EP4188728A1 - Zustandsanzeige - Google Patents
ZustandsanzeigeInfo
- Publication number
- EP4188728A1 EP4188728A1 EP21749625.6A EP21749625A EP4188728A1 EP 4188728 A1 EP4188728 A1 EP 4188728A1 EP 21749625 A EP21749625 A EP 21749625A EP 4188728 A1 EP4188728 A1 EP 4188728A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- unit
- geometry
- reference geometry
- wear
- status display
- 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.)
- Pending
Links
- 239000000725 suspension Substances 0.000 claims abstract description 9
- 230000008859 change Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000011664 signaling Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000016776 visual perception Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/001—Suspension arms, e.g. constructional features
-
- 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
-
- 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
- B60G2204/14—Mounting of suspension arms
- B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
-
- 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
-
- 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
- B60G2206/60—Subframe construction
- B60G2206/601—Hanger bracket
Definitions
- the present invention relates to a status display, in particular for use in the chassis of a commercial vehicle.
- a status display is provided, particularly preferably for use on the wheel suspension of a vehicle, which has a first reference unit and a second reference unit, the first and second reference units being mounted or attached to one another via a holding unit, the first reference unit having a first reference geometry wherein the second reference unit has a second reference geometry, the position of the first reference geometry relative to the second reference geometry being optically or haptically detectable or readable by a user or a detection device at least when the holding unit is in a state of wear.
- the status display thus detects two mutually mounted or fixed assemblies, the first and the second reference unit and a holding unit connecting these two assemblies, with the status display being used in particular to provide information about the state of wear of the holding unit.
- the holding unit When the holding unit is worn, which results in a state of wear, the position of the first reference unit relative to the second reference unit changes, and this can be easily read or determined optically or haptically by a user, in particular by means of two reference geometries.
- the holding unit is a load-bearing structural group on the vehicle, which positions the reference units relative to one another, wear and tear on the holding unit resulting in a changed positioning of the reference units relative to one another.
- an optical signaling of a state of wear it can be provided, for example, that one of the two reference geometries remains in a specific position relative to the other reference geometry, with this position signaling a specific status of the holding unit to the user of the status display.
- such a position of the first reference geometry relative to the second reference geometry can be determined by a user.
- the status display according to the invention it is possible to recognize whether the wear status is present or not, without dismantling the components of the chassis involved.
- the state of wear of the holding unit is advantageously characterized by permanent deformation of the holding unit due to wear.
- plastic deformation or a local change in geometry caused by continuous loading due to material fatigue or, for example, local material shrinkage due to abrasive wear is the cause of the wear condition.
- This state of wear is often characterized in that the mounting of the first reference unit and the second reference unit together has a large amount of play, which can cause an adverse change in the handling of the vehicle. It is therefore necessary to replace the holding unit when it is worn out.
- the first reference geometry is preferably designed as a recess through which the second reference geometry can be seen in the state of wear.
- the first reference geometry is designed as a specifically arranged recess in the first reference unit, through which the position of the second reference geometry can be determined in the state of wear.
- the second reference geometry is preferably designed as a notch or marking on a component of the second reference unit.
- the second reference geometry can thus be set very precisely on the second reference unit and increases the accuracy when determining the state of wear.
- the first reference geometry and/or the second reference geometry advantageously has a scale which allows the position of the second reference unit to be determined relative to the first reference unit.
- the scale is preferably a scale mechanically embossed into the material of the first reference unit in the area of the first reference geometry. Alternatively, a scale printed in a contrasting color on the first or the second reference unit is preferred.
- the scale allows in particular the detection of intermediate stages between a fully functional holding unit and a completely and dangerously worn holding unit. This allows the user of the status display to plan ahead with regard to maintenance measures that may be required on the vehicle's chassis.
- the second reference geometry is advantageously a section of an outer surface of a solid which is fixed to the second reference unit.
- a further component for example a spacer disk or a thrust washer, on which a corresponding second reference geometry is provided, can advantageously be present on the second reference unit. This becomes visible in the area of the first reference unit when the state of wear is present.
- the advantage The use of a further component on which the second reference geometry is provided is that a special color highlighting can be made on the component here, with the remaining areas of the chassis remaining unchanged.
- the second reference geometry is designed as a projection and designed to permanently deform and/or deflect the first reference geometry when the state of wear is reached, with the deformed or deflected state of the first reference geometry signaling the presence of the state of wear to a user.
- a mechanical displacement of a first reference geometry and the second reference geometry in order to give a user a simple way to signal the presence of the locking state.
- a second reference geometry in the form of a projection can in particular deform the first reference geometry accordingly, i.e.
- the deformation of the first reference geometry can also be used to transmit a switch for electrical signaling of the state of wear to the driver's cab of the vehicle.
- the first reference unit preferably comprises a bearing block of a chassis, the second reference unit comprising a link element suspended pivotably on the bearing block, the holding unit having a bolt element and a bushing which are designed to support the link element relative to the bearing block.
- the status display is thus integrated into the suspension of a link element on an undercarriage, which is usually realized by means of a bearing block.
- the first reference unit preferably comprises the bearing block, with the bearing block advantageously being fastened to the frame of a chassis of a vehicle with further add-on parts.
- the second reference unit includes the link, preferably a trailing link.
- Both reference units are connected via a holding unit, which preferably has a bolt element fixed to the bearing block and a bushing, the bushing in turn allowing the link element to be pivoted.
- a holding unit which preferably has a bolt element fixed to the bearing block and a bushing, the bushing in turn allowing the link element to be pivoted.
- preferably rubber bushings or other elastically deformable or wear-reducing metal bushings are used as bushings.
- the socket is the component whose wear is to be monitored by the status display. A permanent displacement of the second reference unit relative to the first reference unit due to permanent deformation or damage to the socket of the holding unit thus serves as an indication that the holding unit is in a state of wear.
- the first reference geometry is advantageously arranged on one leg of the bearing block between the fastening area of the bearing block on a frame of the vehicle and the receiving area of the bolt element on the bearing block, with the second reference geometry being displaced in the state of wear due to the weight of the vehicle in such a way that its position can be read or determined haptically or optically on or in the first reference geometry.
- the first reference geometry is thus provided above the fastening area for the bearing bolt, on which the handlebar element is pivotably suspended on the bearing block.
- the second reference geometry is advantageously the outer surface of a bearing eye of the link element.
- the second reference geometry is preferably designed as a color-coded outer surface of a bearing eye of the link element, and when the holding unit wears, this outer surface moves into the area visible through the first reference geometry, and the state of wear can thus be detected, in particular optically.
- the second reference geometry is an outer surface of a disk element, which is arranged between the bearing block and the link element and held by the bolt element.
- the disc element can be a thrust washer in the area of the handlebar suspension, in which case the disc element can, in particular, allow precise determination of the locked state by setting the outer diameter of the disc element accordingly and thus, with a specific offset of the second reference unit relative to the first reference unit Outer surface of the disc element, which serves as the second reference geometry can be visible in the first reference geometry. In this way, an exact value can be set for the corresponding wear, which must at least be present on the holding unit in order to be represented as a state of wear that requires replacement or repair of the holding unit.
- the first and/or the second reference geometry advantageously has at least one signal color.
- a signal color in particular red or yellow, or a mixture of different signal colors, enables an user to clearly recognize whether the running gear has reached the state of wear and maintenance needs to be carried out, or whether this is not yet the case.
- Signal colors are a cost-effective means that can be attached to the status display without additional devices, such as electric lights, in order to improve the perceptibility of the corresponding position of the first reference geometry and the second reference geometry.
- a series of different signal colors can also function as a scale.
- a first color area which is green for example, can indicate on the first or the second reference geometry that there is still no wear, with adjacent yellow and red color areas indicating that maintenance should be carried out or must be carried out urgently.
- a status display is provided according to the invention, particularly preferably for use on the wheel suspension of a vehicle, which has a first reference unit and a second reference unit, the first and the second reference unit being mounted or attached to one another via a holding unit, the first reference unit having a first reference geometry has, wherein the second reference unit has a second reference geometry, the position of the first reference geometry relative to the second reference geometry is an expression of a specific wear of the holding unit.
- this preferred status display according to the invention is characterized in that instead of the immediate haptic or visual perception of the state of wear, the position of the first and the second reference geometry is used to transmit a specific display signal to a display unit , which reflects the state of wear accordingly.
- the display unit can have at least one optical and/or acoustic display element, such as a loudspeaker, an LED or a digital display on a corresponding monitoring screen.
- the corresponding component that activates or deactivates the at least one display element or several display elements can be a contact which is closed or opened by the relative movement of the first and the second reference geometry to one another.
- the display unit advantageously has at least one sensor which is designed to determine the position of the first reference geometry relative to the second reference geometry.
- a sensor for example, a light barrier that advantageously works in a contactless manner comes into consideration.
- a potentiometer can be used as a sensor, which outputs a certain voltage depending on the position of the first reference geometry relative to the second reference geometry, which can be used to output the state of wear in the most precise manner from the display unit.
- FIG. 1 shows a preferred embodiment of a status display according to the invention
- FIG. 2 shows the embodiment of the status display shown in FIG. 1 in the state of wear
- FIG. 3 shows a schematic view of a further preferred embodiment of the status display according to the invention.
- the first reference unit 2 includes a bearing block 24 which can be fixed to the frame of a vehicle with a mounting area 25 on its upper side. Furthermore, the bearing block 24 has an area in which a link element 44 of the second reference unit 4 can be pivotally fixed by means of a bolt element 62 . In this case, the link element 44 is preferably above a bushing (not shown) mounted on bolt member 62 .
- the enlarged view of the area above the fastening of the bolt element 62 shown on the right shows that a first reference geometry 22 is formed on the bearing block 24 , which in the present embodiment is made as a circular hole in the material of the bearing block 24 .
- a first reference geometry 22 is formed on the bearing block 24 , which in the present embodiment is made as a circular hole in the material of the bearing block 24 .
- no outer surface of the second reference unit can be seen through the first reference geometry 22. This means that the chassis system from FIG. 1 is not in the wear state V.
- Fig. 2 shows the chassis system of Fig. 1 in the state of wear V. It can be seen, analogous to the parts of the chassis system described in Fig. 1, in the enlarged representation of the first reference geometry 22 that there the link element 44 relative to the first reference unit 2 has migrated upwards and whose corresponding outer surface is visible through the second reference geometry 22. This signals to the user of the status display that the holding unit 6 is so worn that the proper mounting of the link element 44 on the bearing block 24 is no longer guaranteed. If the state shown in FIG. 2 were present, the user would therefore be required to perform maintenance on the vehicle's chassis system.
- Fig. 3 shows a further preferred embodiment in which the first reference unit 2 also has a bearing block 24, the first reference geometry 22 being a rectangular slot in the material of the bearing block 24 is introduced.
- the first reference geometry 22 has a scale 26, by means of which the precise positioning of the second reference unit, in particular the second reference geometry 42 in the first reference geometry 22, can be read.
- the bearing eye 45 of the link element 44 which is preferably provided on the second reference unit 4, is shown in dashed lines.
- the first reference geometry 22 is in the form of a nose-shaped section on the material of a sheet-like component of the first reference unit 2 .
- the second reference geometry 42 is designed as a projection, which is preferably designed in one piece on one of the components of the second reference unit 4 .
- the corresponding component of the second reference unit 4 is advantageously a link element 44.
- the second reference geometry 42 is disengaged from the first reference geometry 22. Only when there is increasing wear on the bushing 64 of the holding unit 6 arises and a correspondingly secure mounting of the second reference unit 4 is no longer guaranteed, the second reference geometry 42 is displaced relative to the first reference unit 2 in such a way that the second reference geometry 42 permanently deforms or deflects the first reference geometry 22 so that it moves to the right in the Figure is pivoted.
- the first reference geometry 22 allows a user to haptically determine the state of wear V on the chassis, since the position of the first reference geometry 22 can be determined by simply touching a corresponding area on the first reference unit 2 .
- the first reference geometry 22 can also be characterized, for example, by a swiveling suspension, which allows a specific section of the first reference geometry 22 to be swiveled out easily, with the corresponding maintenance work being carried out on Suspension pivots the first reference geometry 22 back into its state in which it signals no state of wear V.
- FIG. 5 shows a further preferred embodiment of the status display according to the invention, the second reference geometry 42 being provided on an additional component, a disk element 66 fixed on the bolt element 62 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
- Braking Arrangements (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020119968.6A DE102020119968B4 (de) | 2020-07-29 | 2020-07-29 | Zustandsanzeige |
| DE102020120524 | 2020-08-04 | ||
| PCT/EP2021/070979 WO2022023327A1 (de) | 2020-07-29 | 2021-07-27 | Zustandsanzeige |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4188728A1 true EP4188728A1 (de) | 2023-06-07 |
Family
ID=77180031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21749625.6A Pending EP4188728A1 (de) | 2020-07-29 | 2021-07-27 | Zustandsanzeige |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US12337644B2 (de) |
| EP (1) | EP4188728A1 (de) |
| CN (1) | CN116133877A (de) |
| WO (1) | WO2022023327A1 (de) |
Family Cites Families (57)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2639342A (en) * | 1950-11-14 | 1953-05-19 | Archie C Cope | Low tire indicator |
| US2741673A (en) * | 1953-10-16 | 1956-04-10 | Homer J Metealf | Flat tire signal |
| US2917020A (en) * | 1958-03-10 | 1959-12-15 | Paul J Rivers | Flat tire alarm |
| US3055998A (en) * | 1960-05-10 | 1962-09-25 | Jerry L Collins | Tire deflation indicator |
| US3602885A (en) * | 1969-08-27 | 1971-08-31 | Ruben Grajeda | Trailer flat tire warning device |
| US3680523A (en) * | 1970-10-28 | 1972-08-01 | Thomas Gaskins | Pressure indicator |
| US3736665A (en) * | 1970-10-30 | 1973-06-05 | Maurex Inc | Device for testing ball joints, king pins and the like |
| US3791748A (en) * | 1972-04-17 | 1974-02-12 | Dart Ind Inc | Ball joint with manually operable, sensible wear indicator |
| GB1490874A (en) * | 1974-12-23 | 1977-11-02 | Automotive Prod Co Ltd | Pivot joints |
| US3999870A (en) * | 1976-05-10 | 1976-12-28 | General Motors Corporation | Preloaded ball joint with integrated grease fitting |
| US4070121A (en) * | 1976-12-20 | 1978-01-24 | Moog Automotive, Inc. | Wear indicating ball joint |
| JPS5815323B2 (ja) * | 1980-12-26 | 1983-03-25 | 住友ゴム工業株式会社 | チユ−ブレスタイヤの内圧低下警報装置 |
| US4576499A (en) * | 1981-04-06 | 1986-03-18 | O & S Manufacturing Company | Ball and socket joints with wear indicator |
| FR2506014B1 (fr) * | 1981-05-14 | 1987-08-21 | Brisard Gerard | Appareil de bord pour controler les amortisseurs de suspension |
| US4540188A (en) * | 1984-04-19 | 1985-09-10 | General Motors Corporation | Automatic vehicle level control |
| JPS6127305A (ja) * | 1984-07-19 | 1986-02-06 | Musashi Seimitsu Kogyo Kk | 摩耗表示ボ−ルジヨイント |
| US4749299A (en) * | 1987-05-26 | 1988-06-07 | Dana Corporation | Unitary compression member and wear indicator for a ball joint |
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| US5101573A (en) * | 1991-08-28 | 1992-04-07 | Mills Loren T | Automotive testing tool |
| US5327116A (en) * | 1992-12-31 | 1994-07-05 | Davidson Billy D | Low trailer tire detection device |
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| US5583481A (en) * | 1994-05-09 | 1996-12-10 | Gardner; Marvin E. | Low tire warning system |
| US5718633A (en) * | 1995-03-09 | 1998-02-17 | Meritor Heavy Vehicle Systems, Llc | Universal joint wear indicator |
| FR2773131B1 (fr) * | 1997-12-31 | 2000-03-24 | Jean Redele | Articulation a rotule pour direction de vehicule automobile |
| US6125541A (en) * | 1998-10-20 | 2000-10-03 | Moog Automotive Products, Inc. | Device and method for closing a movable socket and establishing a predetermined wear indicator distance |
| JP4435956B2 (ja) * | 1999-09-21 | 2010-03-24 | カヤバ工業株式会社 | キャスター |
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| US9315222B1 (en) * | 2015-07-14 | 2016-04-19 | Link Mfg., Ltd. | Adjustment means for a suspension hanger assembly |
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| US9452657B1 (en) * | 2015-12-22 | 2016-09-27 | Ford Global Technologies, Llc | Height determination for two independently suspended wheels using a height sensor for only one wheel |
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| US10119894B2 (en) * | 2016-02-25 | 2018-11-06 | Zf Friedrichshafen Ag | System and method for detecting overloading, wear and/or failure of a ball joint |
| DE102016107852A1 (de) * | 2016-04-28 | 2017-11-02 | Bpw Bergische Achsen Kg | Spureinstellung mit Handhebel |
| US11511582B2 (en) * | 2017-10-03 | 2022-11-29 | Hendrickson Usa, L.L.C. | Bushing with wear pad retainer |
| GB201800423D0 (en) * | 2018-01-11 | 2018-02-28 | Impressive Ideas Ltd | Display system for use in conjunction with driver protection apparatus |
| AU2019327472B2 (en) * | 2018-08-30 | 2022-03-10 | Hendrickson Usa, L.L.C. | Axle spring seat attachment assembly |
| US10539203B2 (en) * | 2019-02-13 | 2020-01-21 | Tenneco Automotive Operating Company Inc. | Replacement indicator for a shock absorber |
| US11679638B2 (en) * | 2019-12-06 | 2023-06-20 | 9176 7590 Quebec Inc. | Shock absorber |
| US11970210B2 (en) * | 2021-07-28 | 2024-04-30 | Saf-Holland, Inc. | Suspension assembly with slider arrangement |
| US12319097B2 (en) * | 2022-08-31 | 2025-06-03 | Ford Global Technologies, Llc | System and method for monitoring tire tread and recommending a tire rotation service |
-
2021
- 2021-07-27 US US18/005,909 patent/US12337644B2/en active Active
- 2021-07-27 WO PCT/EP2021/070979 patent/WO2022023327A1/de not_active Ceased
- 2021-07-27 EP EP21749625.6A patent/EP4188728A1/de active Pending
- 2021-07-27 CN CN202180059706.3A patent/CN116133877A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US12337644B2 (en) | 2025-06-24 |
| US20230322034A1 (en) | 2023-10-12 |
| WO2022023327A1 (de) | 2022-02-03 |
| CN116133877A (zh) | 2023-05-16 |
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