SE2050486A1 - A positioning arrangement, a vehicle comprising such an arrangement and a method of positioning a position sensitive device in a vehicle - Google Patents

A positioning arrangement, a vehicle comprising such an arrangement and a method of positioning a position sensitive device in a vehicle

Info

Publication number
SE2050486A1
SE2050486A1 SE2050486A SE2050486A SE2050486A1 SE 2050486 A1 SE2050486 A1 SE 2050486A1 SE 2050486 A SE2050486 A SE 2050486A SE 2050486 A SE2050486 A SE 2050486A SE 2050486 A1 SE2050486 A1 SE 2050486A1
Authority
SE
Sweden
Prior art keywords
bushing
housing
cylindrical
positioning arrangement
opening
Prior art date
Application number
SE2050486A
Other versions
SE544525C2 (en
Inventor
Mårten Sylwan
Original Assignee
Scania Cv Ab
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 Scania Cv Ab filed Critical Scania Cv Ab
Priority to SE2050486A priority Critical patent/SE544525C2/en
Priority to DE102021108321.4A priority patent/DE102021108321A1/en
Priority to BR102021007436-1A priority patent/BR102021007436A2/en
Publication of SE2050486A1 publication Critical patent/SE2050486A1/en
Publication of SE544525C2 publication Critical patent/SE544525C2/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/20—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening
    • F16B2/22—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material
    • F16B2/24—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material of metal
    • F16B2/241—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material of metal of sheet metal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/02—Housings
    • G01P1/026—Housings for speed measuring devices, e.g. pulse generator
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24423—Mounting means or means for restraining during shipping

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Vehicle Body Suspensions (AREA)
  • Insertion Pins And Rivets (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

The invention relates to a positioning arrangement (1) for positioning a position sensitive device (10). The positioning arrangement (1) comprises a bushing (2) and a housing (3) in which the position sensitive device (10) is provided, wherein the bushing (2) is a cylindrically shaped sheet including a longitudinal slit (5), the bushing (2) being arranged to fit inside a cylindrical opening (17). The housing (3) includes a cylindrical body (6) arranged to fit inside the bushing (2), and a guiding protrusion (7) is arranged longitudinally along the cylindrical body (6), wherein the guiding protrusion (7) is arranged to fit inside the longitudinal slit (5) of the bushing (2) when the bushing (2) is positioned inside the cylindrical opening (17), so as to angularly lock the housing (3) with respect to the bushing (2) and with respect to the cylindrical opening (17). The invention also relates to a vehicle comprising a positioning arrangement and to a method of arranging a position sensitive device in a vehicle (12).

Description

A POSITIONING ARRANGEMENT, A VEHICLE COMPRISING SUCH ANARRANGEMENT AND A METHOD OF POSITIONING A POSITION SENSITIVEDEVICE IN AVEHICLE TECHNICAL FIELD The invention relates to a positioning arrangement and to a vehicle including such apositioning arrangement. Further the invention relates to a method of positioning a position sensitive device in an angularly locked position in a vehicle.
BACKGROUND ln the automotive industry of today many sensor devices are provided at differentpositions inside and around a vehicle. Typical example of such sensor devices arerotation sensors, rain sensors, speed sensors, driver aiding cameras and the like. Manyof these sensor devices are provided in relatively exposed positions and many devicesare position sensitive such that it is of uttermost importance that they are provided in an accurate and secure position in the vehicle. ln some applications a cylindrical sensor is provided in a cylindrical opening. ln the priorart it is common to provide such a sensor with a protruding element and to provide acorresponding axial recess or track along one side of the cylindrical opening in order toreceive the protruding element sensor to thereby ascertain that the sensor is mountedinside the cylindrical opening in an angularly correct position. This arrangement demandsthat a track or the like is machined inside the otherwise cylindrical opening. For a skilledperson it is always interesting to minimise the number of machining steps. Other solutions have therefore been considered. ln EP 1 284 424 A2 a sensor fastening arrangement is disclosed in which a rotationsensor is arranged opposed to a rotation wheel for sensing the rotation of a rotating axle.ln order to correctly register the rotation, the sensor needs to be provided in a correctangular position with respect to the rotation wheel. This is solved by means of a mountingbracket with a guide pin for guiding the mounting bracket into a correct position. Thesensor comprises a protruding element so as to correctly position a sensor with respectto the mounting bracket. This is an effective but complicated solution to the problem ofcorrectly positioning a position sensitive device in an angularly locked position in a vehicle. lt would be advantageous to achieve an arrangement and method overcoming, or at least alleviating, at least one or some of the drawbacks of the prior art.
SUMMARY OF THE INVENTION lt is an object of the invention to provide an arrangement and method that enablespositioning of a position sensitive device, which is readily implementable in an existingconstruction without the need for machining or any other specific adaptation of the structure in which the position sensitive device is to be positioned.
This object is achieved by means of the invention in accordance with the first, second and third aspect thereof.
According to a first aspect the invention relates to a positioning arrangement comprisinga position sensitive device, the positioning arrangement comprising: - a bushing, and - a housing in which the position sensitive device is provided, wherein the bushing is a cylindrically shaped sheet including a longitudinal slit, thebushing being arranged to fit inside a cylindrical opening, the housing includes a cylindrical body arranged to fit inside the bushing, and the sensor comprises a guiding protrusion extending longitudinally along the cylindricalbody, wherein the guiding protrusion is arranged to fit inside the longitudinal slit of the bushingwhen the bushing is positioned inside the cylindrical opening, so as to angularly lock the housing with respect to the bushing and With respect to the cylindrical opening.
The invention solves the problem of arranging a sensor in a cylindrical opening in acontrolled rotational position by means of the position guiding of the bushing's slit. Thesolution is specifically advantageous in that it allows for rotational control without thenecessity of performing machining inside the cylindrical opening. Preferably, the bushingis arranged to fit tightly inside a cylindrical opening so as to guarantee that it stays put.The bushing with a longitudinal slit is a most relevant part of the inventive positioningarrangement. The specific design of the bushing may however vary as long as a position locking slit is provided by the bushing. ln view of that the guiding protrusion facilitates the angular locking of the housing withrespect to the bushing and with respect to the cylindrical opening it may also be referred to as a rotational locking element.
According to embodiments of the positioning arrangement the bushing is comprised of a corrosion resistant material.
A problem in the prior art is that corrosion may affect the interaction between the sensorand the surrounding cylindrical opening, such that it may not be possible to securelyremove the sensor from the opening, if desired. This problem is effectively solved by arranging a corrosion resistant bushing outside the housing.According to specific embodiments the bushing is comprised of stainless steel.
This presents a long lasting and rigid solution to the corrosion problem. Further, stainless steel is a rigid material providing a reliable press fit inside a cylindrical opening.
According to embodiments of the positioning arrangement the bushing has a cylindricalperipheral surface, which is interrupted by the longitudinal slit, and wherein the cylindricalperipheral surface on at least one axial end portion of the bushing comprises acircumferential chamfer at which an outer diameter of the cylindrical peripheral surface decreases axially outwards from a central portion of the bushing.
The circumferential chamfer is advantageous for two reasons, depending on which side of the bushing that is first entered into the cylindrical opening.
Firstly, when the bushing is entered with the chamfer at its leading end, the chamfermakes it easier to enter the bushing into the opening. Further though, when the bushingis entered with the chamfer at its trailing end, it facilitates removing of the bushing if thisis desired. This is due to that that the chamfer, when arranged to face the orifice of theopening, effectively allows for a tool to grip the bushing and press it inwards such that it may be compacted in diameter and easily removed from the opening.
According to embodiments of the positioning arrangement the longitudinal slit, in at leastone axial end portion of the bushing, has a widened portion, in which a gap width of the longitudinal slit increases gradually axially outwards from a central portion of the bushing.
The widened portion allows for the guiding protrusion of the housing's cylindrical body to easier enter inside the longitudinal slit of the bushing.
According to embodiments of the positioning arrangement the longitudinal slit, in a centralportion of the bushing, has a constant gap width, arranged to guide the guiding protrusion of the housing during entrance thereof and to clamp it when inserted.
The constant gap width provides an alternative of securing the housing without unduly complicating the entering/insertion of it.
According to embodiments of the positioning arrangement the bushing has a symmetrical shape and comprises two opposed axial end portions of the same shape.
The bushing may hence be reflectionally symmetrical with respect to a plane of symmetryextending through the centre of the bushing with respect to its longitudinal extensionalong its longitudinal axis X, such that the normal to the plane of symmetry is parallel to the longitudinal axis X of the bushing.
Further though, the bushing may also be reflectionally symmetrical with respect to alongitudinal section along the axial direction X of the bushing, which longitudinal sectionruns in the centre of the longitudinal slit and along the diametrically opposed part of the bushing.
The symmetric design of the bushing has several advantages, including the facilitation ofthe machining of the bushing, and the facilitation of the mounting thereof, as the bushing may be mounted in either direction with maintained advantages.
According to embodiments of the positioning arrangement an axial locking unit isarranged to lock the housing from axial movement, so as to prevent the housing from moving out from the cylindrical opening.
According to embodiments of the positioning arrangement the axial locking unit iscomprised of a cylindrical spring sleeve arranged to be positioned between the bushingand the cylindrical body of the housing, the spring sleeve including resilient portionsarranged to provide a friction lock between the bushing and the cylindrical body of the housing.
This is an advantageous way of achieving a secure fastening of the housing inside thebushing. ln addition to providing the desired securing of the housing, the spring sleevealso provides an additional allowance for the precision of the diameter of the bushing, thediameter of the cylindrical body of the housing, and to a certain extent to the precision ofthe diameter of the cylindrical opening. The last effect is due to that the bushing isdeformable and will fill out the full diameter of the cylindrical opening, up to a certainpoint.
According to embodiments of the positioning arrangement the axial locking unit comprises a longitudinal gap opening arranged to overlap the longitudinal slit of the bushing and to allow access of the guiding protrusion into the longitudinal slit of the bushing.
According to embodiments of the positioning arrangement the axial locking unitcomprises a guide member arranged to interact with the longitudinal slit of the bushing soas to angularly lock the axial locking unit with respect to the bushing and with respect to the cylindrical opening. ln this way the mounting of the axial locking unit is fail-safe, in that it may only be inserted into a correct position.
According to a second aspect the invention relates to a vehicle comprising a cylindricalopening for holding a position sensitive device, wherein a positioning arrangement as presented above is arranged in the cylindrical opening.
The vehicle may comprise a plurality of cylindrical openings for holding position sensitivedevices and a plurality of positioning arrangements may be arranged in different cylindrical openings in the vehicle.
According to a third aspect the invention relates to a method of positioning a positionsensitive device in an angularly locked position in a vehicle, the method comprising: - inserting a bushing into a cylindrical opening provided to house a sensor, thebushing having a cylindrical shape with a longitudinal slit, - ensuring that the bushing is securely positioned in a correct rotational positionwith the longitudinal slit arranged in a predefined angular segment with respect to thecylindrical opening, - providing a housing for housing the position sensitive device, the housingincluding a cylindrical body with a guiding protrusion extending longitudinally along thecylindrical body, and - inserting the housing into the cylindrical opening in a rotational direction thatallows the guiding protrusion to slide into the longitudinal slit so as to angularly lock the housing with respect to the bushing and With respect to the cylindrical opening.
According to embodiments of the method the inserting of the bushing into the cylindricalopening is performed by the aid of a reference point, and wherein the ensuring that thebushing is securely positioned in a correct rotational position is made with respect to the reference point.
The reference point may either be a specific detail on the axle part that comprises thecylindrical opening, or it may be a reference point in the mounting arrangement whichmakes sure that, as long as the axle part has a known position with respect to themounting arrangement, the bushing will be securely positioned in a correct rotationa| position inside the cylindrical opening.
According to embodiments of the method the housing is secured inside the cylindricalopening by arranging an axial locking unit in the form of a cylindrical spring s|eeve insidethe bushing prior to inserting the housing, wherein the spring s|eeve includes resilientportions arranged to provide a friction lock between the bushing and the cylindrical body of the housing.
The method is well adapted to be implemented for all embodiments of the positioning arrangement as described above.
Additional embodiments and advantages of the invention are apparent from the detailed description and the appended drawings.BRIEF DESCRIPTION OF THE DRAWINGS Below, specific embodiments of the invention will be described with reference to the appended drawings, of which: Fig. 1 is a perspective view of a part of a vehicle in accordance with an aspect of the invention,Fig. 2 is a detailed perspective view of a part of a vehicle, Fig. 3 is a perspective view of an exemplary implementation of the invention, in which the position sensitive device is a rotations sensor,Fig. 4 is a view the rotation sensor of Fig. 3, from above,Fig. 5 is a illustrative view of the position sensitivity of the rotation sensor of Fig. 3, Fig. 6 is a side view of an assembled positioning arrangement in accordance with an aspect of the invention,Fig. 7 is a perspective exploded view of the positioning arrangement of Fig. 6, Fig. 8 is a partial view of a possible implementation of the positioning arrangement in accordance with an aspect of the invention, and Fig. 9 is a perspective view of an embodiment of bushing forming part of a positioning arrangement.
DETAILED DESCRIPTION OF THE SHOWN E|\/|BOD||\/IENTS Fig. 1 schematically depicts parts of a chassis 13 of a vehicle 12. Specifically, the vehiclecomprises at least four wheels, of which two front wheels 19 are shown in Fig. 1. Theinvention includes at least one positioning arrangement in accordance with a first aspectof the invention. ln the specific embodiment the positioning arrangement relates to asensor for registering of a rotation in a vehicle. The sensor may be arranged in an axle part 14 at a front wheel axle of the vehicle. ln Fig. 2 an axle part 14 is shown in detail. The axle part 14 carries a wheel axle (notvisible) on which a wheel mounting frame 15 for mounting a wheel is arranged. A brakedisc 16 is arranged on the same wheel axle, i.e. common wheel axle, as the mountingframe 15. Further, in accordance with an exemplary embodiment of the invention a pulsewheel 20 is arranged on the common wheel axle. A cylindrical opening 17 is provided in the axle part 14 for receiving a position sensitive device provided in a housing 3.
A positioning arrangement 1 is provided for correctly positioning a position sensitivedevice provided in a housing 3. ln addition to the housing 3, the positioning arrangement1 comprises a bushing 2 arranged to be arranged inside a cylindrical opening 17 and toreceive the housing 3 in an inner space formed inside it. ln the shown embodiment, thepositioning arrangement 1 also comprises an axial locking unit 4 arranged to securelyclamp the housing 3 inside the bushing and to make sure that the housing 3 will stay putinside the cylindrical opening 17 and not glide out from it. Also shown in Fig. 2 is anexemplary reference point 18, which may be used for positioning the bushing 2 and the housing 3 in a correct position. ln Figs. 3-5 a specific embodiment of a position sensitive device 10 provide in a housing3 is illustrated. ln the shown embodiment, the position sensitive device 10 is a sensorhead for registering the rotation of pulse wheel 20, which is preferably arranged on thecommon axle as a wheel of a vehicle. The pulse wheel 20 includes pulse segments 21 which are registered by the position sensitive device 10.
As is apparent from Figs. 3 and 4, the position sensitive device 10, i.e. sensor head,needs to be positioned very close to the pulse wheel 20 but not in direct contacttherewith. Further, as is illustrated in Fig. 5, the position sensitive device 10 needs to be positioned in an angularly correct position. Namely, the sensor head (position sensitive device 10) includes three discrete sensor units that need to be aligned in a correctangular segment in order to correctly register the passing of the pulse segments 21. Atypical allowable angular error range 2oi may be 20-40°, i.e. 10-20° in either angulardirection around the longitudinal axis X of the cy|indrica| body 6 of the housing 3.However, the allowable angular error range 2oi may vary greatly in dependence of type of product and between similar products from different manufacturers.
Fig. 6 is a side view of an assembled positioning arrangement 1 in accordance with anembodiment according to a first aspect, and Fig. 7 is a perspective exploded view of the same positioning arrangement 1.
The positioning arrangement1 comprises a bushing 2 and a housing 3 in which a position sensitive device 10 is provided, The bushing 2 is a cylindrically shaped sheet adapted to fit inside a cy|indrica| opening,typically with a very tight fit, such that it will stay in place once inserted into the cy|indrica|opening. The bushing 2 include a longitudinal slit 5 extending all along its longitudinalaxis X. The longitudinal slit 5 allows for the bushing 2 to be elastically compressed to areduced diameter such that it may be inserted into a cy|indrica| opening of a slightlysmaller inner diameter than the unstressed outer diameter of the bushing 2. Once thebushing 2 has been inserted into the cy|indrica| opening the press action will be relieved and the bushing 2 will be press fitted at location inside the cy|indrica| opening.
The housing 3 includes a cy|indrica| body 6 arranged to fit inside the bushing 2. A guidingprotrusion 7 is arranged longitudinally along the cy|indrica| body 6, and the guidingprotrusion 7 is arranged to fit inside the longitudinal slit 5 of the bushing 2 when thebushing 2 is positioned inside the cy|indrica| opening 17. The guiding protrusion 7protrudes or extends outwards from the cy|indrica| body 6 in a radial direction withrespect to the cy|indrica| body 6. The interaction between the guide element 7 and thecy|indrica| opening 17 acts to angularly lock the housing 3 with respect to the bushing 2and, in view of that the bushing 2 is press fitted and angularly locked in the cy|indrica|opening 17, the housing 3 will also be angularly locked with respect to the cy|indrica| opening 17.
The bushing 2 is advantageously comprised of a corrosion resistant material such a as a stainless steel. ln the shown embodiment the positioning arrangement 1 also includes an axial locking unit 4 to lock the housing 3 from axial movement, so as to prevent it from moving out of the cylindrical opening 17. The shown axial locking unit 4 consist of a cylindrical springsleeve arranged to be positioned between the bushing 2 and the cylindrical body 6 of thehousing 3. The spring sleeve includes resilient portions 8 arranged to provide a friction lock between the bushing 2 and the cylindrical body 6 of the housing 3.
The axial locking unit 4 comprises a longitudinal gap opening 9 arranged to overlap thelongitudinal slit 5 of the bushing 2 and to allow access of the guiding protrusion 7 into thelongitudinal slit 5 of the bushing 2. Preferably the axial locking unit 4 comprises a guidemember 11 arranged to interact with the longitudinal slit 5 of the bushing 2 to facilitatecorrect insertion of the axial locking unit 4 and to angularly lock the axial locking unit 4 with respect to the bushing 2 and with respect to the cylindrical opening 17.
The axial locking unit 4 of the shown embodiment does not have a symmetrical shape.On the contrary, it is provided with stop flanges 27 at one longitudinal end, which stopflanges 27 are arranged to interact with the outer end of the bushing 2 so as to correctlyposition the axial locking unit 4 with respect to the bushing 2 in the longitudinal direction.The stop flanges 27 also effectively prohibits insertion of the axial locking unit 4 in the opposite direction.
The bushing 2, the cylindrical body 6 of the housing 3 and the axial locking unit 4 arepreferably concentrically arranged with respect to each other to hence extend in thelongitudinal direction along a common longitudinal axis X, which also coincides with the longitudinal axis of the cylindrical opening in which they are to be positioned.
Fig. 8 illustrates a typical use of the inventive positioning arrangement, in which abushing 2 has been inserted into a cylindrical opening 17 of an axle part 14 in a desired angular position.
A typical method of positioning a position sensitive device in an angularly locked positionin a vehicle 12 may include the following steps. The method may suitably beimplemented for all embodiments of the positioning arrangement described in this specification.
Firstly, a bushing 2 is inserted into a cylindrical opening 17 provided to house a position sensitive device 10, the bushing 2 having a cylindrical shape with a longitudinal slit 5, During or after the insertion of the bushing 2 it is ensured that the bushing 2 is securelypositioned in a correct rotational position with the longitudinal slit 5 arranged in a predefined angular segment with respect to the cylindrical opening 17.
A housing 3 is provided for housing the position sensitive device 10, the housing 3including a cylindrical body 6 with a guiding protrusion 7 extending longitudinally alongthe cylindrical body 6. The housing 3 is inserted into the cylindrical opening 17 in arotational direction that allows the guiding protrusion 7 to slide into the longitudinal slit 5so as to angularly lock the housing 3 with respect to the bushing 2 and with respect to thecylindrical opening 17. The cylindrical body 6 fits so tightly inside the bushing 2 that itmay only be arranged inside the bushing with the guiding protrusion 7 inside the longitudinal slit 5.
The inserting of the bushing 2 into the cylindrical opening 17 may advantageously beperformed by the aid of a reference point 18, wherein the ensuring that the bushing 2 issecurely positioned in a correct angular position is performed with respect to thereference point 18. ln the shown embodiment the reference point 18 is a point in the formof a hole in close vicinity of the cylindrical opening 17. lt may however be any point with aknown location with respect to the cylindrical opening 17. lt may for example be the wheel axle at which the axle part 14 is arranged. ln the event that the housing 3 is secured inside the cylindrical opening 17 by an axiallocking unit 4 in the form of a cylindrical spring sleeve, the axial locking unit 4 is arrangedinside the bushing 2 prior to the insertion of the housing 3. Resilient portions 8 of thespring sleeve will provide a friction lock between the bushing 2 and the cylindrical body 6 of the housing 3.ln Fig. 9 a specific embodiment of the bushing 2 is shown in detailed a perspective view.
The bushing 2 has a cylindrical peripheral surface 22, which is interrupted by thelongitudinal slit 5. The cylindrical peripheral surface 22 comprises a circumferentialchamfer 25 on one or both axial end portions 23 of the bushing 2. At the chamfer 25 theouter diameter of the cylindrical peripheral surface 22 decreases axially outwards along the longitudinal axis X from a central portion 24 of the bushing 2.
Further, the longitudinal slit 5 has a widened portion 26 in one or both axial end portions23 of the bushing 2, in which the gap width w of the longitudinal slit 5 increases graduallyaxially outwards along the longitudinal axis X from the central portion 24 of the bushing 2.ln the central portion 24 of the bushing 2, it has a constant gap width w, arranged to clamp the guiding protrusion 7 of the housing 3. ln the shown embodiment the bushing 2 has a symmetrical shape and comprises two opposed axial end portions 23 of the same shape.
Above, the invention has been described with reference to specific embodiments. Theinvention is however not limited to these embodiments. lt is obvious to a person skilled in the art that other embodiments are possible Within the scope of the following claims.

Claims (15)

1. A positioning arrangement (1 ) for positioning a position sensitive device (10), the positioning arrangement (1) comprising: - a bushing (2), and - a housing (3) in which the position sensitive device (10) is provided, wherein the bushing (2) is a cylindrically shaped sheet including a longitudinal slit (5),the bushing (2) being arranged to fit inside a cylindrical opening (17), the housing (3) includes a cylindrical body (6) arranged to fit inside the bushing (2), a guiding protrusion (7) is arranged longitudinally along the cylindrical body (6), andwherein the guiding protrusion (7) is arranged to fit inside the longitudinal slit (5) ofthe bushing (2) when the bushing (2) is positioned inside the cylindrical opening (17),so as to angularly lock the housing (3) with respect to the bushing (2) and with respect to the cylindrical opening (17).
2. The positioning arrangement (1) according to claim 1, wherein the bushing (2) is comprised of a corrosion resistant material.
3. The positioning arrangement (1) according to claim 1, wherein the bushing (2) is comprised of stainless steel.
4. The positioning arrangement (1) according to anyone of the preceding claims, wherein the bushing (2) has a cylindrical peripheral surface (22), which is interruptedby the longitudinal slit (5), and wherein the cylindrical peripheral surface (22) on atleast one axial end portion (23) of the bushing (2) comprises a circumferentialchamfer (25) at which an outer diameter of the cylindrical peripheral surface (22) decreases axially outwards from a central portion (24) of the bushing (2).
5. The positioning arrangement (1) according to anyone of the preceding claims, wherein the longitudinal slit (5), in at least one axial end portion (23) of the bushing(2), has a Widened portion (26), in which a gap width (W) of the longitudinal slit (5) increases gradually axially outwards from a central portion (24) of the bushing (2).
6. The positioning arrangement (1) according to anyone of the preceding claims, wherein the longitudinal slit (5), in a central portion (24) of the bushing (2), has a constant gap width (W), arranged to clamp the guiding protrusion (7) of the housing(s).
7.The positioning arrangement (1) according to anyone of the preceding claims,wherein the bushing (2) has a symmetrical shape and comprises two opposed axial end portions (23) of the same shape.
8. The positioning arrangement (1) according to anyone of the preceding claims,wherein an axial locking unit (4) is arranged to lock the housing (3) from axial movement, so as to prevent it from moving out from the cylindrical opening (17).
9.The positioning arrangement (1) according to c|aim 8, wherein the axial locking unit(4) is comprised of a cylindrical spring s|eeve arranged to be positioned between thebushing (2) and the cylindrical body (6) of the housing (3), the spring s|eeve includingresi|ient portions (8) arranged to provide a friction lock between the bushing (2) and the cylindrical body (6) of the housing (3).
10.The positioning arrangement (1) according to c|aim 9, wherein the axial locking unit(4) comprises a |ongitudina| gap opening (9) arranged to over|ap the |ongitudina| slit(5) of the bushing (2) and to allow access of the guiding protrusion (7) into the|ongitudina| slit (5) of the bushing (2).
11.The positioning arrangement (1) according to c|aim 10, wherein the axial locking unit(4) comprises a guide member (11) arranged to interact with the |ongitudina| slit (5) ofthe bushing (2) so as to angularly lock the axial locking unit (4) with respect to the bushing (2) and with respect to the cylindrical opening (17).
12. A vehicle (12) comprising at least one cylindrical opening (17) for holding a positionsensitive device (10), wherein a positioning arrangement (1) according to anyone of the preceding claims is arranged in the at least one cylindrical opening (17).
13. A method of positioning a position sensitive device (10) in a angularly locked positionin a vehicle (12), the method comprising: - inserting a bushing (2) into a cylindrical opening (17) provided to house aposition sensitive device, the bushing (2) having a cylindrical shape with a |ongitudina|slit (5), - ensuring that the bushing (2) is securely positioned in a correct rotationalposition with the |ongitudina| slit (5) arranged in a predefined angular segment (2oi)with respect to the cylindrical opening (17), - providing a housing (3) for housing the position sensitive device (10), thehousing (3) including a cylindrical body (6) with a guiding protrusion (7) extendinglongitudinally along the cylindrical body (6), and - inserting the housing (3) into the cylindrical opening (17) in a rotational direction that allows the guiding protrusion (7) to slide into the longitudinal slit (5) so as toangularly lock the housing (3) with respect to the bushing (2) and with respect to thecylindrical opening (17).
14. The method according to claim 13, wherein the inserting of the bushing (2) into thecylindrical opening (17) is performed by the aid of a reference point (18), and whereinthe ensuring that the bushing (2) is securely positioned in a correct rotational position is performed With respect to the reference point (18).
15. The method according to claim 14, wherein the housing (3) is secured inside thecylindrical opening (17) by arranging an axial locking unit (4) in the form of acylindrical spring sleeve inside the bushing (2) prior to inserting the housing (3),wherein the spring sleeve includes resilient portions (8) arranged to provide a frictionlock between the bushing (2) and the cylindrical body (6) of the housing (3).
SE2050486A 2020-04-29 2020-04-29 A positioning arrangement, a vehicle comprising such an arrangement and a method of positioning a position sensitive device in a vehicle SE544525C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE2050486A SE544525C2 (en) 2020-04-29 2020-04-29 A positioning arrangement, a vehicle comprising such an arrangement and a method of positioning a position sensitive device in a vehicle
DE102021108321.4A DE102021108321A1 (en) 2020-04-29 2021-04-01 Mounting arrangement, vehicle with such an arrangement and method for mounting a position-sensing device in a vehicle
BR102021007436-1A BR102021007436A2 (en) 2020-04-29 2021-04-19 POSITIONING ARRANGEMENT, A VEHICLE COMPRISING SUCH ARRANGEMENT AND A METHOD OF POSITIONING A POSITION-SENSITIVE DEVICE IN A VEHICLE

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5063345A (en) * 1989-10-19 1991-11-05 Nissan Motor Co., Ltd. Apparatus for determining a rotational speed of a vehicle wheel
US20110023265A1 (en) * 2007-11-22 2011-02-03 Singbartl Guenther Adapter bushing for a sensor
US20160146847A1 (en) * 2013-06-29 2016-05-26 Wabco Gmbh Vehicle wheel speed detection system and method
US20180112698A1 (en) * 2015-04-10 2018-04-26 Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh Clamping sleeve and a method for producing a clamping sleeve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6546824B2 (en) 2001-08-16 2003-04-15 Deere & Company Sensor mounting assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5063345A (en) * 1989-10-19 1991-11-05 Nissan Motor Co., Ltd. Apparatus for determining a rotational speed of a vehicle wheel
US20110023265A1 (en) * 2007-11-22 2011-02-03 Singbartl Guenther Adapter bushing for a sensor
US20160146847A1 (en) * 2013-06-29 2016-05-26 Wabco Gmbh Vehicle wheel speed detection system and method
US20180112698A1 (en) * 2015-04-10 2018-04-26 Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh Clamping sleeve and a method for producing a clamping sleeve

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SE544525C2 (en) 2022-06-28
BR102021007436A2 (en) 2021-11-09

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