EP4315512A1 - Boulon de fixation - Google Patents

Boulon de fixation

Info

Publication number
EP4315512A1
EP4315512A1 EP22714802.0A EP22714802A EP4315512A1 EP 4315512 A1 EP4315512 A1 EP 4315512A1 EP 22714802 A EP22714802 A EP 22714802A EP 4315512 A1 EP4315512 A1 EP 4315512A1
Authority
EP
European Patent Office
Prior art keywords
fixing
fixing bolt
structural part
segments
bolt
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
Application number
EP22714802.0A
Other languages
German (de)
English (en)
Inventor
Nicolas Becker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brose Sitech GmbH
Original Assignee
Brose Sitech 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 Brose Sitech GmbH filed Critical Brose Sitech GmbH
Publication of EP4315512A1 publication Critical patent/EP4315512A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/05—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations having different types of direct connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/26—Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/304—Clamped connections, spring connections utilising a screw or nut clamping member having means for improving contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/308—Conductive members located parallel to axis of screw
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/34—Conductive members located under head of screw
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/54—Bayonet or keyhole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/12—End pieces terminating in an eye, hook, or fork

Definitions

  • the invention relates to the connection of a cable, in particular a ground cable, to a metallic structural part, in particular a seat pan, which has an electrically conductive connection part at the end.
  • Document DE 102017011 718 A1 describes a clamp for at least temporarily fixing a cable lug resting on a polygonal head of a grounding bolt by means of a first surface of an eyelet section, the clamp being an essentially U-shaped element when viewed axially, corresponding to the longitudinal axis of the grounding bolt , which is designed to partially border the circumference of the polygonal head and the eyelet section lying thereon and to engage in a form-fitting manner in the area of the border at least in sections on the polygonal head and on the eyelet section of the cable lug.
  • the shank of the ground bolt extends through an opening in the eyelet section.
  • the polygonal head is preferably electrically conductively connected to a body part via a spacer.
  • the publication DE 102008010 352 A1 discloses a holding arrangement for at least two electrical connection members, such as cable lugs, each of which has an electrical connection section and a line section, with a base part and a cover part which can be connected to the base part to form a holding device, the connection sections are inserted axially one above the other and fixed axially in the holding device and the line sections extend in the radial direction opposite radial openings of the holding device, the radial openings being designed in such a way that the connection sections cannot be pulled out of the radial openings, with the base part and/or the cover part furthermore, an axial opening is formed, via which at least one connection section of the inserted connection sections can be electrically contacted, the holding device having centering means for centering the connection sections in the holding device has and wherein the centering means act on the outer circumference of the connection sections.
  • the document EP 2 009744 A1 relates to a fastening system for fastening a cable lug in a motor vehicle, which is fixed to a complementary vehicle Element fastenable fastener and a disc with a central opening comprises.
  • the washer and the fastener have a common axis of symmetry and the washer is pivotally connected to the fastener about this axis of symmetry.
  • the disk is provided with locking elements, by means of which it can be locked in a rotationally fixed manner with a cable lug.
  • the starting point of the present invention is (see Figure 1A) the connection of a cable, in particular a ground cable, to a metallic structural part, in particular a seat pan, which has an electrically conductive connection part at the end, see Figures 1B and 1C, in particular a cable lug or a cable eyelet.
  • FIGS 1A, 1B and 1C show the prior art. Show it:
  • FIG. 1A shows an underside of a structural part of a vehicle seat when assembled
  • FIG. 1B shows an enlarged representation of a conventional ground contact on the underside of the structural part, taken from FIG. 1A, in the assembled state;
  • Figure 1C is a perspective view of the conventional ground contact on the
  • a ground bolt 1 with an external thread is welded to the structural part 100, in particular the seat pan, and a nut 2, in particular a hexagonal nut, is screwed to the ground bolt 1 by means of the nut 2 after the connection part 200 (cable holder) has been placed on the ground bolt 1.
  • the known procedure is explained even more in principle by the fact that, in order to establish a stable ground contact, a ground bolt 1 or a nut 2 is welded onto a structural part, in particular a vehicle body, so that the ground bolt 1 or the nut 2 is electrically conductive with the sheet metal of the structural part 100 connected is.
  • connection part 200 like the cable lug, is then electrically connected to the ground bolt 1 or to the nut 2 by screwing a nut 2 onto the ground bolt 1 or by screwing a ground bolt 1 into the nut 1.
  • the structural part 100 is a seat pan, consisting of a thin sheet metal, of a seat part S of a vehicle seat F, which is shown from its underside U in FIG.
  • the nut 2 covering the external thread of the grounding bolt 1 (which is used to derive the grounding current from the structural part 100 via the grounding cable to the body (not shown)) is already pre-assembled before final assembly, since the structural part 100 is coated, with the coating process, in particular the cathodic Dip painting is provided. So that the ground bolt 1, which was previously welded to the structural part 100, is not also coated, after the joint coating of the ground bolt 1 and the nut 2, the nut 2 covering the external thread must be removed again, disadvantageously, for the final assembly of the cable 300. In addition, the ground bolt 1 is disadvantageously always arranged in this procedure, although it is not required at all in some vehicle seats in which no grounding current has to be discharged. This means that an individual arrangement of a ground bolt to form a ground contact only when required is not possible with this known solution.
  • the object of the invention is therefore an improved assembly of a bolt, in particular a ground bolt for arranging a cable, in particular a To create a ground cable so that, if necessary, a structural part-side establishment of an electrically conductive contact, in particular a ground contact, can take place in a simple manner.
  • the starting point of the invention is a fixing bolt which has a fixing bolt head and a fixing bolt shank.
  • the fixing bolt head and/or the fixing bolt shaft has two fixing elements which are essentially arranged in two planes spaced apart from one another, between which a structural part plane is formed, in which a structural part lies in an assembled state which the fixing bolt is fixed.
  • the fixing bolt advantageously has its own fixing elements, so that a new type of fastening of the fixing bolt is possible, which is explained in more detail in the description.
  • the fixing bolt is in one piece, with the two fixing elements being arranged on the fixing bolt head and/or the fixing bolt shaft.
  • a one-piece configuration advantageously simplifies the assembly of the fixing bolt on the structural part and all the required parts are advantageously arranged in a captive manner.
  • the fixing bolt is in two parts, with a second fixing element of the two fixing elements being arranged separately and reversibly in a form-fitting manner on the fixing bolt head and/or the fixing bolt shaft.
  • the two fixing elements are wing-like fixing segments and wing-like fixing counter-segments that extend radially from the fixing bolt head and/or the fixing bolt shaft relative to a longitudinal axis of the fixing bolt.
  • the two fixing elements also extend radially from the fixing bolt head and/or the fixing bolt shaft in relation to the longitudinal axis of the fixing bolt are wing-like fixing segments, in contrast to the first one-piece embodiment variant, the second fixing element is a ring-like fixing counter-segment.
  • the wing-like fixing segments in particular advantageously allow the first fixing element to be pushed through the structural part and fixed to it, while the wing-like fixing counter-segments advantageously form counter bearings and thus advantageously form a kind of sandwich, since the structural part in the Assembled state is arranged in both variants of the fixing bolt between the fixing elements (in the first plane) or the (lying in the second plane) fixing counter-segments, as explained in more detail in the description.
  • a stop and at least one cutting element are arranged on the surface of at least one of the wing-like fixing segments directed towards the plane of the structural part.
  • a stop is arranged on one of the wing-like fixing segments and at least one cutting element is arranged on the other of the wing-like fixing segments on the surfaces of two wing-like fixing segments directed toward the plane of the structural part.
  • both at least one stop and at least one cutting element are arranged on the surfaces of the at least two wing-like counter-fixing segments directed towards the plane of the structural part.
  • At least one locking element is advantageously arranged on the surfaces of the wing-like counter-fixing segment or ring-like counter-fixing segment facing the plane of the structural part to secure the fixing bolt in its initial position, as explained in more detail in the description.
  • the invention thus relates to a fixing arrangement for fixing a bolt, in particular a ground bolt, which is characterized in that the fixing arrangement comprises a receiving opening in a structural part and a fixing bolt according to at least one of the aforementioned embodiment variants and the associated preferred features, which has two fixing elements in im Essentially in two planes spaced apart from one another, by means of which the fixing bolt can be reversibly fixed in the receiving opening of the structural part lying in the plane of the structural part.
  • a method for fixing the fixing bolt in the receiving opening of the structural part is also the subject of the invention, the fixing bolt having the two fixing elements in essentially two planes spaced apart from one another, by means of which the fixing bolt can be reversibly fixed in the receiving opening of the structural part lying in the plane of the structural part is.
  • the method in particular the assembly method, according to the invention comprises the following essential steps, which are explained and subdivided in more detail in the description: a) Pre-positioning and pushing through the wing-like fixing segments of the fixing bolt arranged in the first plane from one side of the structural part into the receiving opening to the counter-fixing segments lying in the second plane are in contact with the structural part and the structural part is arranged in the structural part plane between the two planes. b) turning the fixing bolt from the same side of the structural part,
  • this makes it possible for a fixing bolt unit consisting of fixing bolts, cables, in particular a ground cable and the nut/washer connection to be reversibly mounted on the fixing bolt according to steps a) and b), as explained in more detail in the description.
  • Figure 2A the fixing bolt (without cable) according to a first one-piece
  • FIG. 2B shows the fixing bolt according to FIG. 2A in a perspective representation obliquely from below;
  • FIG. 3A shows the fixing bolt (without cable) according to a second two-part embodiment variant in a perspective representation obliquely from above;
  • FIG. 3B shows the fixing bolt according to FIG. 3A in a perspective representation obliquely from below.
  • FIG. 4A shows a representation of a receiving opening according to the invention in a structural part, seen from the underside of the structural part;
  • FIG. 4B shows the fixing bolt according to the invention (according to the first one-piece embodiment variant) with an already pre-assembled cable (in a perspective representation obliquely from below) in a first assembly position, which is pre-positioned on the underside of the structural part in the first assembly position;
  • FIG. 4C the fixing bolt according to the invention according to FIG. 4B with the already pre-assembled cable (in a perspective representation obliquely from below) in a second assembly position, which, starting from the underside of the structural part, is inserted into the receiving opening according to FIG. 4A and is pre-positioned in the structural part in the second assembly position;
  • FIG. 4D shows the fixing bolt according to the invention according to FIG. 4B with the already preassembled cable (in a perspective representation obliquely from above) in a final assembly position in the structural part.
  • FIG. 4A shows a representation of a receiving opening 101 according to the invention in a structural part 100 seen from the underside U of the structural part 100 .
  • the structural part 100 correspondingly has an upper side O, which in the exemplary embodiment is directed towards an occupant sitting on the padded seat pan of the seat part S of the vehicle seat F.
  • the receiving opening 101 of the structural part 100 has a specific inner contour which corresponds to an outer contour of a first fixing element 11 of a fixing bolt head of a fixing bolt 10, 10', with FIGS Figures 3A and 3B show a second variant embodiment of the fixing bolt, referenced 10'.
  • the first fixing element 11 of the respective fixing bolt head of the fixing bolt 10, 10' does not differ in the two variants, so that the following description applies to both variants.
  • the first fixing element 11 has a cylindrical outer contour as a base section 11.1, from which wing-like fixing segments 11.2 protrude orthogonally to the longitudinal axis Z.
  • the two second fixing elements 12, 12' form at least one fixing counter-segment 12.2,
  • first fixing element 11 wherein the counter-fixing segment(s) 12.2, 12'.2 is/are designed differently depending on the embodiment variant, which will be discussed later.
  • first fixing element 11 with its fixing segments 11.1 and 11.2 is arranged in a first x/y plane E1.
  • the respective second fixing element 12, 12' is also arranged with its fixing counter-segments 12.2 or with its fixing counter-segment 12'.2 in an x/y plane which lies parallel to the first x/y plane E1 and subsequently as the second x/y -level is called E2.
  • the intervening x/y plane which is referred to as the third x/y structural part plane E3, lies the metal sheet of the structural part 100 in the assembled state, on which the respective fixing bolt 10, 10' is located in the sense of a fixation of the respective fixing bolt 10, 10' on the metal sheet.
  • the fixing segments 11.1 and 11.2 of the first fixing element 11 are braced with their undersides on the upper side of the sheet and the fixing counter-segments 12.2 are braced with their upper sides and the fixing counter-segment 12'.2 are braced with its upper side 2 on the underside of the sheet, so that finally the respective Fixing bolts 10, 10 '(first and second embodiment variant) is fixed to the sheet metal.
  • the underside of the first fixing element 11 arranged in the first x/y plane E1 and the top of the respective second fixing element 12, 12' arranged in the second x/y plane E2 are arranged at a predetermined distance from one another depends on the thickness of the structural part 100, and consequently on the sheet metal thickness of the structural part 100, which in the exemplary embodiment is the sheet metal thickness of the seat pan.
  • the second fixing element 12 has, as a base section 12.1, a cylindrical outer contour from which two further orthogonal wing-like counter-fixing segments 12.2 protrude in relation to the longitudinal axis Z (similar to the first wing-like fixing segments 11.2).
  • the fixing counter-segments 12.2 of the second fixing element 12 form a flat surface on their upper sides, which are directed towards the first fixing element 11, with the exception of the at least one locking element 12.3.
  • the undersides of Fixing counter-segments 12-2 of the second fixing element 12 also form a flat surface.
  • first fixing segments 11.2 and the second fixing counter-segments 12.2 are arranged on the cylindrical circumference of the base sections 11.1 and 12.1 in such a way that the fixing segments 11.2 and fixing counter-segments 12.2 are offset from one another.
  • the lateral outer contour of the fixing segments 11.2 of the first fixing element 11, which is oriented towards the receiving opening 101, corresponds to the inner contour of the receiving opening 101 shown in Figure 4A.
  • the lateral outer contour of the fixing counter-segments 12.2 of the second fixing element 12 does not correspond to the inner contour of the receiving opening 101 shown in Figure 4A.
  • At least one of the first fixing segments 11.2 has a stop 11.3, which protrudes from the at least one fixing segment 11.2 in the direction of the longitudinal axis Z of the fixing bolt in the direction of the longitudinal extension of a fixing bolt shank 13.
  • the at least one stop 11.3 has a certain length, which is dimensioned such that the stop 11.3 only protrudes into the third x/y structural part plane E3 in the assembled state.
  • the at least one stop 11.3 is arranged on the underside of one or both fixing segments 11.2.
  • the at least one stop 11.3 is particularly preferably arranged on the edge of the respective fixing segment 11.2, with the at least one stop 11.3 being arranged on that edge which, seen counterclockwise according to Figure 2A, is furthest from the next fixing segment 12.1 in the second x/y -Plane E2 of the second fixing element 12 is removed.
  • At least one of the first fixing segments 11.2 also has a cutting element 11.4, which projects in the direction of the longitudinal extent of a fixing bolt shaft 13 from the at least one fixing segment 11.2 in the direction of the longitudinal axis Z of the fixing bolt.
  • the at least one cutting element 11.4 has a certain length, which is dimensioned such that the cutting element 11.4 protrudes only slightly into the third x/y structural part plane E3 in the assembled state. As is clear from FIGS. 2A, 2B, the at least one cutting element 11.4 is arranged on the underside of one or both fixing segments 11.2.
  • cutting element 11.4 does not cut or only slightly cuts into the sheet metal of structural part 100, but cuts or scratches a coating of the sheet metal, so that an electrical There is contact between the fixing bolt 10 and the structural part 100 .
  • the at least one cutting element 11.4 is preferably designed as a type of toothing, with the teeth running in the circumferential direction in relation to the longitudinal axis Z of the fixing bolt, with it being preferably provided that the tooth height is designed to increase in the circumferential direction, with (compare Figure 2) the tooth height increasing a side opposite the stop 11.3 on the underside of the fixing segment 11.2 has only a small amount, which increases in the direction of the stop 11.3.
  • This solution according to the invention will be discussed in more detail in connection with the assembly of the fixing bolt 10 .
  • both a stop 11.3 and the cutting element 11.4 can be arranged in combination on one fixing segment 11.2 or both fixing segments 11.2 of the first fixing element 11.
  • the stop 11.3 is arranged on one fixing segment 11.2 and the cutting element 11.4 is arranged on the other fixing segment 11.2. It is essential that at least one stop 11.3 and at least one cutting element 11.4 are arranged in the manner explained.
  • the second fixing counter-segments 12.2 are offset relative to the first fixing segments 11.2 on the circumferential side.
  • a locking element 12.3 is arranged on the upper side (compare FIG. 2A) of at least one of the opposite fixing segments 12.2.
  • the predefinable maximum distance of the locking element 12.3 is at most the sheet metal thickness or a partial amount of the sheet metal thickness of the structural part 100.
  • the locking element 12.3 is designed as a ramp, so that the predetermined distance is only reached at the end of the ramp. With others Words, the locking element 12.3 forms a step at the end, which serves to lock the fixing bolt 10 (position securing) in its end position.
  • the at least one locking element 12.3 is arranged in exactly one position on the upper side of the counter-fixing segment 12.2 of the second fixing element 12, so that the step in the end position of the fixing bolt 10 is exactly on a front-side section of the sheet metal within the front-side 101.3 of the receiving opening (compare Figure 4A ) of the structural part 100 engages in a locking manner. It goes without saying that a locking element 12.3 can be arranged in the manner described on at least one or both fixing counter-segments 12.2.
  • the fixing bolt 10 is designed in one piece according to the invention. It is preferably a cold extruded part, that is to say the fixing bolt 10 is produced by extrusion, with such pressed parts being characterized by extremely high strength and special surface quality.
  • the fixing bolt shank 13 has the external thread, not shown in detail, onto which a nut 2 can be screwed.
  • the first fixing element 11 according to the first variant does not differ from the first fixing element 11 according to the second variant.
  • the second fixing element 12' of the second embodiment differs from the second fixing element 12 of the first embodiment, as becomes clear from FIGS. 3A and 3B.
  • the second fixing element 12 of the second embodiment variant is designed as a fixing counter-segment 12'.2 in the manner of a counter-bearing ring, with provision also being made for the fixing counter-segment 12'.2 to represent a separate part.
  • the fixing bolt 10 is formed in two parts according to the invention.
  • the part of the fixing bolt 10 already described in connection with the first embodiment variant and the counter bearing ring are preferably each produced separately, it being possible for both parts to be produced as cold extruded parts by extrusion with the advantages mentioned.
  • a two-part configuration of the fixing bolt 10 avoids the undercuts formed in the first embodiment variant of the fixing bolt 10, which lead to a relatively complex manufacturing process.
  • the position of the counter-fixing segment 12'.2, i.e. the counter-bearing ring, in relation to the fixing segments 11.2 of the first fixing element 11 is not readily fixed, so that, according to the invention, the base section 12M of the counter-bearing ring on the fixing bolt shaft 13 has a specific outer contour has, which (compare Figure 3B) corresponds to the inner contour of the counter-bearing ring.
  • Figure 3B corresponds to the inner contour of the counter-bearing ring.
  • the contour of the base section 12M is designed in such a way that the counter bearing ring assumes a specific position in which it is ensured that the locking element 12.3 (compare Figure 3A), which is designed as a ramp analogously to the first embodiment variant, in accordance with the explanations for the first embodiment variant serves to lock the fixing bolt 10' in its end position.
  • the fixing counter-segment 12'.2 of the second fixing element 12 forms a flat surface on its upper side (which faces the first fixing element 11), with the exception of the locking element 12.3.
  • the underside of the opposite fixing segment 12'.2 of the second fixing element 12 also forms a flat surface.
  • the base section 11.1 of the first fixing element 11 also forms the base section 12.1 of the second fixing elements 12, 12', which differ according to the embodiment variants of the first fixing bolt 10 (first embodiment variant) and the second fixing bolt 10' (second embodiment variant) explained below.
  • the outer contours of the fixing segments 11.2 of the first fixing element 11 and of the base section 11.1, which are oriented toward the receiving opening 101, correspond to the inner contour that is shown in Figure 4A shown receiving opening 101, which analogous to the outer contour of the base section 11.1 has a receiving opening section 101.1 with a circular receiving inner contour analogous to the outer contour of the base section 11.1. Furthermore, the receiving opening 101 has receiving opening sections 101.2 with an inner receiving contour which corresponds to the outer contours of the fixing segments 11-2 of the first fixing element 11 oriented toward the receiving opening 101.
  • the base section 11.1 and the fixing segments 11.2 of the first fixing element 11 form a flat surface on their upper side.
  • the undersides of the fixing segments 11-2 of the first fixing element 11, which are directed towards the second fixing element 12, also form flat surfaces with the exception of the at least one cutting element 11.4 and the at least one stop 11.3.
  • the fixing bolt 10 in the one-piece embodiment variant with an already pre-assembled cable 300 is shown in a perspective view at an angle from below in a first assembly position, the fixing bolt 10 being pre-positioned on the underside U of the structural part 100 in the first assembly position I.
  • the fixing bolt 10 and the cable 300 are already pre-assembled on the fixing bolt shaft 13 with a nut/washer connection 2, 2A. It is provided that the connecting part 200 of the cable 300 is already firmly tightened on the external thread of the fixing bolt shank 13 .
  • the preassembled so-called fixing bolt unit shown can thus be grasped by a worker and inserted into the receiving opening 101 according to the arrow P1, with insertion due to the contour specification only being possible in the position according to FIG. 4B or at an angle of 180° around the longitudinal axis Z of the fixing bolt is. If the outer contours of the fixing counter-segments 11.2 and the associated inner contours of the receiving opening sections 101.2 are designed differently in the structural part, it can even be ensured that only a single insertion position is possible.
  • the locking element 12.3 arranged on top of the counter-fixing segments 12.2 is pressed (not visible in FIG. 4C) onto the underside of the sheet metal of the structural part 100, which Locking element 12.3 deviates by slight elastic deformation in this area.
  • Figure 4C shows the fixing bolt unit according to the invention with the already pre-assembled cable 300 in a perspective view at an angle from below in a second assembly position II, which, starting from the underside U of the structural part 100, is inserted by the worker into the receiving opening 101 and in the second Mounting position II is pre-positioned in the structural part.
  • the fixing bolt unit rotates according to arrow P2 about the fixing bolt axis Z, during which all parts of the fixing bolt unit also rotate.
  • the worker can, for example, grasp nut 2 with an open-end wrench and rotate the fixing bolt unit around its longitudinal axis, whereby the worker exerts a force in the z direction and a rotational force around the longitudinal axis Z of the fixing bolt until the stop (cf 4D) strikes an end section of the sheet metal within the end face 101.3 of the receiving opening 101, while at the same time the locking element (cf. FIG. 4D) latches with its step on another end section of the sheet metal at the end face 101.3 within the receiving opening 101.
  • the wing-like fixing segments 11.2 of the first fixing element 11 in the first x/y plane E1 engage behind the metal sheet of the structural part after the rotational movement P2 about the longitudinal axis Z of the fixing bolt in the area of the receiving opening 101, so that the metal sheet in the third x/y structural part Level E3 between the x / y planes E1 and E2 of the two fixing elements 11, 12 comes.
  • FIG. 4D shows the fixing bolt unit according to the invention with the already preassembled cable 300 in a perspective representation obliquely from above in a final assembly position III in the structural part 100 in which the first fixing element 11 lies outside the receiving opening.
  • the sheet metal of structural part 100 lies between the first fixing element 11 and the second fixing element 12, the fixing counter-segments 12.2 of which in the second x/y plane E2 support the sheet metal in the third x/y structural part plane E3 from below, so that the at least a cutting element 11.4 (without the sheet metal of structural part 100 being able to deviate) can score the coating of the sheet metal of structural part 100, with the tooth height of the at least one cutting element 11.4 increasing in the direction of rotation ensuring that the surface coating of the sheet metal is torn open to a continuously deeper extent.
  • the fixing bolt 10' can also be preassembled to form a fixing bolt unit, so that according to the above description there is no difference in the actual final assembly of the fixing bolt 10' or the fixing bolt unit with the fixing bolt 10.
  • the counter bearing ring is pre-fitted as the second fixing element 12' and the nut/washer connection 2, 2A is pre-assembled by screwing on according to the description.
  • the assembly for both variants of the fixing bolts 10, 10' can also be carried out in such a way that the fixing bolt 10, 10' is set and fixed in the final assembly position III and only then the connecting part 200 of the cable 300 and the nut /washer connection 2, 2A is put on and the cable 300 is secured on the fixing bolt shaft 13.
  • the nut 2 is missing, which may be acted upon by a tool in order to turn the fixing bolt 10, 10' into the final assembly position III.
  • the dismantling of the fixing bolts 10, 10' or the fixing bolt units is also possible easily (in the case of fixing bolt units) by loosening the nut 2 and releasing the locking element 11.3 by pressing on the locking element 11.3, this step being carried out from the top O of the structural part 100 can be carried out by pressing and turning against the direction of rotation P2.
  • the invention thus enables reversible subsequent assembly of a ground bolt on a painted structural part 100 which is only accessible from one side during assembly.
  • Within the final assembly there is a cost reduction since only the fixing bolt 10, 10' or the fixing bolt units have to be assembled, with the assembly also being variable only if they are also required in the complete seat.
  • the fixing bolt 10, 10' can be mounted reversibly in a simple manner, whereby in particular the simultaneous cutting of the coating by means of the at least one cutting element 11.4 and the resulting contacting of the cutting element 11.4 of the metal structure and thus, in a preferred embodiment, the derivation of a mass flow in the desired manner is ensured .

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  • Connection Of Plates (AREA)

Abstract

L'invention concerne un boulon de fixation (10, 10') qui présente une tête de boulon de fixation et une tige de boulon de fixation (13). Selon l'invention, la tête de boulon de fixation et/ou la tige de boulon de fixation (13) comprennent/s deux éléments de fixation (11; 12, 12') qui sont disposés sensiblement dans deux plans (E1, E2) qui sont espacés l'un de l'autre et entre lesquels un plan de partie structurale (E3) est formé dans lequel une partie structurale (100) est située à l'état assemblé, le boulon de fixation (10, 10') étant fixé à ladite partie structurale (100).
EP22714802.0A 2021-03-31 2022-03-14 Boulon de fixation Pending EP4315512A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021108223.4A DE102021108223A1 (de) 2021-03-31 2021-03-31 Fixierbolzen
PCT/EP2022/056530 WO2022207295A1 (fr) 2021-03-31 2022-03-14 Boulon de fixation

Publications (1)

Publication Number Publication Date
EP4315512A1 true EP4315512A1 (fr) 2024-02-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP22714802.0A Pending EP4315512A1 (fr) 2021-03-31 2022-03-14 Boulon de fixation

Country Status (5)

Country Link
US (1) US20240186729A1 (fr)
EP (1) EP4315512A1 (fr)
CN (1) CN117280545A (fr)
DE (1) DE102021108223A1 (fr)
WO (1) WO2022207295A1 (fr)

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Publication number Priority date Publication date Assignee Title
US3922050A (en) * 1974-03-21 1975-11-25 Boeing Co Blind, shank expanding electrical terminal structure
JPS55146677U (fr) * 1979-04-07 1980-10-21
US5013259A (en) * 1990-02-26 1991-05-07 Kalas Manufacturing, Inc. Remote auxiliary terminal assembly
JPH09147934A (ja) * 1995-11-22 1997-06-06 Sumitomo Wiring Syst Ltd アース端子の取付け構造
DE29603747U1 (de) * 1996-02-29 1996-05-02 Siemens Nixdorf Informationssysteme AG, 33106 Paderborn Vorrichtung zur Masseverbindung von Flachbaugruppen an einer Gehäusewandung
US7056161B2 (en) * 2001-02-20 2006-06-06 Newfrey Llc Grounding stud
EP2009744A1 (fr) 2007-06-28 2008-12-31 Delphi Technologies, Inc. Système de fixation pour fixer une cosse de câble
DE102008010352A1 (de) 2008-02-13 2009-08-20 Newfrey Llc, Newark Halteanordnung für Kabelschuhe
EP2450582A4 (fr) * 2009-06-29 2014-01-08 Nifco Inc Clip et dispositif à clip
KR101084584B1 (ko) * 2009-10-22 2011-11-17 주식회사 유라코퍼레이션 어스 터미널 볼트 장치
CN202091326U (zh) * 2011-06-16 2011-12-28 冠捷显示科技（厦门）有限公司 新型弹性支撑钉
JP2014175136A (ja) 2013-03-08 2014-09-22 Sumitomo Wiring Syst Ltd アース端子の取付構造
JP6329754B2 (ja) 2013-11-22 2018-05-23 矢崎総業株式会社 締結部材付き部品とその取付方法
DE202017004671U1 (de) 2017-09-07 2018-12-10 Dieter Ramsauer Erdungssenkschraube mit Segmentschneide
DE102017011718A1 (de) 2017-12-18 2018-06-28 Daimler Ag Klemme zur Fixierung eines Kabelschuhs auf einem Massebolzen
CN208299058U (zh) 2018-06-27 2018-12-28 乐清市普银真空元器件有限公司 一种真空元器件中的动导电杆

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CN117280545A (zh) 2023-12-22
WO2022207295A1 (fr) 2022-10-06
DE102021108223A1 (de) 2022-10-06
US20240186729A1 (en) 2024-06-06

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