EP1733846A2 - Extracteur de rotule - Google Patents

Extracteur de rotule Download PDF

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Publication number
EP1733846A2
EP1733846A2 EP06011889A EP06011889A EP1733846A2 EP 1733846 A2 EP1733846 A2 EP 1733846A2 EP 06011889 A EP06011889 A EP 06011889A EP 06011889 A EP06011889 A EP 06011889A EP 1733846 A2 EP1733846 A2 EP 1733846A2
Authority
EP
European Patent Office
Prior art keywords
bearing
pressing
lever
support
support lever
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.)
Granted
Application number
EP06011889A
Other languages
German (de)
English (en)
Other versions
EP1733846B1 (fr
EP1733846A3 (fr
Inventor
Horst Klann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Klann Spezial Werkzeugbau GmbH
Original Assignee
Klann Spezial Werkzeugbau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Klann Spezial Werkzeugbau GmbH filed Critical Klann Spezial Werkzeugbau GmbH
Publication of EP1733846A2 publication Critical patent/EP1733846A2/fr
Publication of EP1733846A3 publication Critical patent/EP1733846A3/fr
Application granted granted Critical
Publication of EP1733846B1 publication Critical patent/EP1733846B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/023Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws

Definitions

  • the invention relates to a device for pressing a pivot pin of a ball joint from the bearing eye of an associated axle of a motor vehicle axle, consisting of a pressing lever and a support lever, which are pivotally connected to each other via a bearing pin, wherein the pressing lever has a pressing portion, which in use a receiving element of Support lever is arranged opposite to the bearing eye and wherein the pressing lever has a pressing portion relative to the bearing bolt opposite actuating portion, which is supported in the insert for carrying out the relative pivoting movement for expressing the pivot pin via a pressing member on a support portion of the support lever.
  • ball joints are used in the vehicle industry in the area of the chassis.
  • such ball joints are used for the articulated connection of a control arm of the chassis with a steering knuckle or a spring shock absorber leg.
  • ball joints are also used as a hinge connection between the tie rod and the steering lever of a steerable axles.
  • Such ball joints have this usually a conical pivot pin on which sit in a correspondingly conical bore of a bearing eye, for example, the steering lever or the steering knuckle.
  • this pivot pin usually serves a corresponding mounting nut, is pulled through the tightening forces of the conical pivot pin in the conical bore and thus a tight fit is reached.
  • different constructions are known. So here is an example of the FR 2 134 741 or even the DE 44 37 046 C2 directed.
  • the pressing lever can be formed in its cross section with only a limited strength, so that in extremely tight joint pin and thus high pressing forces deformation or even destruction of the pressing lever is not excluded.
  • the pressing portion of the pressing lever forms a flat pressing surface, by means of which the pressing portion rests on the pivot pin during Abdrückvorganges, so that a precise application of the pressing lever on the pivot pin is at least difficult.
  • the invention is accordingly an object of the invention to design a device of the generic type for pressing a pivot pin from the bearing eye of an associated axle component such that it can on the one hand transmit high pressing forces and on the other hand enables the most precise possible application of the pressing portion of the pressing lever on the pivot pin.
  • the pressing lever has a U-shaped cross-section in the region of its pressing section and is provided with two ribs directed towards the receiving element, which receive the pivot pin between them when pressed.
  • the embodiment of the invention provides a device which is extremely easy to handle for pushing a pivot pin out of the bearing eye of an associated axle component.
  • two ribs are provided on the pressing portion of the pressing lever, which are directed towards the opposite receiving element and record the pivot pin between them when pressed. At the same time these ribs cause an extremely high stiffening of the pressing section, so that deformation is reliably avoided even at high extrusion forces.
  • these ribs may extend parallel to each other and have a distance from each other which is greater than the diameter of the articulated pin to be expressed.
  • the pressing lever is approximately S-shaped and the pressing portion of the pressing lever in an approximately parallel orientation of the pressing lever to the support lever a greater distance from the receiving portion of the support lever than the actuating portion of the support portion of the support lever.
  • the actuating portion is U-shaped and two stiffening ribs has, which are arranged on the opposite side of the support portion of the support lever of the actuating portion.
  • a bearing bore is provided, via which the pressing lever is pivotally mounted on the support lever. Since the transition region between the pressing portion and the operating portion has an extremely large cross-section, and the stiffening ribs are arranged on the upper side and are guided to this transition region according to claim 4, a sufficient stability of the entire pressing lever is ensured.
  • the support lever may have two bearing tongues, which are provided with two groups of coaxially extending bearing bores. These groups of bearing bores are arranged at different distances from the support lever in the bearing tongues, so that the pressure lever with its bearing bore at different distances to the support lever can be brought into engagement therewith.
  • a corresponding bearing pin is provided for the pivotable mounting of the pressing lever between the two bearing tongues, which optionally by one of the two groups of bearing bores of the bearing tongues and completely pluggable through the bearing bore of the pressing lever.
  • the support lever has two bearing tongues with two groups of bearing bores running coaxially with each other and additionally that the two groups of bearing bores are arranged at different distances to the support lever in the bearing tongues.
  • a Y-shaped intermediate piece is further provided according to claim 7, which is arranged with a bearing block between the bearing tongues and fixedly connected to the bearing tongues and interchangeable.
  • various mounting pins may also be provided.
  • this Y-shaped intermediate piece for pivotally receiving the pressing lever has two bearing legs provided with bearing bores, between which the pressing lever can be inserted.
  • the bearing legs may be provided according to claim 8 with two groups of coaxially extending bearing bores, wherein the two groups of bearing bores are arranged at different distances to the support lever in the bearing legs.
  • the bearing block of the intermediate piece according to claim 9 two through holes whose distance from the distance of the two groups of bearing bores the bearing tongues corresponds, wherein the bearing block is fixedly connected by two mounting pins with the bearing tongues.
  • a compression screw is provided as a pressing member, which is screwed into an internal thread in the region of the free end of the support portion of the support lever.
  • this pressing screw presses when pressing the pivot pin against the actuating portion of the pressing lever, whereby a pivoting movement of the pressing lever is effected.
  • the internal thread is part of a screwed into the free end of the support portion threaded bushing.
  • the support portion is formed reinforced in its free end portion for receiving the pressing device.
  • a threaded bush with a larger outer diameter in this end region of the support portion, so that in particular for applying higher pressing forces a corresponding extruder screw with a larger diameter can be inserted into the threaded bushing.
  • the internal thread of the support section accommodating the threaded bush can itself be dimensioned such that other pressing members, such as, for example, a hydraulic press system, can be coupled to the support section of the support lever.
  • Fig. 1 is a bottom perspective view of a pressing lever 1 can be seen, which has a pressing section 2 in its left, front third of its length. At this pressing section 2 is followed by a transition region 3, in which a bearing bore 4 is provided.
  • the press section 1 opposite to the press section 2 with respect to the transition region 3 has an actuating section 5 extending over approximately two thirds of its length.
  • This actuating portion 5 extends substantially parallel to the pressing portion 2 and is arranged offset to the pressing portion 2 transversely to the L josserstrekkung at the transition region 3. This results in an approximately S-shaped basic shape for the entire press lever 1, as can be seen, for example, from FIGS. 2, 5 and 6.
  • the actuating portion 5 forms, in particular in the region of its free end, a pressure surface 6, which is formed substantially flat.
  • this pressure surface 6 may be provided with an approximately dome-shaped recess 12 (shown in dashed lines), in which the pressing member is supported in use.
  • the pressing section 2 forms on the underside a substantially flat pressing surface 7, which is bounded laterally by two ribs 8 and 9.
  • the two ribs 8 and 9 extend, as can be seen in FIG. 1, parallel to one another and, in the present exemplary embodiment, are formed laterally on the pressing section 2.
  • the two ribs 8, 9 extend in the longitudinal direction of the free End of the pressing section 2 to about the transition region 3 of the pressing lever 1.
  • the pressing section 2 forms a U-shaped cross section, so that at the same time the bending stiffness of the pressing section 2 is increased considerably.
  • these ribs 8 and 9 serve in use for receiving a pendulum hinge pin of a ball joint, as will be explained later.
  • FIG. 2 perspective top view can be seen that the pressing lever 1, starting from the transition region 3 to the free end of its actuating portion 5 on its two ribs 8 and 9 of the pressing section 2 opposite top two stiffening ribs 10 and 11 has.
  • the actuating portion 5 has a substantially U-shaped cross-section.
  • the S-shaped shape of the pressing lever 1 can be seen from FIG. 2. Since the stiffening ribs 10 and 11 extend from the free end of the actuating portion 5 to the transition region 3, in particular, this transition region 3 is extremely stable, so that despite the arrangement of the bearing bore 4 in this area a sufficiently large flexural rigidity of the entire pressing lever 1 is ensured ,
  • the pressing lever 1 is pivotally engageable via its bearing bore 4 with a support lever 15 in engagement.
  • a support lever 15 is shown in perspective in Fig. 3.
  • To attach this support lever 15 to a bearing eye has this in his in Fig. 3 front, right end portion of a receiving element 16, which fork-shaped is trained.
  • the fork legs 17 formed thereby each have a flat support surface 19 or 20 for supporting the bearing eye.
  • the configuration of the receiving element 16 is commonly known from the prior art.
  • bearing tongues 22 and 23 extend parallel to the longitudinal extension of the entire support lever 15 and at right angles to its surface 24. Furthermore, it can be seen from FIG. 3 that the bearing tongues 22 and 23 each have two bearing bores 25, 27 and 26, 28. These bearing bores 26 to 28 of the bearing tongues 22 and 23 are assigned to one another in groups, wherein the group of bearing bores 25 and 26 to the surface 24 of the support lever 15 has a greater distance than the group of bearing bores 27 and 28. This is in the mounted state of the pressing lever 1 between the two bearing tongues 22 and 23, a different distance of the pressing lever 1 from the support lever 15 adjustable.
  • a support portion 30 In the longitudinal direction in extension to the receiving element 16 and the transition region 21 of the support lever 15 forms a support portion 30, which is provided in its free end region with a receiving thread 31.
  • This support portion 30 extends in the longitudinal direction of the support lever 15 about over two thirds of the length of the support lever 15.
  • the support portion 30 in the region of the receiving thread 31 formed reinforced and in particular has a greater width than the actual support section 30.
  • the receiving thread 31 is provided with a larger diameter, so that larger pressing forces can be absorbed via this receiving thread 31.
  • a bearing pin 32 is provided which, depending on the desired arrangement of the pressing lever 1 on the support lever 15, by the group of bearing bores 25, 26 or 27, 28 and the bearing bore 4 of the pressing lever can be inserted therethrough.
  • this bearing pin 32 has a radially enlarged head part 33, which ensures that this bearing pin 32 is not accidentally pushed through the bearing bores 25, 26 and 27, 28, respectively.
  • this has in its head portion 33 opposite end portion a spring-loaded detent ball 34 which protrudes radially from the bearing pin 32 and against a spring force when pushed through the bearing bores 25, 26 and 27, 28 can be pressed into the bearing pin 32.
  • the detent ball 34 After complete insertion of the bearing pin 32, the detent ball 34 again passes radially outwards, so that the bearing pin 32 is secured.
  • the support lever 15 may be provided in case of need on its top and / or bottom in particular in the region of its support portion 30 with further stiffening ribs, of which in Fig. 5 is an exemplary shown in dashed lines. Only one stiffening rib can be sufficient. If a plurality of stiffening ribs are provided, then these may be arranged both parallel to each other or else crossed or in any other suitable shape and arrangement.
  • a threaded bushing 35 is further provided, which has an external thread 36, with which the threaded bush 35 in the receiving thread 31 of the support portion 30 can be screwed. Furthermore, this threaded bush 35 has a continuous internal thread 37. This continuous internal thread 37 serves to receive a compression screw 38, which for this purpose has a threaded shaft 39 provided with an external thread. In its lower end region, the compression screw 38 is provided with a drive hexagon 40, to which a rounded pressure pin 41 connects axially outwards.
  • the pressing screw 38 In axial extension to the threaded shaft 39, the pressing screw 38 has a second rounded pressure pin 42, so that the pressing screw 38 can be screwed from top to bottom or from bottom to top through the internal thread 37 of the threaded bushing 35.
  • the two pressure pins 41, 42 - depending on the orientation of the pressing screw 38 - serve to support the Presschraube 38 on the lower pressure surface 6 of the pressing lever. 1
  • Fig. 4 shows an intermediate piece 45, through which the distance between the insert lever 1 and the support lever 15 is additionally variable in use.
  • the intermediate piece 45 is Y-shaped and has to be coupled to the Support lever 15 and its bearing tongues 22 and 23 a bearing block 46, which is provided with two through holes 47 and 48.
  • These through holes 47 and 48 are, as can be seen from Fig. 4, arranged one above the other, wherein the distance corresponds to the distance of the groups in the bearing tongues 22 and 23 arranged bearing bore 25, 26 and 27, 28.
  • two mounting pins 49 and 50 are provided in the present embodiment, which are of identical design as the bearing pin 32 of FIG.
  • the intermediate piece 45 has two mutually parallel bearing legs 51 and 52, which are likewise provided with two coaxially extending groups of bearing bores 53, 54 and 55, 56 in accordance with the design of the two bearing tongues 22 and 23 ,
  • Fig. 5 shows a vertical section of the device according to the invention with its pressing lever 1 and its support lever 15 in the mounted state. It can be seen that in the starting position shown in Fig. 5, the pressing lever 1 with its pressing portion 2 and its operating portion 5 is approximately parallel to the support lever 15 with its receiving element 16 and its support portion 30.
  • the pressing lever 1 is pivotable about its bearing bore 4 and the bearing pin 32 between the two bearing tongues 22 and 23 via the upper group of bearing bores 25, 26 stored.
  • a ball joint 60 with its pivot pin 61 is shown in phantom lines in FIG. 5 by way of example.
  • the ball joint 60 is seated in the present embodiment with its pivot pin 61 fixed in a bearing eye 63 of a steering lever 62 of a motor vehicle axle.
  • the support lever 15 is attached with its receiving element 16 on the underside between the ball joint 60 and the steering lever 62.
  • the pivotal position of the pressing lever 1 with respect to the support lever 15 is selected such that the pressing lever 1 rests with the pressing surface 7 of its pressing section 2 on the upper side of the pivot pin 61.
  • the receiving element 16 of the support lever 15 rests with its two support surfaces 19 and 20 on the underside of the steering lever 62 in the region of the bearing eye 63 formed by this steering lever 62 in a flat manner.
  • the threaded bushing 35 is screwed with its external thread 36 into the receiving thread 31 of the support section 30 of the support lever 15.
  • the compression screw 38 is screwed with its threaded shaft 39 from bottom to top and lies with its upper pressure pin 42 on the underside of the pressure surface 6 of the actuating portion 5 of the pressing lever 1 at.
  • Fig. 6 shows the pressing lever 1 together with the support lever 15 and the intermediate piece 45 in the assembled state in vertical section. It can be seen that the intermediate piece 45 is received on the two mounting pins 49 and 50 fixedly between the two bearing tongues 22 and 23 of the support lever 15.
  • the pressing lever is pivotally mounted via its bearing bore 4 and the bearing pin 32 in the upper group of bearing bores 53 and 54 of the two bearing legs 51 and 52. Further, in the embodiment of Fig. 6 in the support portion 30 of the support lever 15 also the threaded bush 35 is inserted. Due to the greater distance of the pressing lever 1 from the support lever 15 is in this embodiment a longer embodiment of a compression screw 38/1 used, which has a corresponding extended threaded shaft 39/1.
EP06011889A 2005-06-17 2006-06-09 Extracteur de rotule Not-in-force EP1733846B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202005009669U DE202005009669U1 (de) 2005-06-17 2005-06-17 Kugelgelenk-Abdrücker

Publications (3)

Publication Number Publication Date
EP1733846A2 true EP1733846A2 (fr) 2006-12-20
EP1733846A3 EP1733846A3 (fr) 2008-11-05
EP1733846B1 EP1733846B1 (fr) 2011-05-11

Family

ID=34983496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06011889A Not-in-force EP1733846B1 (fr) 2005-06-17 2006-06-09 Extracteur de rotule

Country Status (3)

Country Link
EP (1) EP1733846B1 (fr)
AT (1) ATE508843T1 (fr)
DE (1) DE202005009669U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009285827A (ja) * 2008-05-26 2009-12-10 Wirtgen Gmbh チゼルを取り外すための工具
US20120272499A1 (en) * 2011-04-28 2012-11-01 Chad Schley Pitman Arm Removal Tool and Method
US11530718B1 (en) 2021-10-15 2022-12-20 Snap-On Incorporated Joint press

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007011248U1 (de) * 2007-08-10 2007-10-18 Hazet-Werk Hermann Zerver Gmbh & Co. Kg Kugelgelenk-Abzieher

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2134741A5 (fr) * 1971-04-19 1972-12-08 Facom
DE4437046A1 (de) * 1993-12-18 1995-06-22 Horst Klann Achstraggelenk-Auspreßvorrichtung
DE29806883U1 (de) * 1998-04-17 1998-07-09 Justus Schmidt Gmbh & Co Kg Ne Ausdrückwerkzeug

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2134741A5 (fr) * 1971-04-19 1972-12-08 Facom
DE4437046A1 (de) * 1993-12-18 1995-06-22 Horst Klann Achstraggelenk-Auspreßvorrichtung
DE29806883U1 (de) * 1998-04-17 1998-07-09 Justus Schmidt Gmbh & Co Kg Ne Ausdrückwerkzeug

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009285827A (ja) * 2008-05-26 2009-12-10 Wirtgen Gmbh チゼルを取り外すための工具
US20120272499A1 (en) * 2011-04-28 2012-11-01 Chad Schley Pitman Arm Removal Tool and Method
US9085068B2 (en) * 2011-04-28 2015-07-21 Schley Products, Inc. Pitman arm removal tool and method
US11530718B1 (en) 2021-10-15 2022-12-20 Snap-On Incorporated Joint press

Also Published As

Publication number Publication date
ATE508843T1 (de) 2011-05-15
EP1733846B1 (fr) 2011-05-11
DE202005009669U1 (de) 2005-09-08
EP1733846A3 (fr) 2008-11-05

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