WO2023280614A1 - Befestigungsanordnung zur Befestigung von zwei Objekten aneinander - Google Patents
Befestigungsanordnung zur Befestigung von zwei Objekten aneinander Download PDFInfo
- Publication number
- WO2023280614A1 WO2023280614A1 PCT/EP2022/067579 EP2022067579W WO2023280614A1 WO 2023280614 A1 WO2023280614 A1 WO 2023280614A1 EP 2022067579 W EP2022067579 W EP 2022067579W WO 2023280614 A1 WO2023280614 A1 WO 2023280614A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fastening
- sensor
- plastic flange
- screw
- fastening arrangement
- Prior art date
Links
- 239000004033 plastic Substances 0.000 claims abstract description 44
- 229920003023 plastic Polymers 0.000 claims abstract description 44
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 12
- 239000011151 fibre-reinforced plastic Substances 0.000 claims description 12
- 239000012783 reinforcing fiber Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000011295 pitch Substances 0.000 description 8
- 230000002787 reinforcement Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
-
- 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
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
Definitions
- Fastening arrangement for fastening two objects to one another
- the invention relates to a fastening arrangement for fastening two objects together.
- the subject of the present invention is also a sensor arrangement for a vehicle with such a fastening arrangement.
- Sensors such as wheel speed sensors, and a large number of other vehicle components are known from the prior art, which are very often screwed to corresponding carriers in the vehicle.
- a metallic bushing is usually injected or fitted into the plastic flange. The aim is to create a completely metallically prestressed screw connection that prevents the screw connection from loosening under load in the vehicle.
- locking screws are also known from the prior art, which have serrations under the head or ribs on the screw head. These dig plastically and/or elastically into a metallic substrate.
- the screw head is designed to be harder than the metal base.
- metal lock washers are known, which also prevent loosening of the screw connection under load or at least make it more difficult.
- DE 10 2017216533 A1 discloses a sensor unit for a vehicle with a holder which includes two conductor rails, a measuring value transmitter and a plug module.
- An internal electrical interface to the transmitter is formed at the first ends of the two busbars.
- An external electrical interface for the connector module is at second ends of the two Busbars formed.
- the connector module, the holder and the alignment component are at least partially surrounded by a plastic overmoulding.
- a fastening module which includes a bushing injected into a plastic tab, is molded onto the plastic extrusion coating.
- the fastening arrangement for fastening two objects to one another with the features of independent patent claim 1 has the advantage that the screw cannot automatically loosen under load and a residual prestressing of the screw connection is retained.
- a socket in the plastic flange known from the prior art can be saved.
- the screw In order to prevent the screw from loosening by itself, the screw has a wavy profile under the head, which can be stamped on inexpensively during screw manufacture.
- the plastic flange also has a matching wave-shaped profile in the area of the contact area, which can be produced in the injection molding tool at no cost. Together with the screw, a form-fit anti-rotation lock is formed. Due to the design of the wave profiles on the screw head and the plastic flange, no further components, such as a lock washer, are advantageously required in order to prevent the screw from loosening itself under load.
- Embodiments of the present invention provide a fastener assembly for fastening two objects together, comprising a plastic flange formed on a first object and overlying a second object, and a screw including a screw head and a threaded shank.
- the plastic flange includes a through-opening through which the threaded shank of the screw is guided and screwed into a corresponding threaded hole in the second object such that an underside of the screw head rests on the plastic flange in a contact area at the edge of the through-opening.
- a first corrugated profile is applied to the contact area of the plastic flange and a harder second corrugated profile is applied to the underside of the screw head. which, when screwed on, deforms the first corrugated profile plastically and elastically and, as a result of a pretensioning force, causes a form-fit anti-rotation lock.
- a sensor arrangement for a vehicle is proposed with a sensor as the first object and a carrier as the second object.
- the sensor and the carrier are fastened to one another via such a fastening arrangement.
- embodiments of the fastening arrangement according to the invention can also be used outside of a vehicle for fastening two objects to one another.
- a sensor is understood to mean a structural unit which comprises at least one sensor element which is arranged in a housing.
- the housing of the sensor can be attached to another object, such as a carrier, via an attachment module that includes the plastic flange.
- the at least one sensor element is designed to directly or indirectly detect a physical variable or a change in a physical variable and preferably to convert it into an electrical sensor signal. This can be done, for example, by sending out and/or receiving sound waves and/or electromagnetic waves and/or via a magnetic field or changing a magnetic field and/or receiving satellite signals, for example a GPS signal.
- Optical sensor elements are also possible, which have, for example, a photo plate and/or a fluorescent surface and/or a semiconductor, which detect the incidence or intensity, wavelength, frequency, angle, etc. of the received wave, such as infrared sensor elements.
- An acoustic sensor element is also conceivable, such as an ultrasonic sensor element and/or a high-frequency sensor element and/or a radar sensor element and/or a sensor element that responds to a magnetic field, such as a Hall sensor element and/or a magnetoresistive sensor element and/or a inductive sensor element that registers the change in a magnetic field, for example via the voltage generated by magnetic induction.
- the measures and further developments listed in the dependent claims make advantageous improvements to the fastening arrangement specified in the independent claim 1 for fastening two objects to one another and to the sensor arrangement specified in the independent claim 9 possible.
- a first pitch of the first corrugated profile and a second pitch of the second corrugated profile can each be greater than a thread pitch of the threaded shank of the screw. Due to the different pitches of the corrugated profiles and the threaded shaft, the preload force is created when the screwed on. As a result, automatic unscrewing or loosening of the screw connection under load can be effectively prevented or at least made more difficult.
- the first slope of the first corrugated profile can be smaller than the second slope of the second corrugated profile.
- a height of the second corrugated profile can be greater than a height of the first corrugated profile. This can simplify screwing on the screw.
- the plastic flange can be produced as an injection molded part from a fiber-reinforced plastic.
- the fibre-reinforced plastic can be subjected to greater loads along the direction of the fibers than perpendicular to the direction of the fibres.
- the expansion behavior of the fiber-reinforced plastic along the fiber direction is less temperature-dependent than perpendicular to the fiber direction.
- the fiber-reinforced plastic creeps and relaxes more slowly along the fiber direction than perpendicular to the fiber direction when it is loaded or unloaded.
- a fiber direction of reinforcement fibers of the fiber-reinforced plastic in the pad area of the plastic flange can run radially to the through-opening in order to increase the reliability of the anti-rotation lock.
- the reinforcement fibers of the fiber-reinforced plastic can be aligned along troughs and crests of the first wave profile, so that when the screw is loosened there is a pressure load in the region of the troughs and a Tensile stress in the area of the wave crests along the reinforcing fibers runs. This significantly increases the reliability of the anti-rotation lock, since the loading when loosening is greatest along the direction of the fibers.
- Such an alignment of the reinforcing fibers can be brought about, for example, by a suitable selection of an injection point during the injection molding process.
- the plastic flange can have a thickness in the range from 2 mm to 5 mm in the contact area.
- the plastic flange can be designed as part of a fastening module of the sensor.
- the fastening module with the plastic flange can be molded onto a housing of the sensor or connected to the housing of the sensor.
- FIG. 1 shows a schematic perspective sectional view of an exemplary embodiment of a sensor arrangement according to the invention with an exemplary embodiment of a fastening arrangement according to the invention.
- FIG. 2 shows a schematic perspective representation of a screw of the fastening arrangement according to the invention from FIG. 1.
- FIG. 3 shows a schematic perspective view of the inserted into a through-opening of the plastic flange screw of the erfindungsge Permitted fastening arrangement of Fig. 1.
- Fig. 4 shows a schematic perspective representation of a fastening module of a sensor with a plastic flange of the fastening arrangement according to the invention from FIG. 1.
- the illustrated embodiment of a fastening arrangement 10 for fastening two objects 2, 9 to one another comprises a plastic flange 11, which is formed on a first object 2 and rests on a second object 9, and a Screw 15, which includes a screw head 16 and a threaded shank 18 to.
- the plastic flange 11 includes a through-opening 12 through which the threaded shank 18 of the screw 15 is guided and screwed into a corresponding threaded bore 9.1 in the second object 9 such that an underside of the screw head 16 rests on a contact area 13 at the edge of the through-opening 12 rests on the plastic flange 11.
- a first corrugated profile 14 is introduced in the bearing area 13 of the plastic flange 11 and a harder second corrugated profile 17 is introduced on the underside of the screw head 16, which plastically and elastically deforms the first corrugated profile 14 when screwed on and, as a result of a prestressing force, creates a form-fitting one Anti-rotation lock causes.
- a first pitch A of the first corrugated profile 14 and a second pitch B of the second corrugated profile 17 are each greater than a thread pitch C of the threaded shank 18 of the screw 15.
- the first pitch A of the first corrugated profile 14 is smaller than the second gradient B of the second corrugated profile 17.
- a height of the second corrugated profile 17 is greater than a height of the first corrugated profile 14.
- the plastic flange 11 is produced as an injection molded part from a fiber-reinforced plastic and has a thickness in the range of 2 mm to 5 mm in the contact area 13 .
- a fiber direction FR runs from Reinforcing fibers of the fiber-reinforced plastic in the contact area 13 of the plastic flange 11 radially to the through-opening 12.
- the reinforcement fibers of the fiber-reinforced plastic are aligned along the wave troughs 14.1 and wave crests 14.2 of the first wave profile 14, so that when the screw 15 is loosened, a pressure load occurs in the area of the wave troughs 14.1 and a tensile load in the area of the wave crests 14.2 runs along the reinforcing fibers.
- the fastening arrangement 10 in the exemplary embodiment shown is used in a sensor arrangement 1 for a vehicle 1 in order to fasten a sensor 2A as the first object 2 and a carrier 9A as the second object 9 to one another.
- a housing 7 of the sensor 2A is inserted so far into a sensor receptacle 9.2, designed as a stepped bore, of the carrier 9A that the plastic flange 11 rests on the carrier 9A.
- the plastic flange 11 in the exemplary embodiment shown is formed as part of a fastening module 5 of the sensor 2A.
- the fastening module 5 with the plastic flange 11 is connected to the housing 7 of the sensor 2A below a plug receptacle 3, which forms an external electrical interface of the sensor 2A.
- the fastening module 5 has a ring area, not designated in any more detail, which surrounds the housing 7 of the sensor.
- the fastening module 5 with the plastic flange 11 is molded onto the housing 7 of the sensor 2A below the plug receptacle 3.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020247004025A KR20240032081A (ko) | 2021-07-06 | 2022-06-27 | 두 물체를 서로 고정하기 위한 고정 장치 |
EP22735897.5A EP4367408A1 (de) | 2021-07-06 | 2022-06-27 | Befestigungsanordnung zur befestigung von zwei objekten aneinander |
CN202280047552.0A CN117642559A (zh) | 2021-07-06 | 2022-06-27 | 用于将两个物体彼此固定的固定组件 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021207069.8 | 2021-07-06 | ||
DE102021207069.8A DE102021207069A1 (de) | 2021-07-06 | 2021-07-06 | Befestigungsanordnung zur Befestigung von zwei Objekten aneinander |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023280614A1 true WO2023280614A1 (de) | 2023-01-12 |
Family
ID=82358441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/067579 WO2023280614A1 (de) | 2021-07-06 | 2022-06-27 | Befestigungsanordnung zur Befestigung von zwei Objekten aneinander |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP4367408A1 (de) |
KR (1) | KR20240032081A (de) |
CN (1) | CN117642559A (de) |
DE (1) | DE102021207069A1 (de) |
WO (1) | WO2023280614A1 (de) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH609430A5 (en) * | 1975-07-10 | 1979-02-28 | Silberring Ludwig | Process and device for securing screw connections against undesired loosenings |
EP1380757B1 (de) * | 2002-07-13 | 2005-10-19 | Electrolux Home Products Corporation N.V. | Bauteil mit Befestigungsloch |
US20070187287A1 (en) * | 2004-03-12 | 2007-08-16 | Junya Toda | Substrate storage container |
EP1975420A1 (de) * | 2007-03-29 | 2008-10-01 | Sotralu | Vorrichtung zur Montage von mindestens einem festen Teil auf einer Halterung mit Hilfe von Schrauben und Öffnungselement, das eine solche Vorrichtung umfasst |
DE102017216533A1 (de) | 2017-09-19 | 2019-03-21 | Robert Bosch Gmbh | Halter für eine Sensoreinheit |
-
2021
- 2021-07-06 DE DE102021207069.8A patent/DE102021207069A1/de active Pending
-
2022
- 2022-06-27 WO PCT/EP2022/067579 patent/WO2023280614A1/de active Application Filing
- 2022-06-27 KR KR1020247004025A patent/KR20240032081A/ko unknown
- 2022-06-27 CN CN202280047552.0A patent/CN117642559A/zh active Pending
- 2022-06-27 EP EP22735897.5A patent/EP4367408A1/de active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH609430A5 (en) * | 1975-07-10 | 1979-02-28 | Silberring Ludwig | Process and device for securing screw connections against undesired loosenings |
EP1380757B1 (de) * | 2002-07-13 | 2005-10-19 | Electrolux Home Products Corporation N.V. | Bauteil mit Befestigungsloch |
US20070187287A1 (en) * | 2004-03-12 | 2007-08-16 | Junya Toda | Substrate storage container |
EP1975420A1 (de) * | 2007-03-29 | 2008-10-01 | Sotralu | Vorrichtung zur Montage von mindestens einem festen Teil auf einer Halterung mit Hilfe von Schrauben und Öffnungselement, das eine solche Vorrichtung umfasst |
DE102017216533A1 (de) | 2017-09-19 | 2019-03-21 | Robert Bosch Gmbh | Halter für eine Sensoreinheit |
Also Published As
Publication number | Publication date |
---|---|
EP4367408A1 (de) | 2024-05-15 |
CN117642559A (zh) | 2024-03-01 |
KR20240032081A (ko) | 2024-03-08 |
DE102021207069A1 (de) | 2023-01-12 |
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