WO2022069370A1 - Partie de transmission pour un moyen de fixation, en particulier un ancrage ou une vis, ainsi qu'un moyen de fixation - Google Patents

Partie de transmission pour un moyen de fixation, en particulier un ancrage ou une vis, ainsi qu'un moyen de fixation Download PDF

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Publication number
WO2022069370A1
WO2022069370A1 PCT/EP2021/076380 EP2021076380W WO2022069370A1 WO 2022069370 A1 WO2022069370 A1 WO 2022069370A1 EP 2021076380 W EP2021076380 W EP 2021076380W WO 2022069370 A1 WO2022069370 A1 WO 2022069370A1
Authority
WO
WIPO (PCT)
Prior art keywords
section
sensor device
surface side
transmission section
contact surface
Prior art date
Application number
PCT/EP2021/076380
Other languages
German (de)
English (en)
Inventor
Uwe Glanz
Georg Hejtmann
Tjalf Pirk
Rainer Feuerfeil
Thomas Wagner
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to CN202180067525.5A priority Critical patent/CN116324192A/zh
Priority to EP21786113.7A priority patent/EP4222387A1/fr
Publication of WO2022069370A1 publication Critical patent/WO2022069370A1/fr

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
    • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
    • F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
    • F16B31/028—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load with a load-indicating washer or washer assembly
    • 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
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
    • F16B43/02—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts with special provisions for engaging surfaces which are not perpendicular to a bolt axis or do not surround the bolt

Definitions

  • the invention relates to a transmission section for a fastener, in particular an anchor or a screw, and a fastener according to the preambles of the independent claims.
  • Fasteners such as anchors and screws
  • anchors are used to fix facade elements to buildings.
  • a washer between, for example, a screw head and an element to be fastened by the screw.
  • sensor device for detecting a variable is integrated that characterizes a condition of the washer or the fastening means.
  • Such washers can be used, for example, to measure a force, for example the preload force of a screw.
  • the problem on which the invention is based is solved by a transmission section and a fastening means having the features of the independent claims.
  • Advantageous developments of the invention are specified in the dependent claims.
  • the sensor device With a suitable shape, the sensor device is evenly loaded regardless of the tilting/canting of the fastening means relative to the counterpart (e.g. due to a fastening hole that is introduced at an angle) and thus delivers a stable and robust signal. This is the case in particular when the sensor device comprises a sensor layer.
  • the compensating section significantly improves the transmission of force from the contact surface to the counterpart and reduces the likelihood of premature failure of the fastener both by sufficient prestressing force during installation and by more even transmission of force during operation.
  • this increases the security of the fastener and saves on maintenance and repair costs.
  • a defined contact area is made available by the compensating section, which can be used for reliable sensor devices.
  • the significance of the size detected by the sensor device is also made independent of the orientation of the contact surface relative to the counterpart.
  • the “packaging” of the sensor device can also be improved by the compensating section provided according to the invention, as a result of which it is protected even more reliably against weather and environmental influences.
  • a fastener transfer portion Such a transmission portion may, for example, be ring-shaped in the manner of a washer, which in the operative position is arranged radially outside a bolt portion and adjacent to a head portion of the fastener.
  • An anchor or a screw is particularly preferred as the fastening means.
  • the transmission section bears against the fastening means, for example a head section of the fastening means, by means of a contact surface and, in the operating position, bears against a counterpart by means of a mating surface, which is fastened to a further element by the fastening means.
  • the transmission section includes a sensor device for detecting a variable that characterizes a state of the transmission section and/or the fastening means.
  • the transmission section is therefore a “smart” transmission section, for example a “smart washer”.
  • the transmission section comprises a compensating section for compensating for an inclined position between the contact surface and the mating surface.
  • the compensating section comprises a section on the contact surface side and a section on the opposite surface side, wherein an angular position of the section on the contact surface side can be changed relative to the section on the opposite surface side and the section on the contact surface side is supported at least indirectly on the section on the opposite surface side.
  • This is particularly easy to implement mechanically.
  • the section on the contact surface side and the section on the opposite surface side can be separate elements, but can also be connected to one another in one piece by a flexible or deformable compensating section, for example.
  • the section on the contact surface side or the counter-surface side comprises a convex spherical surface, which is supported on a complementary concave spherical surface of the counter-surface or contact surface-side section.
  • a ball joint is very stable and allows compensation for an inclined position in any direction.
  • the sensor device be arranged at least partially in the area of the spherical surface.
  • the sensor device can be accommodated in a very protected manner in the area of the spherical surface, and on the other hand, completely different and important or meaningful state variables can be recorded centrally there.
  • the sensor device is arranged at least partly in the area of the contact surface and/or at least partly in the area of the counter surface. With this arrangement, the relative movement of the transmission section between the contact surface and counter surface is not influenced by the sensor device.
  • the sensor device is arranged and set up to at least indirectly detect an inclined position between the contact surface and the counter surface, and/or is arranged and set up to at least indirectly detect a force.
  • the sensor device has a first partial sensor device in the region of the section on the contact surface side and a second partial sensor device in the region of the section on the opposite surface. This allows a particularly simple detection of a force or an angle in particular. For example, the distance between the contact-surface-side section and the counter-surface-side section can be detected, which enables a force to be determined, or the angle between the contact-surface-side section and the counter-surface-side section can be determined.
  • the sensor device detects an electrical resistance, an electrical capacitance, an inductance, an optical transparency and/or a frequency-dependent behavior.
  • the sensor device be integrated in the section on the contact surface side and/or in the section on the opposite surface side of the compensation section. In this case, the sensor device is very well protected from external influences. It is even conceivable that the sensor device is formed by the section on the counter-surface side and/or the section on the contact-surface side itself. In a further development it is proposed that the compensating section is at least partially integrated into a section of the fastening means. This facilitates assembly as well as transport and storage.
  • the sensor device has a communication device for wireless communication with an anchor and/or an external device, in particular a smartphone or a cloud. This considerably simplifies the detection of the state of the transmission section and/or the fastening means and thus the state of the fastening as such.
  • the transmission section is designed in such a way that it can be used for a plurality of fastening means. In this way, for example, groups of two or four fasteners can be compensated overall.
  • Figure 1 shows a section through a fastener in the form of a screw and a transmission portion which is arranged between a head portion of the fastener and a counterpart to which the fastener is attached;
  • FIG. 2 shows a representation similar to FIG. 1 of a modified embodiment
  • FIG. 3 shows a section through an embodiment, similar to FIG. 2, of a fastening means with a transmission section.
  • a fastener in the form of a screw bears the reference numeral 10 overall in FIG.
  • the fastening means could also be a screw with a nut or an anchor, for example a wall anchor.
  • the counterpart 16 can be, for example, a facade part which is attached to a building part 17 made of concrete or stone, for example. The bolt section 14 is thus screwed into the building part 17, for example.
  • the head section 12 comprises an annular surface 18 towards the counterpart 16, and the counterpart 16 comprises a flat bearing surface 20 towards the head section 12.
  • a transmission section 22 is arranged between the head section 12 and the counterpart 16. This is in the form of an annular disk overall and is embodied in two parts, for example, with two sections 24 and 26 .
  • a section pointing with a contact surface 28 toward the head section 12 is referred to as the “contact-surface-side” section 24
  • a section pointing with a counter-surface 30 toward the counterpart 16 is referred to as the “counter-surface-side” section 26 . It can be seen that in the operating position shown in Figure 1, the contact surface 28 of the transmission section 22 lies flat against the annular surface 18 of the head section 12, and that the mating surface 30 of the transmission section 22 rests flat on the bearing surface 20 of the counterpart 16.
  • the section 24 on the contact surface side and the section 26 on the counter-surface side together form a compensating section 32 to compensate for a possible inclination between the contact surface 28 and the counter-surface 30 (however, such an inclination does not exist in the operating position shown in FIG. 1).
  • the contact-surface-side section 24 has a concave spherical surface 34 toward the counter-surface-side section 26, and the counter-surface-side section 26 has a complementary convex spherical surface 36 toward the contact-surface-side section 24.
  • the convex spherical surface 36 lies flat against the concave spherical surface 34, as a result of which a type of ball joint is formed.
  • the two spherical surfaces 34 and 36 thus form slidable curved boundary surfaces which allow angular movement between the counter-surface-side section 26 and the contact-surface-side section 24 without a gap forming between the two sections 24 and 26 .
  • the two sections 24 and 26 each have through openings 38 and 40, the inside width of which is slightly larger than the outside diameter of the bolt section 14.
  • the two through openings 38 and 40 slightly conical or conical.
  • a ductile and thin compensation layer 41 is applied to the mating surface 30 in order to compensate for roughness of the bearing surface 20 on the mating piece 16 .
  • the transmission section 22 comprises a sensor device, designated overall by 42, with which a state of the transmission section 22 and here also of the fastening means 10 can be determined at least indirectly by detecting a variable characterizing the state of the transmission section 22 or of the fastening means 10.
  • the sensor device 42 can be arranged at different points of the transmission section 22 . In the present case, all points are indicated in FIG. 1 and the corresponding sensor devices 42 are denoted by additional indices a-g. It goes without saying, however, that in reality a sensor device 42 can also be present at just one of the designated locations.
  • the sensor device 42 is preferably designed as a sensor layer or as a layer-like and extremely thin sensor element. A prestressing force of the fastening means 10 and/or a tilting or inclined position between the contact surface 28 and the counter surface 30 can preferably be determined by means of the sensor device 42 .
  • the sensor device 42a is arranged on the contact surface 28 towards the head section 12 of the fastening means 10 .
  • the sensor device 42b is arranged on the concave spherical surface 34 and/or the convex spherical surface 36 . This is advantageous due to the comparatively large surface area of the spherical surfaces 34 and 36.
  • the sensor device 42c is arranged on the mating surface 30 toward the counterpart 16.
  • the sensor device 42d is arranged on the inside of the through-opening 40, whereby it is also on the Inside of the through hole 38 could be arranged. In particular, the sensor device 42d is particularly well suited for detecting a tilting or an inclined position between the contact surface 28 and the counter surface 30.
  • the sensor device 42e is integrated in the section 26 on the counter-surface side, and the sensor device 42f is integrated in the section 24 on the contact-surface side. It is also conceivable that the section 24 on the contact surface side is itself designed as a sensor device. The same also applies to section 26 on the counter-surface side.
  • the sensor device 42g is present as a package in several places, for example, and in this respect comprises several partial sensor devices, namely both on the counter-surface 30 and on the contact surface 28 and the spherical surface 34 or 36.
  • the sensor device is arranged separately from the transmission section in another component used for the attachment, for example a washer, a separate sensor plate, or the like.
  • the sensor device 42 can detect an electrical resistance, an electrical capacitance, an inductance, an optical transparency and/or a frequency-dependent behavior.
  • Corresponding sensor devices 42 are basically known from the market.
  • further layers can be provided in order to improve the function and reliability, for example thin, soft layers to fill in roughness, such as the compensation layer 41, as well as layers to improve adhesion or protect against environmental influences.
  • carbon layers eg DLC—diamond-like carbon
  • ceramics eg Al2O3, YSZ, ZTA, ATZ, . . .
  • the following layer materials are fundamentally conceivable for the sensor devices 42: constantan, nichrome V, chromol C, platinum-tungsten, platinum, silicon, diamond-like carbon layers (DLC, diamond-like carbon) also doped with silicon, metals (chromium, titanium, tungsten, ...), nitrogen.
  • the following layer materials are basically conceivable for the sensor devices 42, some of which are also used for the production of capacitors: aluminum oxide (Al2O3), silicon dioxide (SiO2), titanium dioxide (TiO2), zirconium dioxide (ZrO2), silicon nitride (Si3N4), Diamond-like carbon layers (DLC, Diamond Like Carbon) - also doped with silicon, metals (chromium, titanium, tungsten, ...), nitrogen.
  • Al2O3 aluminum oxide
  • SiO2O2 silicon dioxide
  • TiO2 titanium dioxide
  • ZrO2 zirconium dioxide
  • Si3N4 silicon nitride
  • Diamond-like carbon layers DLC, Diamond Like Carbon
  • the same materials are suitable for magnetic decoupling between the component, ie the transmission section 22, and the magnetically active layer as described above with regard to the piezo-capacitive materials.
  • Thin layers consisting of iron-cobalt-hafnium-nitrogen are suitable as a magnetically active layer.
  • the section on the contact surface side and the section on the opposite surface side i.e. the “solid material” so to speak, of the transmission section as a whole can form the sensor device:
  • a simple embodiment uses the section on the contact surface side and the section on the opposite surface side as contact and measures the distance between the two, e.g. via a resistance, capacitance or magnetic field measurement.
  • Further embodiments that are not shown provide that the section on the contact surface side and/or the section on the opposite surface side are made of the suitable materials described. Suitable parameters are read out via suitable taps, preferably contact surfaces, in order to measure the effect of the prestressing force on the solid material.
  • the section 24 on the contact surface side is formed in one piece with the head section 12, that is to say it is integrated into a section of the fastening means 10 in this respect.
  • the sensor device it is also conceivable, but not shown, for the sensor device to have a communication device for wireless communication with an anchor and/or an external device, in particular a smartphone or a cloud.
  • the transmission section is designed in such a way that it can be used for a plurality of fastening means at the same time.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

Partie de transmission (22) qui est destinée à un moyen de fixation (10), en particulier un ancrage ou une vis, et qui peut être disposée sur le moyen de fixation (10) au moyen d'une surface de butée (28) et sur une contre-pièce (16), qui peut être fixée par le moyen de fixation (10), au moyen d'une contre-surface (30) et qui comprend au moins un dispositif de détection (42) destiné à détecter une variable caractérisant un état de la partie de transmission (22) et/ou du moyen de fixation (10). Il est proposé que la partie de transmission (20) comprenne une partie de compensation (32) destinée à compenser une position oblique entre la surface de butée (28) et la contre-surface (30).
PCT/EP2021/076380 2020-10-01 2021-09-24 Partie de transmission pour un moyen de fixation, en particulier un ancrage ou une vis, ainsi qu'un moyen de fixation WO2022069370A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202180067525.5A CN116324192A (zh) 2020-10-01 2021-09-24 用于紧固器件，尤其锚固件或螺钉的传递区段以及紧固器件
EP21786113.7A EP4222387A1 (fr) 2020-10-01 2021-09-24 Partie de transmission pour un moyen de fixation, en particulier un ancrage ou une vis, ainsi qu'un moyen de fixation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020212431.0A DE102020212431A1 (de) 2020-10-01 2020-10-01 Übertragungsabschnitt für ein Befestigungsmittel, insbesondere einen Anker oder eine Schraube, sowie Befestigungsmittel
DE102020212431.0 2020-10-01

Publications (1)

Publication Number Publication Date
WO2022069370A1 true WO2022069370A1 (fr) 2022-04-07

Family

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Application Number Title Priority Date Filing Date
PCT/EP2021/076380 WO2022069370A1 (fr) 2020-10-01 2021-09-24 Partie de transmission pour un moyen de fixation, en particulier un ancrage ou une vis, ainsi qu'un moyen de fixation

Country Status (4)

Country Link
EP (1) EP4222387A1 (fr)
CN (1) CN116324192A (fr)
DE (1) DE102020212431A1 (fr)
WO (1) WO2022069370A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565513A1 (fr) * 1992-04-07 1993-10-13 Erdhart Dipl.Ing. Behensky Dispositif de mesure de force
EP3483577A1 (fr) * 2017-11-13 2019-05-15 G-Coder Systems AB Système et procédé de détermination de tension d'un objet non vivant
WO2019154827A1 (fr) * 2018-02-06 2019-08-15 Zensor Unité de rondelle et système de détection de contrainte pour une articulation assemblée

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7289033B2 (en) 2005-06-30 2007-10-30 General Electric Co. Wireless sensing washers for imaging device attachment
KR102576963B1 (ko) 2017-10-19 2023-09-11 티에치케이 가부시끼가이샤 예압 검지 가능한 나사 장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565513A1 (fr) * 1992-04-07 1993-10-13 Erdhart Dipl.Ing. Behensky Dispositif de mesure de force
EP3483577A1 (fr) * 2017-11-13 2019-05-15 G-Coder Systems AB Système et procédé de détermination de tension d'un objet non vivant
WO2019154827A1 (fr) * 2018-02-06 2019-08-15 Zensor Unité de rondelle et système de détection de contrainte pour une articulation assemblée

Also Published As

Publication number Publication date
DE102020212431A1 (de) 2022-04-07
EP4222387A1 (fr) 2023-08-09
CN116324192A (zh) 2023-06-23

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