EP1033206A2 - Vorrichtung für Federspanner zum Ausrichten eines Federtellers - Google Patents

Vorrichtung für Federspanner zum Ausrichten eines Federtellers Download PDF

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Publication number
EP1033206A2
EP1033206A2 EP00100233A EP00100233A EP1033206A2 EP 1033206 A2 EP1033206 A2 EP 1033206A2 EP 00100233 A EP00100233 A EP 00100233A EP 00100233 A EP00100233 A EP 00100233A EP 1033206 A2 EP1033206 A2 EP 1033206A2
Authority
EP
European Patent Office
Prior art keywords
spring
spring plate
gripper element
gripper
alignment
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
EP00100233A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1033206A3 (de
EP1033206B1 (de
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 Tools Ltd
Original Assignee
Klann Tools Ltd
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 Tools Ltd filed Critical Klann Tools Ltd
Publication of EP1033206A2 publication Critical patent/EP1033206A2/de
Publication of EP1033206A3 publication Critical patent/EP1033206A3/de
Application granted granted Critical
Publication of EP1033206B1 publication Critical patent/EP1033206B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/30—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs
    • B25B27/302—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs coil springs other than torsion coil springs
    • B25B27/304—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs coil springs other than torsion coil springs by compressing coil springs

Definitions

  • the invention relates to a spring tensioner for tensioning a Coil spring, which is between an upper and a lower spring plate of a shock absorber leg from Motor vehicles under tension is included a first and a second gripper element, which is coaxial via a guide tube of the spring tensioner led to each other and by means of an actuator in Axial direction of the guide tube can be displaced relative to one another are, the first gripper element approximately annular trained and for tensioning the coil spring the upper spring plate can be put on, or being the first Gripper element is approximately fork-shaped and radial attachable from the outside to a spring turn of the coil spring and the second gripper element is approximately fork-shaped formed and radially from the outside on a spring turn the coil spring is attachable.
  • a spring tensioner of the generic type is known (EP 0 349 776 B1), in which in a cylindrical guide tube a threaded spindle rotatably mounted as an actuator is.
  • a first gripper element is by means of a cylindrical holding element at one end of the guide tube fixedly attached, the gripper element interchangeable with the holding element via a coupling piece is coupled.
  • a second gripper element is over a second coupling piece with a second holding element interchangeably connected. The second holding element is together with the second gripper element by pressing the Threaded spindle axially along the guide tube for clamping a coil spring slidable.
  • the first gripper element has the shape of a closed, L-shaped profiled support ring, which on the top on the upper spring plate of a shock absorber leg is attachable.
  • the inner support surface of the support ring, on which the spring plate during the clamping process System comes, can have several centering levels, so that different sizes with the same gripper element Spring plate or adapter or insert rings added can be.
  • the second gripper element is approximately fork-shaped and also essentially has a cross section L-shaped profile.
  • the two fork legs this Gripper element form an approximately horseshoe-shaped Ring segment that is opposite to its coupling element lying side is open and its contact surface an approximately helical pitch in the circumferential direction having.
  • the two gripper elements are on the guide tube arranged such that its central connecting axis runs parallel to the longitudinal central axis of the guide tube.
  • Coil spring with its longitudinal central axis in the aligned essentially parallel to the guide tube.
  • the coil spring becomes the first gripper element placed on the upper spring plate and the second gripper element with one of the lower spring turns of the Coil spring engaged.
  • the guide tube is moved towards the first gripper element, so that their distance is reduced and the Coil spring shortened and thus tensioned.
  • Such spring tensioners are used to tension coil springs used by shock absorber legs, the upper spring plate a substantially flat top and one has approximately circular outer contour. That this top of the spring plate opposite, lower receiving surface for the top end of the spring is the slope of the top Spring turn adjusted so that one is correct on this Spring turn of the spring plate placed at least approximately always the same angular orientation to the entire coil spring having.
  • the shock absorber legs usually also the lower one, on the damper tube of the shock absorber leg arranged spring plate one of the slope of the lower spring end has adapted contour, can the upper spring plate when correctly on the lower spring plate attached coil spring in a certain Angular alignment aligned with the lower spring plate and the coil spring can be relaxed.
  • the lower bearing eye in a relatively precise angular orientation suitable in a corresponding warehouse be used on the motor vehicle axle.
  • the shock absorber can therefore only be installed if if the angular alignment of the upper spring plate with its fastening devices relative to the lower bearing eye of the shock absorber leg at least approximately correct on the angular position of the corresponding fastening devices and the inventory of the motor vehicle is coordinated.
  • the precision of such angular alignment of the upper spring plate with its mounting devices to the lower bearing eye of the shock absorber leg about the coil spring is very strong from experience of the fitter and also of the manufacturing tolerances depending on the components.
  • spring struts are now known in which between the two spring plates and the associated ends of the coil spring compensation rings are provided. These are balance rings flat to the spring plates. For Receiving the ends of the coil spring have these compensation rings adjusted according to the slope of the spring ends Contours.
  • the spring plates are in turn closed the compensating rings formed flat so that a certain angular alignment of the compensation rings to the Spring plates for optimal support and absorption the coil spring is not necessary and also not possible is. But this is also an angular orientation of the upper spring plate to the lower bearing eye of the shock absorber leg using the known spring tensioner difficult to reach. Even an optical angular alignment the upper spring plate to the lower bearing eye is extremely difficult because the distance between the upper spring plate and the lower bearing eye of the shock absorber leg is very large and therefore their correct angular position to each other is not ascertainable.
  • a spring tensioner of the generic type is known (DE 298 01 172.7 U1), which is particularly suitable for tensioning of coil springs of large pitch, which in spring strut legs are used, is provided.
  • upper spring plates made of sheet steel used which has a receiving ring for the upper Have spring end of the coil spring, the circumferential Contour of the large slope of this end is adapted.
  • This receiving ring forms with its upper outside a helical, offset in the circumferential direction Support flange on which the support ring of the upper, first Gripper element can be placed.
  • the support ring of the first, upper gripper element a the helical course of the support flange adapted support surface so that During the tensioning process, the upper spring plate has a support bracket of at least approximately 180 ° in the support ring of the gripper element.
  • the second gripper element is approximately fork-shaped and is used to tension the Coil spring with a lower spring turn of the coil spring engaged.
  • Through the support angle of approximately 180 ° is an angular orientation of the upper spring plate to the first gripper element and thus to the whole Spring tensioner not possible. So one can Angular alignment of the spring plate to the lower bearing eye of a shock absorber leg, even with exactly on the shock absorber leg positioned spring tensioner when installing the Spring plates together with the coil spring on the shock absorber leg not be carried out.
  • the invention is based on the object To design spring tensioners of the generic type in such a way that a given angular orientation of the top Spring plates of a shock absorber leg relative to it lower bearing eye can be carried out as simply and safely as possible is.
  • the object is achieved in that in Area of the first gripper element for angular alignment of the upper spring plate relative to the first gripper element and at least relative to the entire spring tensioner a positive locking element is provided, which in a predetermined Angular position of the upper spring plate to the first Gripper element with part of the spring plate in the circumferential direction engages positively with little play is feasible.
  • the inventive configuration of the spring tensioner is an angular orientation of the upper spring plate a shock absorber leg with respect to its lower bearing eye can be carried out in a simple manner.
  • This is on upper gripper element of the spring tensioner at least one Form-locking element provided, which with a part of upper spring plate of the shock absorber leg at least in Circumferential direction with little play in positive engagement is feasible.
  • As part of such a spring plate can in particular for mounting on the vehicle body provided fastening devices, such as bores, Threaded bores or threaded pins are used. But also other protruding parts of the spring plate, such as. Stiffening ribs or the like can be used for production a positive connection with the positive locking element of the gripper element can be used.
  • the invention Spring tensioner with that regarding this spring tensioner aligned over its first gripper element Spring plate on the lower spring plate of the shock absorber leg put on.
  • the guide tube runs in this position of the spring tensioner essentially parallel to the axis Damper tube or the entire shock absorber leg and can thus in a simple manner visually in terms of its angular position the lower bearing eye of the shock absorber leg be aligned.
  • This optical alignment of the whole Spring tensioner and thus the upper spring plate is therefore very easy to carry out, since that is parallel guide tube running to the shock absorber leg as a rule approximately in the area of the lower bearing eye of the shock absorber leg ends.
  • the arrangement of the positive locking elements or the form-locking element on the upper, first gripper element is chosen so that essentially one right-angled alignment of the guide tube of the spring tensioner according to the invention for the bearing eye of the spring damper leg an automatically correct angular alignment of the upper spring plate to the bearing eye.
  • the positive locking element can be approximately radial have a receiving groove running to the gripper element, which is directed towards a corresponding axially upward protruding beyond the upper outer surface of the spring plate about cone or strip-shaped element of the Gripper element can be pushed on or plugged on is.
  • a peg-shaped shaped element can, for example be a threaded bolt of the upper spring plate, which is used to attach the shock absorber leg to the body a motor vehicle is provided.
  • Last-shaped Form elements can, for example, stiffening struts in the area of the upper outer surface of the spring plate his.
  • the form-locking element can also be a the upper spring plate has a bore open towards the bottom, which, for example, with a cone-shaped shaped element the spring plate can be brought into engagement.
  • cone-shaped elements can, except as already mentioned above, also be threaded domes of the spring plate, which in corresponding holes when mounting on the Motor vehicle body in a certain, predetermined Angular alignment can be inserted.
  • the upper gripper element should be different designed spring plate can be used, so that Form-locking element, according to claim 5, as a separate component be formed, which in different angular positions can be attached to the gripper element.
  • Form-locking element according to claim 5, as a separate component be formed, which in different angular positions can be attached to the gripper element.
  • they can also be different Arrangements of the molded parts of the spring plate are taken into account be by the form-locking element in a corresponding Angular position attached to the first gripper element becomes.
  • the form-locking element as a sheet metal part according to claim 7 is an extremely inexpensive Manufacturing reached. Furthermore, such a form-locking element made of sheet metal in its shape in simplest type of shape of a spring plate to be aligned customizable.
  • two or more positive locking elements be positioned on the gripper element so that the upper spring plate of a shock absorber leg with respect to a through the longitudinal central axis of the at the lower end of the Defined damper leg arranged bearing eye vertical center plane at substantially rectangular spring tensioner aligned to this central plane in two different angular positions can be arranged, which symmetrical to this center plane of the shock absorber leg are.
  • the upper spring plates are Although identical in design, they have been installed Condition on the vehicle body to the median longitudinal plane the motor vehicle is the same but opposite Angular alignment.
  • shock absorber struts are used in such vehicle types usually parallel to this median longitudinal plane added.
  • the positive locking element at least one, essentially vertically downward Have pegs for angular alignment of the spring plate relative to the gripper element with little play fits into a hole in the spring plate.
  • This Variant of the form-locking element is then used, if the spring plate is not a protruding form element has and through corresponding holes on a Motor vehicle body must be attached.
  • the plug is provided, which makes it possible to align such a spring plate correctly.
  • the plug can be an integral part of the form-locking element or as a separate component be formed by a through hole of the Form-locking element can be inserted through.
  • This configuration is the advantage achieved that only a gripper element for Different spring plates can be used by different Mounting rings with different shapes and / or differently aligned on the mounting ring Interlocking elements can be interchangeably attached to the gripper element are.
  • the mounting ring in different angular positions can be attached to the gripper element. With this configuration, there are also different angular orientations the spring plate with respect to the gripper element and thus the spring plate with respect to the lower one Bearing eye of a shock absorber leg with the same gripper element and the same positive locking element adjustable.
  • This alignment element is also with the down guide tube reaching into the area of the bearing eye the spring tensioner can be brought into a positive connection, so that the entire spring tensioner with its gripper elements for example, precisely at right angles to the lower bearing eye can be aligned. But that also takes the first, upper gripper element has a precise angular position with respect to the entire shock absorber leg and thus also with regard to the lower bearing eye. Because in turn again the upper spring plate over the positive locking elements of the gripper element with respect to this gripper element is precisely aligned with respect to its angular position also a precise alignment of the spring plate with respect the bearing eye of the shock absorber leg at its common Assembly with the coil spring guaranteed.
  • this gripper element in the region of its circumferential outer edge or in the area of its circumferential inner edge have a vertically downward ring web.
  • This ring web can according to claim 12 in the circumferential direction interrupted or continuous.
  • the ring land is designed so that the upper spring plate with little play centered on Gripper element is added.
  • This configuration according to Claim 12 can, for example, with only one provided positive locking element on the gripper element necessary to be about the centered seat of the spring retainer a precise angular alignment of the Ensure spring plates relative to the gripper element.
  • Line marks e.g. in the form of code letters or Like. It is easy for a fitter to recognize which Line marking for a specific vehicle type correct angle alignment of a spring plate is.
  • the positive locking element or can the positive locking elements also part of a separate alignment device his.
  • the alignment device is there provided with a bearing section with which the alignment device with the spring tensioner in Intervention can be brought.
  • the storage section Be U-shaped and in the area of first gripper element or the guide tube on this be attachable. This will automatically align the alignment device is reached relative to the spring tensioner, so that also with the spring plate to be aligned engageable positive locking elements this spring plate inevitably compared to the spring tensioner or align the first gripper element.
  • a spring plate can also be aligned can if a spring tensioner for tensioning the coil spring is used, the first gripper element fork-shaped is formed and with one of the spring turns and not engaged with the spring plate itself becomes. Because such a first gripper element usually when tensioning the coil spring below the spring plate engages in a spring turn is still one Angular alignment of the spring plate using the separate alignment device with its positive locking elements feasible.
  • the alignment device By designing the alignment device as a bent sheet metal part according to claim 16 is an extremely inexpensive Manufacture of the alignment device reached.
  • the Form-locking elements can be designed as plug pins be, which with the mounting holes of a spring plate in a predetermined angular position of the spring plate almost free of play relative to the first gripping element can be brought into engagement.
  • the design is the interlocking elements ultimately from the shape or formation of the spring plate dependent and can also have any other shape, which with a Part of the spring plate to its angular orientation engaged with the spring tensioner is feasible.
  • Fig. 1 shows a first, upper gripper element 1, which for interchangeable mounting on a guide tube
  • Spring tensioner has a mounting cylinder 2, which is provided with a central through hole 3.
  • a spring plate also shown in Fig. 1 4 is the gripper element 1 with an approximately circular shape trained support ring 5, which on the spring plate 4 for tensioning a coil spring, which cooperates with the spring plate 4 in a spring damper leg, is hangable.
  • the support ring 5 has, as can be seen from Fig. 1a is an L-shaped cross section.
  • a coil spring over one round leg spring plate serves the horizontal leg 7 of the support ring 5, via which the corresponding axial forces can be attached to the spring plate.
  • Such Profileing of the support ring 5 is not absolutely necessary.
  • the support ring 5 could accordingly as simple Ring without ring web 6 may be formed. Through this Ring web 6, however, has a higher rigidity the support ring 5 reached. Furthermore, it is as above described, also variable for round spring plates with smaller diameter can be used.
  • the spring plate has 4 a central through hole 10, which in the use of the spring plate 4 to accommodate assembly parts a shock absorber leg is used, for example is shown in Fig. 10.
  • a shock absorber leg is used, for example is shown in Fig. 10.
  • Threaded holes 11 and 12 and a through hole 13 provided for fixing of the spring plate 4 is on a motor vehicle body this in the present embodiment with two opposite each other with respect to the through hole 10 Threaded holes 11 and 12 and a through hole 13 provided.
  • the through hole 13 is in a corresponding distance to the central through hole 10 of the spring plate 4 arranged.
  • the threaded holes 11 and 12 designed such that the flat outer surface 9 of the spring plate 4 each with a cone-shaped thread dome 14 or 15 vertically tower upwards.
  • the support ring 5 of the gripper element 1 is on its outer circumference provided with two positive locking elements 16 and 17, which are arranged essentially in the same peripheral region are like the two threaded domes 14 and 15 of the Threaded bores 11 and 12 of the spring plate 4, so that after placing the gripper element 1 with his Support ring 5 on the flat outer surface 9 of the spring plate 4, the two positive locking elements 16 and 17 with the above Threaded domes 14 and 15 overlap.
  • the lower end face 8 of the ring web 6 of the support ring 5 on the upper outer surface 9 of the spring plate 4 to enable the two positive locking elements 16, 17 to the spring plate 4 each with two grooves 18 and 19 provided.
  • the two threaded domes protrude 14 and 15 of the spring plate 4 with the support ring attached 5 of the gripper element 1 each fit into the associated one Receiving groove 18 or 19.
  • three ring web sections 20, 21 and 22 are provided, which starts from the lower end face 8 of the ring web 6 on corresponding circumferential sections of the support ring 5 extend vertically downwards.
  • the spring plate fits 4, which has a kind of triangular shape, with little Game between the ring land sections 20, 21 and 22, whereby a certain centering of the spring plate 4 am Support ring 5 is reached.
  • Fig. 3 shows a second embodiment of a gripper element 25, which also has an assembly cylinder 26 for interchangeable mounting on a guide tube a spring tensioner is provided.
  • This assembly cylinder 26 is with a corresponding through hole 27 provided.
  • 3 is also a second embodiment a spring plate 28 shown.
  • the gripper element 25 is provided with a support ring 29, which also according to the representation of Fig. 1a has an L-shaped cross section. Accordingly is the support ring 29 with a circumferential, vertical after ring web 30 directed below and a correspondingly approximately at right angles to this inward horizontal leg 31 provided. The operation of this ring land 30th with its inward horizontal leg 31 corresponds to the ring web 6 with its horizontal leg 7 of the embodiment of the gripper element 1 from the 1 and 2. Also the support ring 29 of the gripper element 25 is with its essentially circumferential, lower Face 32 on the flat, upper outer surface 33 of the Spring plates 26 can be placed flat.
  • the spring plate 28 is provided with a central through hole 34, which are also used to hold assembly parts for assembly of the spring plate 28 on an associated spring strut serves, as can be seen, for example, from FIG. 10 is.
  • the spring plate 28 also has an approximately triangular basic shape, whereby in the Corner areas through holes 35, 36 and 37, respectively are provided. The two through holes are located 35 and 36 with respect to the central through hole 34 roughly opposite while the through hole 37 the front tip of the spring plate 28 at a distance from central through hole 34 approximately symmetrical to the two through holes 35 and 36 in the spring plate 28th is arranged.
  • the support ring 29 has on the outside of its vertical downward ring web 30 two positive locking elements 38 and 39, which are in the same circumferential area are arranged on the support ring 29, like the two Through holes 35 and 36 with respect to the central Through hole 34 of the spring plate 28.
  • the two Form-locking elements 38 and 39 are each with essentially vertically downward plug 40 and 41 provided which the lower end face 32 of the ring web 30 project vertically downwards.
  • the two plug pins 40 and 41 can also be used as separate components of the positive locking elements 38 and 39 be formed.
  • the form-locking element corresponding through holes on (not shown in the drawing), by which such separate plug-in plug can be inserted through with the through holes 35, 36 of the spring plate 26 in Intervention can be brought.
  • FIG 5 shows a further exemplary embodiment of a gripper element 45, also with an assembly cylinder 46 is provided with a through hole 47.
  • This too Through hole 47 of the mounting cylinder 46 is used for tight mounting of the gripper element 45 on the guide tube a spring tensioner.
  • the gripper element 45 also has a support ring 48, which is L-shaped in its cross section is.
  • This L-shaped design of the support ring 48 of the gripper element 45 is used for centering Shot of a circular spring plate in the vertical direction bottom ring web 49 of the support ring 48.
  • Zum Applying the necessary axial forces serves as already described for Fig. 1, the inward Horizontal leg 50 of the support ring 48.
  • the ring web 49 is vertical with three downward, the lower end face 51 of the support ring 48 outstanding ring web sections 52, 53 and 54 provided.
  • ring land sections 52, 53 and 54 are, as well the ring web sections 20, 21 and 22 of the gripper element 1, formed in its circumferential length such that, for example the spring plate 4 from FIG. 1 in different Angular positions on the support ring 48 or support ring 5 the gripper elements 45 or 1 can be arranged.
  • the ring land sections 52, 53 and 54 centering such a spring plate 4 reached on the support ring 48, so that the spring plate 4th from such a support ring 48 during a clamping process can't slip out.
  • positive locking elements 55, 56 and 57 are shown, which are designed as separate components. These positive locking elements 55, 56 and 57 can be in different Way with corresponding components, pins, webs or bores in this embodiment, a spring plate positively engaged become.
  • the form-locking element 55 has an analogy to the form-locking elements 16 and 17 of the gripper element 1 also a receiving groove 58, which for example with the thread dome 14 of the spring plate 4 from FIG. 1 in a form-fitting manner can be brought into engagement.
  • This is the form-locking element 55 by means of the screws 59 shown on the top 60 of the support ring 48 or its horizontal leg 50 can be attached in a predetermined angular position.
  • the form-locking element 55 has in the area its upper, inner end a radially inward Mounting bridge 61 with corresponding through holes 62 on. The arrangement of these through holes 62 is on associated threaded holes 63 in the horizontal leg 50 of the support ring 48 so matched that the positive locking element 55 in different angular positions is securely mountable on the support ring 48.
  • the second form-locking element 56 from FIG. 5 is on it Bottom instead of with a receiving groove 58 with one Provide mounting hole 64, which in its dimensions is designed such that it, for example, on the Threaded freedom 15 of the spring plate 4 from FIG. 1 with little Game is attachable.
  • this spring plate 4 from FIG. 1 for example the form-locking element 56 also by means of two screws 65 attachable to the top 60 of the support ring 48.
  • the support ring 48 has the top side corresponding threaded holes 66.
  • the positive locking element 56 is in the radial direction provided interior mounting web 67, which for Screwing with the support ring 48 also with two Through holes 68 is provided.
  • the threaded bores 66 are larger Number in a certain range of the Support ring 48 or its horizontal leg 50 arranged, so that the positive locking element 56 in different Angular positions on the support ring 48 can be fastened.
  • the embodiment of the third positive locking element 57 has a plug 69, which for example into the through hole 13 of the spring plate 4 from FIG. 1 is suitable to insert.
  • a plug 69 for fastening the positive locking element 57 with its plug 69 this is on his upper end also with an inward facing Mounting web 70 provided, which for attachment by means of two mounting screws 71 with two through holes 72 is provided.
  • Mounting web 70 for attachment by means of two mounting screws 71 with two through holes 72 is provided.
  • For fixed installation by the mounting screws 71 are in the horizontal leg 50 of the Support ring 48 further threaded holes 73 are provided, whose number and arrangement are chosen so that the positive locking element 57 also in different angular positions on the support ring 48 or its horizontal leg 50 is securely attachable.
  • Fig. 6 shows a further embodiment of a gripper element 75, which also has an assembly cylinder 76 with mounting hole 77.
  • This gripper element 75 also has a support ring 78, the formation of which analogous to the support ring 5 of the gripper element 1 Fig. 1 corresponds.
  • Form-locking elements 79 and 80 are provided, which in a radially outer part 81 and 82 on the other Each have a receiving groove 83 and 84 on the underside. Instead of these grooves 83 and 84 can also how 5 described, receiving bores, plug pins or other form elements may be provided, which correspond with trained molded parts of a spring plate in positive engagement can be brought.
  • These grooves 83 and 84 of the form-locking elements 79 and 80 are analog to the receiving grooves 18 and 19 of the gripper element 1 1 and accordingly serve, for example to accommodate the threaded domes 14 and 15 of the Spring plates 4 from Fig. 1.
  • each in the support ring 78 threaded bores 92, 93 assigned to one another in pairs and 94 are provided, via which the interlocking elements 79 and 80 in different angular positions on the support ring 78 are attachable. Because of the slot-like openings 87 and 88, the two positive locking elements are optional according to their assignment to the threaded holes 92, 93 or 94 to the desired angular orientation of a Spring plates 4 continuously in a desired angular position bringable with respect to the support ring 78.
  • Fig. 7 shows an embodiment of a gripper element 95, which is also a mounting cylinder 96 with mounting hole 97 has. Furthermore, is also a Support ring 98 with an L-shaped cross section and a essentially vertically downward ring web 99 and an upper one, approximately at right angles to the ring web 99 provided inward horizontal leg 100. In this embodiment, too, the lower one End face 101 of the ring web 99 when tensioning one Coil spring on an upper spring plate such as the one shown 1 is shown. For centered recording of such a spring plate are ring web sections 102, 103 and 104 are also provided, which protrude vertically downward from the end face 101 and each over a small part of the peripheral area of the ring web 99 extend. How it works this ring web sections 102, 103 and 104 corresponds to the Operation of the ring land sections 20, 21 and 22 of the Gripper element 1 from FIG. 1.
  • the gripper element 95 from FIG. 7 differs from Gripper element 1 from FIG. 1 essentially in that on its support ring 98 opposite each other form-fitting elements 105, 106 and 107, 108 are provided. These positive locking elements 105 to 108 are in one piece in the present embodiment Part of the support ring 98. For angular alignment for example the spring plate 4, how this continues 11a and 11b explained in more detail below is, the positive locking elements 105 and 106 and the Positive locking elements 107 and 108 each with a receiving groove 109, 110 and 111, 112. These grooves are used in pairs for angular alignment or for recording of the associated thread dome 14 or 15 of the spring plate 4 from FIG. 1.
  • the receiving grooves 109 and 110 clockwise by an angle ⁇ one across from the support ring 98 and the mounting cylinder 96 of the gripper element 95 defined vertical longitudinal center plane 113 transverse transverse plane 114 rotated arranged.
  • the two grooves 111 and 112 of the interlocking elements 107 and 108 with respect this transverse median plane 114 counterclockwise arranged rotated by the same angle ⁇ .
  • a spring plate 4 from FIG. 1 in relation to the Transverse center plane 114 of the support ring 98 rotated symmetrically Angular alignments of the gripper element 95 or whose support ring 98 are added.
  • the gripper element 95 such a symmetrical alignment in this regard easily accessible that the spring plate 4 with its two threaded domes 14 and 15 for mounting one such a shock absorber leg on one side of the vehicle for example with the receiving grooves 111 and 112 of the Positive locking elements 107 and 108 are brought into engagement, while for a shock absorber, which for the other motor vehicle side such a spring plate 4 is provided with its threaded domes 14 and 15 accordingly Angle rotated in the opposite direction with the receiving grooves 109 and 110 of the form-locking elements 105 and 106 is engaged.
  • FIG. 8 shows a further exemplary embodiment of a gripper element 115, also with an assembly cylinder 116 is provided with mounting hole 117.
  • This too Gripper element 115 has a support ring 118 with an L-shaped one Cross-section and thus with a vertical after ring ring 119 directed downwards and an inward directed Horizontal leg 120 on.
  • a mounting ring 121 For angular alignment of a spring plate, for example of the spring plate 4 from FIG. 1 is a mounting ring 121 provided which in the present embodiment fixed with three mounting screws 122 on the support ring 119 is mountable.
  • the mounting ring is on its outer Scope with each assigned in pairs, according to open at the bottom, U-shaped positive locking elements 123, 124 and 125, 126.
  • the angular arrangement of these positive locking elements 123, 124 and 125, 126 corresponds to each other in the present embodiment of the angular arrangement of the receiving grooves 109, 110 and 111, 112 of the Gripper element 95 from FIG. 7.
  • an inner centering can also be provided.
  • a rotating one Ring web 132 may be provided (shown in dashed lines), which when placed on such a spring plate Support ring 118 in the spring plate to its centered Recording intervenes. It is understood that such a rotating Ring web 132 also interrupted in the circumferential direction can be and accordingly analogous to the outer Ring web sections 129, 130 and 131 inner ring web sections 133, 134 and 134 forms, like this also in Dashed lines are shown.
  • Mounting ring 121 For screwing of the mounting ring 121 with the support ring 118 has the Mounting ring 121 corresponding through holes 136 on whose arrangement the arrangement of the threaded holes 127 of the support ring 118 corresponds.
  • the gripper element 115 with its mounting ring 121 can the mounting ring 121 instead of through holes 136 also provided with slot-like openings 137 be (shown in phantom lines) so that the Mounting ring 121 with its form-locking elements 123 to 126 in different angular positions on the support ring 118 is attachable.
  • Mounting ring 121 with its positive locking elements 123 to 126 can, for example, as shown from a Be made of sheet metal.
  • the mounting ring 121 can also be designed as a graduated disc and one Angle division in the form of, for example, line markings wear, as is already exemplary for the support ring 78 from FIG. 6 is shown.
  • Line marking is a precise angular alignment of the Mounting ring 121 with its positive locking elements 123, 124, 125, 126 in connection with a corresponding reference mark on the gripper element 115 or its support ring 118 can be carried out safely.
  • FIG. 9 shows an additional alignment element 140 which is provided for aligning a spring tensioner on the spring damper leg, as will be explained in more detail below with reference to FIG. 10.
  • the alignment element 140 has a receiving fork 141, the two fork legs 142 and 143 of which run parallel to one another and each have a central through-hole 144 and 145.
  • the clear distance A between the two fork legs 142 and 143 corresponds to the axial length L of the inner bearing bush 146 of a bearing eye 147, as is shown by way of example in FIG. 10.
  • the alignment element 140 is provided with a centering fork 148, which serves for the positive reception of a guide tube 149 of a spring tensioner 150 shown in FIG. 10.
  • the clear distance A1 between the two fork legs 151 and 152 of the centering fork 148 corresponds approximately to the diameter D of the guide tube 149 from FIG. 10
  • the alignment element 140 in the present exemplary embodiment consists of two sheet metal parts 154 and 155 which are bent symmetrically with respect to one another and are angled several times and which, for example, can be welded to one another in the region between the receiving fork 141 and the centering fork 148 and thus form a stable unit.
  • FIG. 10 shows the spring tensioner 150 in use.
  • This is the end of the guide tube 149 of the spring tensioner 150 Gripper element 1 from FIG. 1 via its mounting cylinder 2 fixed mounted.
  • the spring tensioner 150 a second gripper element 156, which is axially displaceable is mounted on the guide tube 149.
  • an actuator in the form of a threaded spindle (not visible in the drawing) provided, which by means of a drive hexagon 157 can be actuated.
  • the Spring tensioner 150 is on a shock absorber leg 158 for Tension a coil spring 159 of the shock absorber leg 158 scheduled.
  • This coil spring 159 is shown in FIG assembled state of the shock absorber leg 158 under tension between the upper spring plate 4 Fig. 1 and a lower spring plate 160 clamped.
  • the lower spring plate 160 is fixed to one Damper tube 161 of the shock absorber leg 158 attached.
  • At the the lower end is the bearing eye 147 with its inner bearing bush 146 provided.
  • This bearing eye 147 runs with its longitudinal central axis 162 perpendicular to the longitudinal central axis 163 of the strut 158.
  • the Coil spring 159 is the spring tensioner 150 with its first, upper gripper element 1 and its second, lower Gripper element 156 in that shown in FIG. 10 Position on spring strut 158 attached.
  • the second gripper element has to tension the coil spring 159 156 an approximately fork-shaped Clamping claw 167, which is in the position shown into a lower spring turn 168 of the coil spring 159 intervenes.
  • the drive hexagon 157 is actuated becomes the second gripper element 156 with its clamping claw 167 along the guide tube 149 to the first, upper Gripper element 1 moves so that the between second gripper element 156 and the first gripper element 1 or its picked up by the first gripper element 1
  • Spring plate 4 located coil spring 159 shortened and is therefore excited.
  • alignment element 140 For a safe, right-angled alignment of the spring tensioner 150 with its guide tube 149 to the longitudinal central axis to ensure 162 of the bearing eye 147, this is in Fig. 9 alignment element 140 described in more detail is provided, which 10 is shown in thin phantom lines. It can easily be seen that the receiving fork 141 can be pivoted via the pivot pin 153 on the bearing eye 147 or whose inner bearing bush 146 is received. In the illustrated position of this alignment element 140 grips it laterally with its centering fork 148 or with the two fork legs 151 and 152 of the centering fork 148 fits the guide tube 149 so that this automatically perpendicular to the longitudinal central axis 162 of the Bearing eye 147 is aligned.
  • the spring plate 4 For mounting the spring plate 4 together with the coil spring 159 is the spring plate 4 in the illustrated Position in the support ring 5 of the gripper element 1 inserted. Then the spring plate 4 on the Coil spring 149 and the second gripper element 156 with its clamping claw 167 with the spring turn 168 of the coil spring 159 engaged. By subsequent tensioning of the coil spring 159 can Coil spring 159 together with the spring plate 4, which precisely with respect to the support ring 5 of the gripper element 1 is aligned, together with the entire spring tensioner 150 on the lower spring plate 160 of the shock absorber leg 158 to be put on.
  • the coil spring 159 in this position still free on the lower spring plate 160 is rotatable, can be in a simple manner it optically or using the alignment element 140, the entire spring tensioner 150 at right angles to the bearing eye 147 be aligned. After the screw connection the piston rod (not shown in the drawing) with the spring plate 4 via the corresponding fastening elements, 10 generally with the reference number in FIG 169 are done in the usual way, the spring tensioner 150 can be released again.
  • the spring tensioner 150 with the first gripper element 95 from FIG. 7 is used.
  • lower gripper element 156 shown Gripper element 156 in FIGS. 10 and 10 described above accordingly engages in a not shown Spring turn of the coil spring 159.
  • Fig. 11a and 11b is the first gripper element 95 via the assembly cylinder 96 at the upper end of the guide tube 149 fixed and lies on the Spring plate 4 from FIG. 1.
  • the alignment element 140 for use is suitable with the bearing eye by the pivot pin 153 147 of the shock absorber leg 158 connected.
  • the gripper element serves 95 with its support ring 98 for angular alignment of the Spring plates 4 in two different directions of rotation with respect to the longitudinal central axis 162 of the lower bearing eye 147 from the shock absorber leg 158.
  • the spring plate 4 with its threaded domes 14 and 15 form-fitting with the two each other pairs of grooves 109 and 110 of the Form-locking elements 105 and 106 of the support ring 98 engage.
  • FIG. 12 and 13 show a further embodiment a first, upper gripper element 175, which also for interchangeable mounting on a guide tube a spring tensioner has an assembly cylinder 176, which has a central through hole 177 is provided.
  • the gripper element 175 is for receiving the also shown in Fig. 12 spring plate 178 with an approximately annular support ring 179 provided which on the spring plate 178 for tensioning one Coil spring with the spring plate 178 in one Shock absorber interacts, can be placed.
  • the support ring 179 has, as already described for FIG. 1a was also an L-shaped cross section on.
  • the support ring 179 thus also forms a circumferential, Ring web 180 directed vertically downwards.
  • a coil spring via such a spring plate 178 serves the horizontal leg 181 of the support ring 179, via which the corresponding axial forces on the spring plate are applicable. These axial forces are there from the horizontal leg 181 to a rotating one Transfer ring flange 182 of the spring plate 178.
  • this spring plate 178 For centered Inclusion of this spring plate 178 with his Ring flange 182 in support ring 179 is the inside diameter of the ring land 180 corresponding to the outer diameter of the ring flange 182 matched so that the spring plate 178 with its ring flange 182 with extremely little radial Game is recorded in the ring bridge 180. How from 12 can also be seen, the spring plate 178 radially within its ring flange 182 a mounting dome 183 on, whose upper ring surface 184 with two mounting holes 185 and 186 is provided. About these Mounting holes 185 and 186 is a fully assembled one Shock absorber strut on the body of a motor vehicle firmly attachable.
  • Fig. 12 two alternative embodiments of a form-locking element 187 and 188 respectively.
  • the form-locking element 187 is an integral part of the support ring 179 and on its upper circumferential End face 189 arranged.
  • the positive locking element 187 has a support arm 190 which extends outwards from the end face 189 upwards and radially inwards extends.
  • Support arm provided with a plug pin 192, which is extends axially, vertically downwards.
  • This peg 192 is in diameter on the diameter of the mounting hole 186 of the spring plate 178 matched appropriately, so that when inserted in the support ring 179 Spring plate 178 fits into the mounting hole 186 can be inserted, as can be seen in particular from FIG. 13 is.
  • this pin 192 of the form-locking element 187 an angular orientation of the Spring plates 178 with respect to the gripper element 175 and thus also with regard to a spring tensioner on which the Gripper element 175 is arranged fixed, reached.
  • this form-locking element 187 with its plug 192 can be diametrically opposite on the support ring 179 also integrally molded a second form-locking element be, which fits with another plug can be inserted into the mounting hole 185.
  • a such a double arrangement of a form-locking element 187 may be required if the radial play between the ring flange 182 and the ring web 180 of the support ring 179 is relatively large. This also becomes one centered mounting of the spring plate 178 in the support ring 179 of the gripper element 175 reached.
  • a positive locking element is shown, which is designed as a separate component.
  • For stuck Attachment is the form-locking element 188 accordingly with two through holes 195 and 196 provided, which in a the distance of the threaded holes 193, 194 corresponding distance in a mounting flange 197 of the form-locking element 188 is arranged are.
  • the form-locking element 188 is fastened by means of two mounting screws 198 and 199, like this in particular 13 can be seen.
  • the form-locking element 188 along its Be provided with a stop web 200 on the outer edge, whose shape in the present embodiment slightly conical outer surface 201 of the ring land 180 of the support ring 179 is adapted.
  • Stop bar 200 is the positioning of the positive locking element 188 on the support ring 179 considerably facilitated.
  • FIGS. 12 and 13 points the form-locking element 188 a radially inward and vertically upward support arm 202, which connects radially inward to the mounting flange 197.
  • the form-locking element is also located at the radially inner end 203 188 or its support arm 202 with a Plug 204 provided, which in the present embodiment fits into the mounting hole 185 of the spring plate 178 can be inserted.
  • the form-locking element 188 with a be provided with an arcuate slot so that whose angular position on the support ring 179 is different is adjustable.
  • the plug pins 192 and 204 to adapt to the training of an admitted Spring plates also provided other positive locking elements be used for angular alignment at least in the circumferential direction with a part of the spring plate approximately can be coupled without play.
  • FIG. 14 shows a further exemplary embodiment of a spring tensioner 205, which with a coil spring 206 a first gripper element 207 and a second gripper element 208 is scheduled. Both gripper elements 207 and 208 each have a receiving fork 209 or 210.
  • the first gripper element 207 is firmly attached to the upper one End of a guide tube 211 of the spring tensioner 205 is arranged and with its receiving fork 209 in an upper spring turn 212 of the coil spring 206 hooked.
  • the second gripper element 208 is on the guide tube 211 axially displaceable and with it Pickup fork 210 in a lower spring turn 213 of the Coil spring 206 suspended.
  • the alignment device 221 has a bearing section 222, which has a central opening 223 and one arranged vertically along the outer edge 224 downward receiving web 225 is provided. How 14 in phantom lines is the Alignment device 221 with its bearing section 222 suitable on the upper end of the guide tube 211 with his first gripper element 207 can be placed. In this position the receiving web 225 encloses the outer wall 226 of the Gripper element 207 almost free of play.
  • the central one Breakthrough 223 is in the present embodiment of the alignment device 221 in its diameter on the Dimensions of the retaining webs at the upper end 227 of the guide tube 211, which for the axial locking of the first gripper element 207 are provided, suitably matched.
  • the alignment device 221 has one multiple bent support arm 229 on the bearing section 222 opposite end two spaced apart Alignment pins 230 and 231 are provided. These alignment pins 230 and 231 are in their diameter on the diameter of the mounting holes 220 and 219 of the spring plate 214 matched and, as also in Phantom lines are shown, can be plugged into them.
  • the alignment device 221, 14 the spring plate 214 with its mounting holes 220, 219 opposite the bearing eye 217 of the spring damper leg 216 can be aligned, that the mounting holes 220, 219 with their Connection line 232 to a predetermined angular position Longitudinal central axis 218 of the bearing eye 217 during assembly take in. This is a correct assembly of the whole Shock absorber leg 216 on the one hand by the intended Alignment device 221 and also by the alignment element 140 ensured.
  • the positive locking elements also within of the support ring directly on its inner boundary wall can be arranged if the corresponding Molded parts of the spring plate with which the positive locking elements to be engaged appropriate location of the spring plate are, in particular if these are arranged as recesses or recessed Bores are formed. It is also provided such positive locking elements, be it as a separate component or as an integral part of the support ring, or the alignment element directly below the actual one To provide support surface of the support ring. This is essentially based on the specific training of the Spring plates dependent.
EP20000100233 1999-03-03 2000-01-17 Vorrichtung für Federspanner zum Ausrichten eines Federtellers Expired - Lifetime EP1033206B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29903826U DE29903826U1 (de) 1999-03-03 1999-03-03 Vorrichtung für Federspanner zum Ausrichten eines Federtellers
DE29903826U 1999-03-03

Publications (3)

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EP1033206A2 true EP1033206A2 (de) 2000-09-06
EP1033206A3 EP1033206A3 (de) 2001-03-14
EP1033206B1 EP1033206B1 (de) 2005-09-14

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DE (2) DE29903826U1 (ar)
ES (1) ES2245278T3 (ar)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10109752C1 (de) * 2001-02-28 2002-08-14 Hazet Werk Zerver Hermann Greifelement für Federspanner
EP1900483A2 (de) * 2006-09-12 2008-03-19 Klann Spezial-Werkzeugbau GmbH Vorspanneinrichtung zum Vorspannen einer Schraubenfelder
EP1897660A3 (de) * 2006-08-17 2009-11-25 Hazet-Werk Hermann Zerver GmbH & Co. KG Greifelement für einen Federspanner und Federspanner
CN108637897A (zh) * 2018-04-23 2018-10-12 温岭市正大工业机器人有限公司 一种大行程快速定心夹紧机构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005006200U1 (de) * 2005-04-19 2005-08-04 Klann-Spezial-Werkzeugbau-Gmbh Vorrichtung zum Einstellen eines Federdämpferbeines
DE202008012339U1 (de) * 2008-09-16 2008-11-20 Klann-Spezial-Werkzeugbau-Gmbh Vorrichtung zum Spannen eines Federdämpferbeines

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8702531U1 (ar) * 1987-02-19 1987-05-27 Heinz-W. Rodewald Gmbh Werkzeugbau, Metallbearbeitung, 5620 Velbert, De
EP0349776A2 (de) * 1988-07-07 1990-01-10 Horst Klann Druckfedernspanner
DE29801172U1 (de) * 1998-01-24 1998-03-19 Klann Tools Ltd Federspanner für Schraubenfedern mit geringer Windungszahl

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8702531U1 (ar) * 1987-02-19 1987-05-27 Heinz-W. Rodewald Gmbh Werkzeugbau, Metallbearbeitung, 5620 Velbert, De
EP0349776A2 (de) * 1988-07-07 1990-01-10 Horst Klann Druckfedernspanner
DE29801172U1 (de) * 1998-01-24 1998-03-19 Klann Tools Ltd Federspanner für Schraubenfedern mit geringer Windungszahl

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10109752C1 (de) * 2001-02-28 2002-08-14 Hazet Werk Zerver Hermann Greifelement für Federspanner
EP1897660A3 (de) * 2006-08-17 2009-11-25 Hazet-Werk Hermann Zerver GmbH & Co. KG Greifelement für einen Federspanner und Federspanner
EP1900483A2 (de) * 2006-09-12 2008-03-19 Klann Spezial-Werkzeugbau GmbH Vorspanneinrichtung zum Vorspannen einer Schraubenfelder
EP1900483A3 (de) * 2006-09-12 2008-04-30 Klann Spezial-Werkzeugbau GmbH Vorspanneinrichtung zum Vorspannen einer Schraubenfelder
CN108637897A (zh) * 2018-04-23 2018-10-12 温岭市正大工业机器人有限公司 一种大行程快速定心夹紧机构
CN108637897B (zh) * 2018-04-23 2023-09-26 台州小助手智能科技有限公司 一种大行程快速定心夹紧机构

Also Published As

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DE50011145D1 (de) 2005-10-20
DE29903826U1 (de) 1999-05-27
EP1033206A3 (de) 2001-03-14
EP1033206B1 (de) 2005-09-14
ES2245278T3 (es) 2006-01-01

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