, der mit einem nichtmagnetischen Werkstoff (16) zum Festlegen des Magneten (13) gefüllt ist.1. Ball pin (3) of a ball joint for a motor vehicle, with a pin (2) and a joint ball (1) connected thereto, wherein a recess (12) with a magnet (13) arranged therein is provided in the ball pin (3) , characterized in that an intermediate space (17) is formed between the lateral surface (14) of the magnet (13) and the inner wall (15) of the recess (12), which is provided with a non-magnetic material (16) for fixing the magnet (13) is filled.
2. Kugelzapfen nach Anspruch 1, dadurch gekennzeichnet, dass der Magnet (13) mit einer seiner Stirnseiten (18) in unmittelbarem Kontakt mit dem Kugelzapfen (3) steht.2. Ball pin according to claim 1, characterized in that the magnet (13) with one of its end faces (18) is in direct contact with the ball pin (3).
3. Kugelzapfen nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Magnet (13) zylinderförmig oder kegelstumpfförmig ausgebildet ist.3. Ball pin according to claim 1 or 2, characterized in that the magnet (13) is cylindrical or frustoconical.
4. Kugelzapfen nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Ausnehmung (12) zylinderförmig ist.4. Ball pin according to one of the preceding claims, characterized in that the recess (12) is cylindrical.
5. Kugelzapfen nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Magnet (13) in einem Ring (24) aus dem nichtmagnetischen Werkstoff angeordnet ist.5. Ball pin according to one of the preceding claims, characterized in that the magnet (13) is arranged in a ring (24) made of the non-magnetic material.
6. Kugelzapfen nach Anspruch 5, dadurch gekennzeichnet, dass der Ring (24) zusammen mit dem Magnet (13) in der Ausnehmung (12) festgeklebt ist. 6. Ball pin according to claim 5, characterized in that the ring (24) is glued together with the magnet (13) in the recess (12).
7. Kugelzapfen nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Magnet (13) in Kunststoff eingebettet ist.7. Ball pin according to one of the preceding claims, characterized in that the magnet (13) is embedded in plastic.
8. Kugelzapfen nach Anspruch 7, dadurch gekennzeichnet, dass der Kunststoff durch Spritzgießen an den Magneten (13) angespritzt ist.8. Ball pin according to claim 7, characterized in that the plastic is injection molded onto the magnet (13).
9. Kugelzapfen nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass der durch den Magneten (13) und den Kunststoff gebildete Körper in die Ausnehmung (12) eingepresst ist.9. Ball pin according to claim 7 or 8, characterized in that the body formed by the magnet (13) and the plastic is pressed into the recess (12).
10. Kugelzapfen nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, dass der durch den Magneten (13) und den Kunststoff gebildete Körper in der Ausnehmung (12) festegeklebt ist.10. Ball pin according to one of claims 7 to 9, characterized in that the body formed by the magnet (13) and the plastic is firmly glued in the recess (12).
11. Kugelzapfen nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Magnet (13) in ein Stanzbiegeteils (26) aus dem nichtmagnetischen Werkstoff eingesetzt ist.11. Ball pin according to one of the preceding claims, characterized in that the magnet (13) is inserted into a stamped and bent part (26) made of the non-magnetic material.
12. Kugelzapfen nach Anspruch 11, dadurch gekennzeichnet, dass das Stanzbiegeteil (26) aus Federbronze besteht.12. Ball pin according to claim 11, characterized in that the stamped and bent part (26) consists of spring bronze.
13. Kugelzapfen nach Anspruch 11 oder 12, dadurch gekennzeichnet, dass das Stanzbiegeteil (26) zusammen mit dem Magneten (13) in die Ausnehmung (12) eingepresst ist.13. Ball pin according to claim 11 or 12, characterized in that the stamped and bent part (26) together with the magnet (13) is pressed into the recess (12).
14. Kugelzapfen nach Anspruch 13, dadurch gekennzeichnet, dass das Stanzbiegeteil (26) federnd gegen die Innenwandung (15) der Ausnehmung (12) abgestützt ist.14. Ball pin according to claim 13, characterized in that the stamped and bent part (26) is resiliently supported against the inner wall (15) of the recess (12).
15. Kugelzapfen nach einem der Ansprüche 1 1 bis 14, dadurch gekennzeichnet, dass der Magnet (13) in das Stanzbiegeteil (26) eingepresst ist. 15. Ball pin according to one of claims 1 1 to 14, characterized in that the magnet (13) is pressed into the stamped and bent part (26).
16. Kugelzapfen nach einem der vorangehenden Ansprüche 11 bis 15, dadurch gekennzeichnet, dass das Stanzbiegeteil (26) ringförmig ausgebildet ist und zwei konzentrische Schenkel (27, 28) und einen diese miteinander verbindenden Steg (29) aufweist.16. Ball pin according to one of the preceding claims 11 to 15, characterized in that the stamped and bent part (26) is annular and has two concentric legs (27, 28) and a web (29) connecting them.
17. Kugelzapfen nach Anspruch 16, dadurch gekennzeichnet, dass der innere Schenkel (27) in eine Kunststoffhülse (30) eingebettet ist.17. Ball pin according to claim 16, characterized in that the inner leg (27) is embedded in a plastic sleeve (30).
18. Kugelzapfen nach Anspruch 17, dadurch gekennzeichnet, dass der Magnet (13) in der Kunststoffhülse (30) angeordnet ist.18. Ball stud according to claim 17, characterized in that the magnet (13) is arranged in the plastic sleeve (30).
19. Kugelzapfen nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Kugelzapfen zumindest im Bereich der Ausnehmung aus einem ferromagnetischen Material, insbesondere aus einem ferromagnetischen Stahl besteht.19. Ball pin according to one of the preceding claims, characterized in that the ball pin consists of a ferromagnetic material, in particular a ferromagnetic steel, at least in the region of the recess.
20. Kugelzapfen nach Anspruch 19, dadurch gekennzeichnet, dass der Kugelzapfen vollständig aus einem ferromagnetischen Material, insbesondere aus einem ferromagnetischen Stahl besteht.20. Ball pin according to claim 19, characterized in that the ball pin consists entirely of a ferromagnetic material, in particular of a ferromagnetic steel.
21. Kugelgelenk für ein Kraftfahrzeug, mit einem Kugelgelenkgehäuse (5) und einem darin drehbar und schwenkbar gelagerten, einen Zapfen (2) und eine mit diesem verbundene Gelenkkugel (1) aufweisenden Kugelzapfen (3), in welchem eine Ausnehmung (12) mit einem darin angeordneten Magneten (13) vorgesehen ist, dadurch gekennzeichnet, dass zwischen der Mantelfläche (14) des Magneten (13) und der Innenwandung (15) der Ausnehmung (12) ein Zwischenraum (17) ausgebildet ist, der mit einem nichtmagnetischen Werkstoff (16) zum Festlegen des Magneten (13) gefüllt ist. 21. Ball joint for a motor vehicle, with a ball joint housing (5) and a rotatably and pivotably mounted therein, a pin (2) and a joint ball (1) connected to this ball pin (3), in which a recess (12) with a A magnet (13) arranged therein is provided, characterized in that an intermediate space (17) is formed between the outer surface (14) of the magnet (13) and the inner wall (15) of the recess (12), which is made of a non-magnetic material (16 ) is filled to fix the magnet (13).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10341466A DE10341466B4 (en) | 2003-09-05 | 2003-09-05 | ball pin |
PCT/DE2004/001867 WO2005026563A1 (en) | 2003-09-05 | 2004-08-23 | Ball stud |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1660781A1 true EP1660781A1 (en) | 2006-05-31 |
Family
ID=34258505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04762707A Withdrawn EP1660781A1 (en) | 2003-09-05 | 2004-08-23 | Ball stud |
Country Status (7)
Country | Link |
---|---|
US (3) | US20060228167A1 (en) |
EP (1) | EP1660781A1 (en) |
JP (1) | JP4373440B2 (en) |
KR (1) | KR20060056903A (en) |
CN (1) | CN100432456C (en) |
DE (1) | DE10341466B4 (en) |
WO (1) | WO2005026563A1 (en) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10341466B4 (en) * | 2003-09-05 | 2009-12-03 | Zf Friedrichshafen Ag | ball pin |
DE10350640B4 (en) * | 2003-10-29 | 2005-11-17 | Zf Friedrichshafen Ag | Ball joint for a motor vehicle |
DE102005027826B3 (en) * | 2005-06-15 | 2007-01-18 | Zf Friedrichshafen Ag | Ball joint with sensor device and method for measuring wear |
DE102005028501A1 (en) * | 2005-06-17 | 2007-01-04 | Zf Friedrichshafen Ag | Suspension for a vehicle |
US8482523B2 (en) * | 2005-08-17 | 2013-07-09 | Sauer-Danfoss Inc. | Magnetic control device |
US20070040803A1 (en) * | 2005-08-17 | 2007-02-22 | Sauer-Danfoss Inc. | Method of joining a sintered magnet to a pivot arm |
US8122783B2 (en) * | 2008-02-22 | 2012-02-28 | Sauer-Danfoss Inc. | Joystick and method of manufacturing the same |
DE102008000472A1 (en) * | 2008-02-29 | 2009-09-24 | Zf Friedrichshafen Ag | Suspension for a vehicle |
DE102008000996A1 (en) * | 2008-04-04 | 2010-01-14 | Zf Friedrichshafen Ag | ball joint |
CN201518816U (en) * | 2009-10-27 | 2010-07-07 | 齐威国际股份有限公司 | Omnidirectional support crutch structure |
DE102010024351B4 (en) * | 2010-06-18 | 2015-04-02 | Invenio Gmbh Engineering Services | Ball joint and method for mounting a ball joint |
DE102010030762A1 (en) * | 2010-06-30 | 2012-01-05 | Zf Friedrichshafen Ag | Device for measuring bearing clearance of ball-and-socket joint mounted in landing gears of vehicle, has measurement instrument comprising magnetic field-sensitive sensor secured to releasable magnets outside housing |
US8956068B2 (en) * | 2011-01-05 | 2015-02-17 | King Fahd University Of Petroleum And Minerals | Kinematic platform |
US20120207536A1 (en) * | 2011-02-11 | 2012-08-16 | GM Global Technology Operations LLC | Anti-corrosion coating for ball joint |
USD734746S1 (en) | 2011-05-31 | 2015-07-21 | Nite Ize, Inc. | Phone kit |
US8602376B2 (en) * | 2011-05-31 | 2013-12-10 | Nite Ize, Inc. | Multi-positional mount for personal electronic devices with a magnetic interface |
KR101509940B1 (en) * | 2013-10-17 | 2015-04-07 | 현대자동차주식회사 | Transmission lever apparatus of electronic manual transmission for vehicle |
US10357678B2 (en) * | 2015-02-05 | 2019-07-23 | Bryant Brown | Magnetic exercise anchor |
US10330143B2 (en) * | 2015-03-04 | 2019-06-25 | Clayton Kraatz | Serviceable joint with removable race |
DE102016215416A1 (en) * | 2016-08-17 | 2018-02-22 | Zf Friedrichshafen Ag | Sensor device for a ball joint |
DE102017208410B3 (en) * | 2017-05-18 | 2018-08-16 | Zf Friedrichshafen Ag | ball joint |
CN107327472A (en) * | 2017-08-29 | 2017-11-07 | 四川望锦机械有限公司 | A kind of automobile spherical hinge structure for improving backlash compensation sensitivity |
DE102017219584A1 (en) * | 2017-11-03 | 2019-05-09 | Zf Friedrichshafen Ag | Magnetic field sensor and method for mounting a magnet |
US11473615B2 (en) * | 2018-06-27 | 2022-10-18 | Synergy Manufacturing, Inc. | Ball joint assembly |
US11448246B2 (en) * | 2018-07-26 | 2022-09-20 | Hewlett-Packard Development Company, L.P. | Magnetic multiple axis mounts |
DE102019204658A1 (en) * | 2019-04-02 | 2020-10-08 | Zf Friedrichshafen Ag | Closure element for a ball joint and ball joint with such a closure element |
DE102020200678B4 (en) | 2020-01-22 | 2024-05-16 | Zf Friedrichshafen Ag | Joint body for forming a ball joint, ball joint for a chassis of a motor vehicle with such a joint body and method for producing such a joint body and/or such a ball joint |
US11215221B1 (en) | 2020-08-27 | 2022-01-04 | Musashi Auto Parts Canada Inc. | Ball joint assembly and method of assembly and ball joint compression ring |
KR20240059442A (en) | 2022-10-27 | 2024-05-07 | 유원하이테크(주) | Manufacturing method for ball stud of vehicle |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB705981A (en) * | 1951-04-07 | 1954-03-24 | Simp Soc It Meccanica Prec E | Improvements in or relating to methods of assembling magnetic plugs |
FR1126255A (en) * | 1955-06-17 | 1956-11-19 | Magnetic caps for housings | |
GB2023354A (en) * | 1978-06-16 | 1979-12-28 | Hitachi Ltd Electro | Magnetci pulse generator |
DE3231575A1 (en) * | 1981-09-01 | 1983-03-10 | Aktiebolaget Svenska Elektromagneter, 66200 Åmål | Magnetic inductor flywheel and method for its production |
US4763092A (en) * | 1987-04-10 | 1988-08-09 | Kazuyuki Tomita | Magnetic filter |
JPH11325132A (en) * | 1998-05-19 | 1999-11-26 | Hitachi Chem Co Ltd | Disk brake pad back plate, and disk brake pad using the same |
GB2364539A (en) * | 2000-07-10 | 2002-01-30 | Baker Hughes Inc | Downhole magnetic retrieval apparatus |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1184624A (en) * | 1982-01-13 | 1985-03-26 | Yoshimitsu Ishitobi | Joystick controller using magnetosensitive elements with bias magnets |
EP0477098B1 (en) * | 1990-09-18 | 1996-06-26 | Fujitsu Limited | Cursor displacement control device for a computer display |
DE4309226A1 (en) * | 1993-03-23 | 1994-09-29 | Hella Kg Hueck & Co | Vehicle level sensor |
EP0916858B1 (en) * | 1997-06-06 | 2003-11-12 | Thk Co. Ltd. | Method of manufacturing a ball joint |
US5969520A (en) * | 1997-10-16 | 1999-10-19 | Sauer Inc. | Magnetic ball joystick |
JP4722252B2 (en) * | 1999-09-22 | 2011-07-13 | 富士通コンポーネント株式会社 | Coordinate input device |
JP2002007059A (en) * | 2000-06-27 | 2002-01-11 | Nagano Fujitsu Component Kk | Device for inputting coordinates |
JP2002149336A (en) * | 2000-11-09 | 2002-05-24 | Nagano Fujitsu Component Kk | Coordinate input device |
JP4121730B2 (en) * | 2001-01-19 | 2008-07-23 | 富士通コンポーネント株式会社 | Pointing device and portable information device |
DE10110738C5 (en) * | 2001-03-01 | 2008-06-05 | ZF Lemförder GmbH | Ball joint, device for controlling operating parameters of a motor vehicle, steering linkage, tie rod and method for producing a ball joint |
US20020189143A1 (en) * | 2001-06-14 | 2002-12-19 | Haggard William Luther | Banner display system |
DE10134259A1 (en) * | 2001-07-18 | 2003-02-06 | Zf Lemfoerder Metallwaren Ag | Ball joint with integrated angle sensor |
DE10139564A1 (en) * | 2001-08-10 | 2003-02-20 | Audi Ag | Ball-and-socket joint for use in car suspension systems has steel ball and shaft and socket made of material with smaller E-modulus which is reinforced with steel pins |
DE10140683A1 (en) * | 2001-08-24 | 2003-03-06 | Zf Lemfoerder Metallwaren Ag | ball joint |
JP3934394B2 (en) * | 2001-10-30 | 2007-06-20 | アルプス電気株式会社 | Haptic input device |
DE10161671A1 (en) * | 2001-12-14 | 2003-06-26 | Zf Lemfoerder Metallwaren Ag | Ball-and-socket joint for moving gear of vehicle has ball pivot arranged in housing at which locking element is provided to which electronic component is fixed |
DE10243399B4 (en) * | 2002-09-18 | 2006-10-05 | ZF Lemförder Metallwaren AG | Turning and / or tilt angle detection device for a ball joint |
US6777928B2 (en) * | 2002-12-03 | 2004-08-17 | Delphi Technologies, Inc. | Rotary magnetic position sensor having pole differentiated magnets |
US7261487B2 (en) * | 2003-07-31 | 2007-08-28 | Trw Automotive U.S. Llc | Composite ball joint bearing for a ball joint assembly |
DE10338833B4 (en) * | 2003-08-21 | 2005-12-22 | Zf Friedrichshafen Ag | Ball joint with swivel angle sensor |
DE10339126B4 (en) * | 2003-08-22 | 2009-04-02 | Zf Friedrichshafen Ag | Ball joint with angle sensor |
DE10341466B4 (en) * | 2003-09-05 | 2009-12-03 | Zf Friedrichshafen Ag | ball pin |
US7036233B1 (en) * | 2004-09-21 | 2006-05-02 | Oldenburg Group, Inc. | Pivot linkage including a non-contact, rotational angle measurement sensor for heavy machinery |
US7159890B2 (en) * | 2004-10-06 | 2007-01-09 | ZF Lemförder Metallwaren AG | Trailer hitch for a motor vehicle |
DE102005032145A1 (en) * | 2005-07-07 | 2007-01-11 | Zf Friedrichshafen Ag | Joint for a motor vehicle |
-
2003
- 2003-09-05 DE DE10341466A patent/DE10341466B4/en not_active Expired - Fee Related
-
2004
- 2004-08-23 JP JP2006525035A patent/JP4373440B2/en not_active Expired - Fee Related
- 2004-08-23 US US10/566,123 patent/US20060228167A1/en not_active Abandoned
- 2004-08-23 WO PCT/DE2004/001867 patent/WO2005026563A1/en active Application Filing
- 2004-08-23 EP EP04762707A patent/EP1660781A1/en not_active Withdrawn
- 2004-08-23 CN CNB2004800254021A patent/CN100432456C/en not_active Expired - Fee Related
- 2004-08-23 KR KR1020057025349A patent/KR20060056903A/en active IP Right Grant
-
2008
- 2008-02-07 US US12/027,601 patent/US20080124167A1/en not_active Abandoned
-
2009
- 2009-06-02 US US12/476,545 patent/US7841799B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB705981A (en) * | 1951-04-07 | 1954-03-24 | Simp Soc It Meccanica Prec E | Improvements in or relating to methods of assembling magnetic plugs |
FR1126255A (en) * | 1955-06-17 | 1956-11-19 | Magnetic caps for housings | |
GB2023354A (en) * | 1978-06-16 | 1979-12-28 | Hitachi Ltd Electro | Magnetci pulse generator |
DE3231575A1 (en) * | 1981-09-01 | 1983-03-10 | Aktiebolaget Svenska Elektromagneter, 66200 Åmål | Magnetic inductor flywheel and method for its production |
US4763092A (en) * | 1987-04-10 | 1988-08-09 | Kazuyuki Tomita | Magnetic filter |
JPH11325132A (en) * | 1998-05-19 | 1999-11-26 | Hitachi Chem Co Ltd | Disk brake pad back plate, and disk brake pad using the same |
GB2364539A (en) * | 2000-07-10 | 2002-01-30 | Baker Hughes Inc | Downhole magnetic retrieval apparatus |
Also Published As
Publication number | Publication date |
---|---|
JP4373440B2 (en) | 2009-11-25 |
CN100432456C (en) | 2008-11-12 |
US7841799B2 (en) | 2010-11-30 |
KR20060056903A (en) | 2006-05-25 |
WO2005026563A1 (en) | 2005-03-24 |
DE10341466A1 (en) | 2005-04-07 |
JP2007504406A (en) | 2007-03-01 |
US20090238637A1 (en) | 2009-09-24 |
US20060228167A1 (en) | 2006-10-12 |
CN1846073A (en) | 2006-10-11 |
US20080124167A1 (en) | 2008-05-29 |
DE10341466B4 (en) | 2009-12-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE10341466B4 (en) | ball pin | |
EP0346335B1 (en) | Measurement detector | |
WO2007079996A1 (en) | Magnet module for fixing to a shaft | |
DE102012206537A1 (en) | Ball joint for a vehicle | |
EP2366096A1 (en) | Kit for an electric motor having a rotary encoder | |
DE102007050258A1 (en) | Ring magnet for use in rotation angle or torque sensor arrangement at steering shaft in motor vehicle, has magnet particles located on carrier, and geometry embedded with recess into casing, which encloses areas in direction of surface | |
EP0417663B1 (en) | Ball joint with a seal boot for automotive vehicle | |
WO2009010053A1 (en) | Hybrid control arm for a vehicle | |
DE10039588B4 (en) | Transducer device | |
DE19841410C1 (en) | Ball joint | |
EP1003979A1 (en) | Ball joint | |
DE102014225856A1 (en) | sensor device | |
WO2021122419A1 (en) | Decorative functional component having a transparent partial surface | |
DE102011118773B4 (en) | Device for non-contact detection of the relative position of two parts that can be moved relative to one another | |
DE10005988A1 (en) | Ball and socket linkage comprises a housing with a recess, a pivot pin, a bearing shell, sealing bellows, and ball surface protection. | |
DE102004061057C5 (en) | Ball joint connection between a pin and a fastening part | |
DE29901548U1 (en) | proximity switch | |
DE102006013046A1 (en) | Joint or bearing arrangement has joint pin, head region movable in relation to receiving joint cup, and through opening that is left in region of housing receiving joint cup | |
DE4305341C2 (en) | Pivot joint | |
DE4341087A1 (en) | Moisture proof electromechanical compact fluid flow valve actuator stage for installation in vehicles | |
DE102014220974A1 (en) | Sensor arrangement and method for producing a sensor arrangement | |
DE69103118T2 (en) | Improvements to encapsulated sensors, in particular to speed sensors for motor vehicles. | |
DE19843522B4 (en) | Encapsulated explosion-proof electromagnet | |
DE102011076160B4 (en) | Bearing shell for a ball joint | |
EP1525462B1 (en) | Method for producing ph probes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |
|
17P | Request for examination filed |
Effective date: 20051209 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20070327 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20110119 |