EP3938225A1 - Blattfederlager und kraftfahrzeugradaufhängung mit einem solchen - Google Patents
Blattfederlager und kraftfahrzeugradaufhängung mit einem solchenInfo
- Publication number
- EP3938225A1 EP3938225A1 EP20701283.2A EP20701283A EP3938225A1 EP 3938225 A1 EP3938225 A1 EP 3938225A1 EP 20701283 A EP20701283 A EP 20701283A EP 3938225 A1 EP3938225 A1 EP 3938225A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- leaf spring
- spring bearing
- vehicle body
- motor vehicle
- bearing
- 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- Withdrawn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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
- B60G11/10—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
- B60G11/113—Mountings on the axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
- B60G11/08—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only arranged substantially transverse to the longitudinal axis of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
- B60G11/10—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G3/00—Resilient suspensions for a single wheel
- B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
- B60G3/28—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram at least one of the arms itself being resilient, e.g. leaf spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/02—Attaching arms to sprung part of vehicle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/18—Leaf springs
- F16F1/26—Attachments or mountings
- F16F1/30—Attachments or mountings comprising intermediate pieces made of rubber or similar elastic material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/366—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers made of fibre-reinforced plastics, i.e. characterised by their special construction from such materials
- F16F1/368—Leaf springs
- F16F1/3683—Attachments or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/10—Independent suspensions
- B60G2200/14—Independent suspensions with lateral arms
- B60G2200/144—Independent suspensions with lateral arms with two lateral arms forming a parallelogram
- B60G2200/1442—Independent suspensions with lateral arms with two lateral arms forming a parallelogram including longitudinal rods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/11—Leaf spring
- B60G2202/114—Leaf spring transversally arranged
-
- 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
- B60G2204/12—Mounting of springs or dampers
- B60G2204/121—Mounting of leaf springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/41—Elastic mounts, e.g. bushings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/41—Elastic mounts, e.g. bushings
- B60G2204/4104—Bushings having modified rigidity in particular directions
-
- 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
- B60G2204/418—Bearings, e.g. ball or roller bearings
-
- 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
- B60G2204/44—Centering or positioning means
-
- 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
- B60G2204/45—Stops limiting travel
- B60G2204/4502—Stops limiting travel using resilient buffer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/10—Constructional features of arms
- B60G2206/11—Constructional features of arms the arm being a radius or track or torque or steering rod or stabiliser end link
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/40—Constructional features of dampers and/or springs
- B60G2206/42—Springs
- B60G2206/428—Leaf springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/70—Materials used in suspensions
- B60G2206/71—Light weight materials
- B60G2206/7101—Fiber-reinforced plastics [FRP]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/70—Materials used in suspensions
- B60G2206/73—Rubber; Elastomers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2304/00—Optimising design; Manufacturing; Testing
- B60Y2304/07—Facilitating assembling or mounting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
- B62D65/12—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components the sub-units or components being suspensions, brakes or wheel units
Definitions
- the invention relates to a leaf spring bearing for supporting a leaf spring against a motor vehicle body, comprising a body-side coupling section and at least one elastomer section to compensate for displacements transversely to the direction of support, a centering device being provided on the coupling section for positive engagement with a mating contour on the vehicle body side.
- the invention also relates to a motor vehicle wheel suspension with such a leaf spring bearing.
- a leaf spring bearing of the generic type and a motor vehicle wheel suspension of the generic type with such are known from DE 10 2016 220 325 A1.
- DE 10 2016 220 325 A1 discloses a leaf spring bearing which has a support body which is designed to be pressure-resistant and tensile-resistant and which is attached to the
- Vehicle body and is supported on a second rubber buffer at an end portion of the leaf spring.
- pins can be formed which penetrate the respective rubber buffer and serve to fix the position of the leaf spring bearing on the leaf spring and on the vehicle body, where corresponding openings are provided.
- the rubber buffers avoid constraints when the leaf spring 12 is deformed and pivoted, so that the deformation potential of the leaf spring can be used effectively.
- the leaf spring bearing represents one of the interfaces to the vehicle body.
- the leaf spring bearing known from DE 10 2016 220 325 A1 cannot be positioned reliably on the motor vehicle body due to the pins, since dimensional deviations prevent automated assembly. Rather, the known leaf spring bearing has to be pressed manually into the correct position in order to achieve the desired screw connection position.
- the invention is based on the object of providing a remedy here.
- the invention aims to facilitate the assembly of a motor vehicle suspension, which has a leaf spring, on the motor vehicle body.
- Leaf spring bearing according to the invention comprises a body-side coupling section and at least one elastomer section to compensate for displacements transversely to
- a centering device is provided on the coupling section for positive engagement with a mating contour on the vehicle body side. It is characterized in particular in that the centering device on the coupling section is designed in such a way as to guide the coupling section of the leaf spring bearing in the event of deviations from a target contact position on the motor vehicle body transversely to the support direction in the direction of the target contact position.
- the desired target system position on the vehicle body is achieved practically automatically, whereby a high level of process reliability is achieved with regard to the positioning of the leaf spring bearing on the vehicle body.
- Any dimensional deviations transverse to the direction of support are compensated during assembly by the centering device by making a corresponding position correction transversely to the direction of support by the centering device as the leaf spring bearing approaches the target contact position is effected until the correct nominal contact position is finally reached at the end of the approach. This enables automated assembly without additional manual intervention in large-scale production.
- the centering device ensures that the leaf spring bearing is positionally fixed on the motor vehicle body transversely to the support direction in the nominal contact position due to the positive engagement. If the leaf spring bearing is always loaded in its installation position by a compressive force in the support direction, additional fastening means such as
- the leaf spring bearing can be positioned and fixed solely due to the form-fitting engagement and due to the compressive force. This enables a simpler construction of the leaf spring bearing and offers further assembly advantages, especially in the case of automated assembly, since an additional fastening process can be omitted.
- the centering device on the coupling section can be designed as a recess and can therefore be manufactured very easily.
- the coupling section can consist of a material which has a higher rigidity than the material of the elastomer body. This ensures, on the one hand, a positionally accurate position fixation, and on the other hand, a low rigidity of the bearing can be achieved in particular in the direction transverse to the support direction with regard to the compensation of constraints.
- the leaf spring bearing remains relatively stiff in the support direction, so the spring rate of the leaf spring is not impaired in the support direction.
- the centering device can comprise a mandrel and a corresponding recess, whereby the arrangement can optionally take place on the vehicle body and on the leaf spring bearing. If a mandrel is provided on the body side, such as for the purpose of supporting a conventional helical spring, the leaf spring bearing is fitted with a corresponding one
- corresponding recess can be designed, for example, conical.
- the coupling section and the elastomer section have a common contact surface.
- the leaf spring bearing has a further coupling section for fastening the leaf spring bearing to a leaf spring.
- the elastomer section connects to the two coupling sections, namely the
- Both coupling sections are preferably otherwise unconnected. It is also possible to vulcanize the elastomer section directly onto an end section of a leaf spring.
- a motor vehicle wheel suspension according to claim 8 is also proposed. This includes a leaf spring made of fiber-reinforced
- Plastic and a leaf spring bearing which is arranged at an end portion of the leaf spring to support the leaf spring against a vehicle body, a positive centering device being provided between the leaf spring bearing and the vehicle body, the leaf spring bearing resting loosely against the vehicle body and the leaf spring being pretensioned in this way in order to keep the leaf spring bearing pressed against the vehicle body over the entire compression and rebound travel of the motor vehicle suspension and thereby fix it.
- the leaf spring can in particular be designed in the manner explained above.
- the motor vehicle suspension comprises a further leaf spring made of fiber-reinforced plastic, which together with the first leaf spring forms a V-shaped structure, the V-shaped structure being supported on the vehicle body side in the region of the merged ends of the two leaf springs and the further leaf spring on its free end portion is supported on the wheel side.
- the further leaf spring takes place in the
- a method for assembling a motor vehicle wheel suspension in which a leaf spring provided with a leaf spring bearing is mounted from below on the vehicle body by connecting the leaf spring in the relaxed state with its end section opposite the leaf spring bearing and bringing the leaf spring bearing into contact with the motor vehicle body, whereby the centering device during assembly the
- Leaves spring bearing leads into the target contact position on the motor vehicle body and then the leaf spring is tensioned, whereby the leaf spring bearing is held in the target contact position solely by the centering and the support force.
- the procedure can be used for the
- Figure 1 shows a leaf spring bearing according to a possible embodiment of the invention in
- Figure 2 shows a motor vehicle suspension according to a possible embodiment of the
- FIG. 3 shows the motor vehicle wheel suspension according to FIG. 2 during assembly when the target contact position of the leaf spring bearing on the motor vehicle body is reached, the leaf spring still being relaxed, and in FIG.
- Figure 4 shows the motor vehicle suspension according to Figure 2 after completion of the assembly of
- FIG. 1 shows an example of a leaf spring bearing 1 for supporting a leaf spring 11 against a motor vehicle structure 20 shown in FIGS. 2 to 4, including in the present case
- leaf spring bearing 1 achieves an advantageous assembly of a motor vehicle wheel suspension 10, also shown in FIGS.
- the leaf spring 11 is part of a spring device which consists of two leaf springs 11 and 12 on each wheel side.
- the leaf spring bearing 1 described in the context of the exemplary embodiment can also be used in other spring devices of a motor vehicle wheel suspension, for example in those which have only a single leaf spring 11 per wheel side.
- the leaf springs 11 and 12 of the embodiment are preferably made of one
- fiber-reinforced plastic in particular glass fiber reinforced plastic (GRP) or carbon fiber reinforced plastic (CFK).
- GRP glass fiber reinforced plastic
- CFRK carbon fiber reinforced plastic
- leaf springs 11 and 12 are designed as separate components in the embodiment shown in FIG. It is also possible to integrate both leaf springs 11 and 12 in a one-piece body made of fiber-reinforced plastic.
- the two leaf springs 11 and 12 together form a V-shaped structure in a vertical plane, wherein the leaf springs 11 and 12 can have different lengths from one another and are installed one above the other in the vehicle.
- the V-shaped structure one end section of the first leaf spring 11 and one end section of the further leaf spring 12 are brought together and connected to one another, whereby the tip of the V-shape is obtained.
- the V-shaped spring device formed in this way is preferably pivotably supported on the vehicle body 20 via this tip.
- the opposite end sections of the leaf springs 11 and 12 correspondingly form free end sections of the V-shape, the first leaf spring 11 being supported with its free end section 13 on the vehicle body side and the further leaf spring 12 being supported on its free end section 14 on the wheel side.
- the vehicle body-side support point on the free end section 13 of the first leaf spring 11 is closer to the vehicle center than the wheel-side when the spring device is arranged in the transverse direction of the vehicle
- the V-shape can be designed in such a way that the main direction of extent of the first leaf spring 11 and the main direction of extent of the second leaf spring 12 enclose an acute angle ⁇ in the relaxed state of the spring device according to FIG. 2.
- This acute angle a is preferably in the range from 15 ° to 35 °, so that on the one hand a small Installation height can be guaranteed, on the other hand, sufficient deflection potential for energy absorption is available.
- FIG. 4 shows the spring device in a pretensioned state with the vehicle standing on the ground. This corresponds to the installation position in the vehicle.
- a suitable one is provided at each of the aforementioned support points of the spring device
- a first bearing device 15 is provided for the articulated connection of the tip of the V-shaped spring device to the vehicle body 20. This can be designed to mutually brace the brought together end sections of the first and further leaf springs 11 and 12.
- Clamping can in particular be carried out as described in DE 10 2016 220 325 A1.
- a second bearing device 16 for the articulated connection of the wheel-side free end section of the further leaf spring 12 to a wheel carrier 21 can be designed, for example, as a fork. At this point, too, the connection can take place as described in DE 10 2016 220 325 A1.
- the leaf spring bearing 1 comprises a body-side coupling section 2 for support against the motor vehicle body 20 and at least one elastomer section 3 to compensate for displacements transverse to the direction of support A. Furthermore, the leaf spring bearing 1 can have a leaf spring-side coupling section 4 for supporting against the first leaf spring 11.
- the at least one elastomer section 3 is arranged between the two coupling sections 2 and 4 and connects them to one another.
- the two coupling sections 2 and 4 are incidentally not connected.
- the elastomer section 3 can be vulcanized onto the coupling sections 2 and 4, so that no additional fastening means are required for this, which could impair the compact dimensions of the leaf spring bearing 1.
- Coupling section 4 is also omitted, in which case the leaf spring bearing 1 is then connected directly to the free end section 13 of the first leaf spring 11 via the at least one elastomer section 3.
- Support direction A of the leaf spring bearing 1 is provided in order to enable the free end section 13 to pivot somewhat with respect to the motor vehicle body 20 during the compression and rebound of the motor vehicle wheel suspension 10 and possibly give way to the side.
- the leaf spring bearing 1 In the support direction A, however, the leaf spring bearing 1 is comparatively stiff.
- the rigidity of the leaf spring bearing 1 in the direction of support A is significantly higher than in the transverse direction, so that the spring rate of the first leaf spring 11 is not impaired as much as possible.
- the coupling section 2 on the body side and, if present, also the coupling section 4 on the leaf spring side are preferably made of a material that is more rigid than the material of the elastomer section 3.
- the coupling section 2 is
- elastomer section 3 made from an elastomer.
- the body-side coupling section 2 and - if present - also the leaf-spring-side coupling section 4 to the elastomer section 3 can each have a common contact surface 5 or 6.
- This centering device 9 on the coupling section 2 is designed to the
- Coupling section 2 of the leaf spring bearing 1 in the event of deviations from a nominal contact position on Motor vehicle body 20, as can be seen in FIGS. 3 and 4, to guide transversely to the support direction A in the direction of the nominal contact position.
- the centering device 9 automatically guides the leaf spring bearing 1 into the desired contact position, in particular even when the position of the leaf spring bearing 1 is initially transverse to the
- the form fit also fixes the position of the leaf spring bearing 1 in the target contact position transverse to the support direction A.
- the centering device 9 on the coupling section 2 on the body side can be formed by a recess 9a which is preferably conical.
- the centering device 9 can thus, on the one hand, be formed very simply on the leaf spring bearing 1, in particular on its coupling section 2 on the body side. On the other hand, this favors the leadership of the leaf spring bearing 1 in the
- a corresponding mandrel 23 is formed or attached to the motor vehicle body 20 as a counterpart, with which the recess 9a engages.
- the mandrel 23 can
- Coupling section 2 to provide a projection or mandrel, which in a
- Corresponding recess on the motor vehicle body 20 engages in a form-fitting manner in order to achieve a positional fixation transversely to the direction of support. If the leaf spring bearing 1 is always loaded in its installation position by a compressive force of the spring device in the support direction A, additional fastening means for fixing the leaf spring bearing 1 on the motor vehicle body 20 can be omitted.
- the leaf spring bearing 1 is positioned and fixed in the support direction A solely due to the positive engagement of the centering device 9 and due to the compressive force.
- the structure of the leaf spring bearing 1 remains simple and compact as a result. In addition, there is no otherwise during assembly
- the leaf spring bearing 1 is fastened to the end section 13 of the first leaf spring 11. This can take place in any desired manner with or without the coupling section 4 on the leaf spring side.
- This preassembled structural unit which is shown in FIG. 1, is then brought into the area of the motor vehicle body 20 and mounted on the motor vehicle body 20 from below.
- FIG. 2 shows an initial position in which the leaf springs 11 and 12 are in a relaxed state. Neither the first and second bearing devices 15 and 16 nor the leaf spring bearing 1 are connected here.
- the spring device, in particular the leaf spring bearing 1, is positioned roughly in front of the relevant support points.
- the leaf spring bearing 1 with its coupling section 2 on the body side is brought closer to the nominal system position on the motor vehicle body 20.
- the centering device 9 comes into engagement with its bearing-side and structure-side section, in the present case by way of example the recess 9a and the mandrel 23.
- the centering device 9 brings about an automatic alignment of the leaf spring bearing 1 to the nominal contact position by
- Deviations across the support direction A, which are essentially parallel to Mounting direction B can be corrected automatically until the body-side coupling section 2 is in contact with the motor vehicle body 20, as shown in FIG.
- the first bearing device 15 can be connected to the body.
- the leaf springs 1 and 2 are still relaxed.
- FIG. 4 shows the motor vehicle suspension 10 with the vehicle stationary.
- the free end section 14 of the second leaf spring 12 is also connected to the wheel carrier 21 via the second bearing device 16.
- the leaf springs 11 and 12 are in a pretensioned state, deformed in relation to FIGS. 2 and 3, in which the vehicle body 20 is supported against the ground via the vehicle wheel suspension 10. Because of this preload, the leaf spring bearing 1 is pressed in the support direction A against the motor vehicle body 20.
- the bias of the leaf springs 11 and 12 is set in such a way that a sufficient pressure force in the support direction A on the leaf spring bearing 1 is maintained over the entire compression and rebound area of the motor vehicle wheel suspension 10.
- the leaf spring bearing 1 rests loosely against the vehicle body 20 here, so it is neither screwed on nor in any other way additionally on the support direction A.
- the form-fitting centering device 9 prevents a lateral slipping out of the nominal contact position.
- the leaf spring 11 is
- Leaf spring bearing 1 is always held pressed against the vehicle body 20 over the entire compression and rebound travel of the motor vehicle wheel suspension 10 and is thereby fixed.
- the leaf spring bearing 1 explained above enables a considerably simplified assembly of a motor vehicle wheel suspension 10 on a motor vehicle body 20. In particular, this makes it possible to mount the motor vehicle wheel suspension 10 fully automatically
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Springs (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019203366.0A DE102019203366B4 (de) | 2019-03-12 | 2019-03-12 | Kraftfahrzeugradaufhängung mit Blattfeder und Verfahren zur Montage einer solchen Kraftfahrzeugradaufhängung |
| PCT/EP2020/051073 WO2020182356A1 (de) | 2019-03-12 | 2020-01-16 | Blattfederlager und kraftfahrzeugradaufhängung mit einem solchen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3938225A1 true EP3938225A1 (de) | 2022-01-19 |
Family
ID=69182498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20701283.2A Withdrawn EP3938225A1 (de) | 2019-03-12 | 2020-01-16 | Blattfederlager und kraftfahrzeugradaufhängung mit einem solchen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11731474B2 (de) |
| EP (1) | EP3938225A1 (de) |
| KR (1) | KR102581362B1 (de) |
| CN (1) | CN113784855B (de) |
| DE (1) | DE102019203366B4 (de) |
| WO (1) | WO2020182356A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021208302B3 (de) | 2021-07-30 | 2023-01-05 | Volkswagen Aktiengesellschaft | Kraftfahrzeug-Radaufhängung mit einer Blattfedereinrichtung je Radseite |
| DE102021208301B3 (de) | 2021-07-30 | 2022-05-19 | Volkswagen Aktiengesellschaft | Kraftfahrzeug-Radaufhängung mit einer Blattfedereinrichtung je Radseite |
| DE102021208304B4 (de) | 2021-07-30 | 2023-03-23 | Volkswagen Aktiengesellschaft | Kraftfahrzeug-Radaufhängung mit einer Blattfedereinrichtung je Radseite |
| KR20240003265A (ko) * | 2022-06-30 | 2024-01-08 | 현대자동차주식회사 | 차고 조절 장치 |
| KR20250090997A (ko) * | 2023-12-13 | 2025-06-20 | 현대자동차주식회사 | 차량용 서스펜션 및 이를 포함하는 차량 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19814792A1 (de) * | 1998-04-02 | 1999-10-07 | Bpw Bergische Achsen Kg | Lenkerfeder |
Family Cites Families (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS534449B2 (de) * | 1973-05-31 | 1978-02-17 | ||
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| DE102009028896A1 (de) * | 2009-08-26 | 2011-03-03 | Zf Friedrichshafen Ag | Lagervorrichtung einer Querblattfeder |
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| JP5626007B2 (ja) | 2011-02-24 | 2014-11-19 | トヨタ自動車株式会社 | 中間ビーム位置決め装置 |
| EP2604453B1 (de) * | 2011-12-14 | 2018-06-06 | Magna Steyr Fahrzeugtechnik AG & Co KG | Querblattfeder mit einem starr verbundenen elastischen Verbindungskörper für ein Kraftfahrzeug |
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| DE102015121189B4 (de) | 2015-12-04 | 2022-07-21 | Benteler Automobiltechnik Gmbh | Blattfederhalterung zur Halterung einer Blattfeder an einem Achskörper eines Fahrzeugs |
| DE102016203738A1 (de) * | 2016-03-08 | 2017-09-14 | Zf Friedrichshafen Ag | Federeinheit für eine Radaufhängung eines Fahrzeugs sowie Radaufhängung |
| DE102016220325A1 (de) | 2016-10-18 | 2018-04-19 | Volkswagen Aktiengesellschaft | Federeinrichtung für eine Kraftfahrzeug-Radaufhängung |
| DE102016119941A1 (de) * | 2016-10-19 | 2018-04-19 | Ficht Fahrzeug + Marinetechnik Gmbh & Co. Kg | Tragfeder-Lenker-Anordnung sowie Radaufhängung aufweisend die Tragfeder-Lenker-Anordnung |
| KR102452545B1 (ko) * | 2016-12-15 | 2022-10-07 | 현대자동차주식회사 | 복합재 리프 스프링모듈 조립장치 및 그 조립방법 |
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| US11345207B2 (en) * | 2019-04-16 | 2022-05-31 | Bendix Commercial Vehicle Systems Llc | Electrically controlled suspension |
-
2019
- 2019-03-12 DE DE102019203366.0A patent/DE102019203366B4/de active Active
-
2020
- 2020-01-16 KR KR1020217032032A patent/KR102581362B1/ko active Active
- 2020-01-16 CN CN202080032109.7A patent/CN113784855B/zh active Active
- 2020-01-16 US US17/438,609 patent/US11731474B2/en active Active
- 2020-01-16 EP EP20701283.2A patent/EP3938225A1/de not_active Withdrawn
- 2020-01-16 WO PCT/EP2020/051073 patent/WO2020182356A1/de not_active Ceased
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| DE19814792A1 (de) * | 1998-04-02 | 1999-10-07 | Bpw Bergische Achsen Kg | Lenkerfeder |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020182356A1 (de) | 2020-09-17 |
| DE102019203366A1 (de) | 2020-10-01 |
| CN113784855B (zh) | 2024-10-01 |
| DE102019203366B4 (de) | 2026-03-26 |
| CN113784855A (zh) | 2021-12-10 |
| US11731474B2 (en) | 2023-08-22 |
| US20220134825A1 (en) | 2022-05-05 |
| KR20210132713A (ko) | 2021-11-04 |
| KR102581362B1 (ko) | 2023-09-25 |
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