EP3714173A1 - Dispositif de fixation inamovible - Google Patents

Dispositif de fixation inamovible

Info

Publication number
EP3714173A1
EP3714173A1 EP19700327.0A EP19700327A EP3714173A1 EP 3714173 A1 EP3714173 A1 EP 3714173A1 EP 19700327 A EP19700327 A EP 19700327A EP 3714173 A1 EP3714173 A1 EP 3714173A1
Authority
EP
European Patent Office
Prior art keywords
pin
lower ring
fastening device
springs
latching
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
EP19700327.0A
Other languages
German (de)
English (en)
Inventor
Fabian Nieberding
Lothar Stach
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP3714173A1 publication Critical patent/EP3714173A1/fr
Pending legal-status Critical Current

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
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/06—Releasable fastening devices with snap-action
    • F16B21/07—Releasable fastening devices with snap-action in which the socket has a resilient part
    • F16B21/073—Releasable fastening devices with snap-action in which the socket has a resilient part the socket having a resilient part on its inside
    • 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
    • F16B43/009—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts with a wedging effect in order to adjust the height of the washer
    • 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
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/14—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using wedges
    • 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
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
    • F16B21/18—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details
    • F16B21/186—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details external, i.e. with contracting action
    • 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
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/08—Quickly-detachable or mountable nuts, e.g. consisting of two or more parts; Nuts movable along the bolt after tilting the nut
    • F16B37/0807—Nuts engaged from the end of the bolt, e.g. axially slidable nuts
    • F16B37/0842—Nuts engaged from the end of the bolt, e.g. axially slidable nuts fastened to the threaded bolt with snap-on-action, e.g. push-on nuts for stud bolts
    • 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
    • F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
    • F16B5/0607—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other
    • F16B5/0621—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship
    • F16B5/0642—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship the plates being arranged one on top of the other and in full close contact with each other

Definitions

  • the present invention relates to a non-detachable fastening device, in particular a latching connection, for connecting a plurality of material parts.
  • the fastening device comprises a detent pin and a retaining element, each of which has a plurality of detents, which can be brought into engagement with one another by telescoping detent pin and retaining element and by at least partial reversible deformation or bending of the detent pin and / or the retaining element in the region of the detents are.
  • the latching connection resulting thereby makes it possible to push the locking pin and the retaining element further into one another and blocks them from being pulled apart, whereby the material parts are clamped by passing a part of the locking pin through the material parts between the locking pin and the retaining element.
  • the fastening device allows an uncomplicated and tool-free permanent connection of material parts.
  • only the latching pin is pushed through a corresponding opening in the material parts to be joined and the holding element is pushed or pushed from the other side to the end of the latching pin protruding from the opening.
  • Both the locking pin and the retaining element have a plurality of locking lugs in such a way that can be pushed in the direction of the material parts by attaching the retaining element on the locking pin, the retaining element. A movement taking place in this direction is made possible by a reversible bending of at least part of the latching pin and / or the retaining element in the region of the latching lugs.
  • interlocking latching lugs are formed such that the previously described oppositely directed movement of locking pin and retaining element is possible, an opposite movement or pulling apart of locking pin and retaining element, however, is blocked.
  • the holding element is pushed so long in the direction of the material parts on or against the locking pin, until they are firmly clamped between locking pin and retaining element.
  • the detent pin comprises a pin on which the detents are arranged and which at one end has a head, wherein the outer diameter of the head is greater than the outer diameter of the pin.
  • the latching pin is thus configured similarly to a screw, wherein instead of the screw thread, a plurality of latching lugs are arranged on the pin for forming a latching connection with the retaining element. The head is in the connected state on one of the material parts and jammed with the holding element.
  • the fastening device further comprises a lower ring with a central opening which is arranged in the connected state between the holding element or the head of the detent pin and the material parts and through which the pin of the detent pin can be guided is, wherein the lower ring on the upper side facing away from the material parts has at least two grooves and at least two recesses, wherein the recesses are formed deeper than the grooves and wherein the grooves are alternately arranged in the circumferential direction of the lower ring between the recesses.
  • the underside of the lower ring thus basically rests on one of the material parts in the connected state, while the upper side of the lower ring contacts the underside of the head of the detent pin or the underside of the retaining element.
  • a cast or milled mounting block may have already integrated the element Unterlegring and yet the connection can be connected to a base carrier without tools and still undetachably and held tightly clamped.
  • the depressions each have angled portions along an angular region of the lower ring, which in the case of plan view run either in the clockwise or counterclockwise direction from the bottom of the recesses to the upper side of the lower ring. The bevels thus extend from the bottoms of the depressions in the same mathematical direction of rotation towards the surface of the lower ring.
  • the bottoms are limited in the direction of the inclined opposite direction of rotation of a steep, ie perpendicular to the surface of the lower ring extending edge.
  • the edges of the grooves are steep, ie formed at right angles to the surface of the lower ring.
  • the grooves and recesses are advantageously not only open to the surface of the lower ring, but also towards the central opening.
  • the underside of the head of the latching pin or of the holding element, which is connected to the material parts in the connected position has at least two springs, which can be introduced into the grooves or recesses of the lower ring, wherein in the connected state can be brought by rotation of the detent pin or retaining element relative to the lower ring of the bottoms of the wells along the slopes to the top and further into the grooves.
  • the term "spring” is used in this context in the sense of a tongue and groove connection. The springs, which are located either on the head of the detent pin or on the retaining element, so fit completely into the grooves and into the depressions.
  • the springs are preferably initially in the basic position within the recesses, in particular in contact with the bottoms of the recesses.
  • the carrier element of the springs ie latching pin head or holding element
  • they are displaced from the basic position along the slopes to the surface of the lower ring.
  • the springs are finally brought into the cocking position within the grooves, with the springs engaging in the grooves. Since the grooves are designed less deep than the wells, the springs and thus the support element are in the clamping position so at a greater distance to the connected material parts as in the normal position. As a result, a distortion of the material parts is achieved, which substantially increases the strength of the non-detachable connection.
  • Such bracing by means of the lower ring is particularly advantageous if a low tolerance or high strength is required in the connection of the material parts. Without the washer ring the tolerance of the non-detachable locking connection is determined by the distance of the spaced adjacent ratchet teeth. While a connection without a lower ring may be sufficient for connections without special tolerance requirements, the use of the lower ring according to the invention makes it possible to preload or stretch the connected material parts and thereby exclude tolerances in the connection.
  • the holding element has at least two radially outwardly reversibly bendable arms on which the latching lugs are arranged.
  • the holding element has a central opening for receiving the pin of the latching pin, wherein the springs are arranged on the underside of the head of the latching pin.
  • both the pin of the detent pin and the arms of the retaining element are formed as at least two radially outwardly reversibly bendable and preferably identically designed arms, which are telescopically to form a snap closure.
  • both the arms of the latching pin and the arms of the holding element are inserted through the opening in the holding elements to be connected, wherein the latching lugs of the individual arms interlock with one another to form an immovable latching connection.
  • the length of the arms can be adapted to the respective thickness of the material parts to be joined. This can be avoided that a part, for example, the end of the pin of the locking pin protrudes from the material parts. Only the heads of the detent pin and of the retaining element rest on the material parts in the connected state.
  • the holding element has a central opening for receiving the pin of the latching pin, wherein the springs are arranged on the underside of the holding element.
  • the lower ring is arranged in the connected state between the holding element and the material parts, so that a rotation of the holding element relative to the lower ring leads to a tension of the material parts.
  • latching pin and retaining element consist of plastic.
  • the lower ring can also be made of plastic. It is also conceivable that only the parts which have reversibly bendable arms with locking lugs, made of plastic, while the non-bendable parts such as the locking pin or the lower ring of a different material such as metal.
  • the pin is rotatably mounted relative to the head of the detent pin.
  • the lower ring is rotatably connected to the locking pin.
  • the lower ring is no additional loose part of the fastening device according to the invention, but is connected to the locking pin. It is also conceivable that the lower ring is rotatably connected to the holding element.
  • the head of the latching pin or the holding element has a handle. As a result, the rotation of the element carrying the springs relative to the lower ring is facilitated.
  • the holding element comprises a lower part and an upper part, each having a central opening for inserting the pin of the latching pin, wherein the springs are arranged on the underside of the lower part and wherein in the assembled state of the lower ring between the or the material parts and the lower part and the lower part between the lower ring and the upper part is arranged.
  • the pin has at least two anti-rotation grooves as well as the upper part and the lower ring each at least two anti-rotation springs, wherein the anti-rotation springs are arranged so that when inserting the pin through the central openings of the lower ring, the lower part and the upper part in each case a Vermosiêt- spring of the lower ring and the upper part in one of the anti-rotation nut. engages the pin.
  • the anti-rotation grooves are preferably arranged along the longitudinal axis of the pin.
  • the upper part and the lower ring are fixed relative to a rotation relative to the detent pin, while the lower part is rotatable relative to lower ring, upper part and detent pin, wherein
  • the holding element can be moved from the basic position into the clamping position.
  • the latching pin may have on its head a gripping element, by means of which it can be held against the bottom of the piece by hand.
  • the upper part and the lower part and the lower part and the lower ring are pre-assembled with each other before the actual assembly, wherein the upper part or lower part preferably has clip hooks, by means of which the upper part and the lower part are preassembled, and wherein Lower part or the lower ring further preferably Haltefe- has countries which can be introduced for pre-assembly in at least one corresponding retaining groove of the lower ring or the lower part. Simply clicking in or clipping in each of two of the three components to create a preassembled unit consisting of upper part, lower part and lower ring simplifies assembly for the production of the locking connection.
  • the upper part during pre-assembly relative to the lower part is aligned so that the anti-rotation springs of the upper part and the lower ring after installation are congruent to each other and in the corresponding anti-locking grooves of the Pin can be introduced, wherein the tongue and groove connection preferably dissolves when turning the lower part, in particular by shearing the spring of the tongue and groove joint, and releases a rotation of the lower part.
  • the upper part, lower part and Unterlegring in the pre-assembly directly aligned, so that the unit of these components directly on the
  • Pin of the locking pin can be plugged.
  • Figure 1 a first embodiment of the fastening device according to the invention in a side view
  • Figure 2 an embodiment of the invention Flalteelements in a perspective view
  • Figure 3 the fastening device according to Figure 1 in a lateral
  • Figure 4 an embodiment of the invention Unterlegrings in a perspective view
  • FIG. 5 shows a perspective view of the fastening device according to FIG. 3, the head of the detent pin being located opposite the lower ring in the basic position;
  • Figure 6 the fastening device according to Figure 3, wherein the head of the locking pin relative to the lower ring is in the clamping position, in a perspective view;
  • FIG. 7 shows a perspective view of a second exemplary embodiment of the fastening device according to the invention in a non-connected state
  • FIG. 8 shows the embodiment according to FIG. 7 in a connected state in a perspective view
  • FIG. 9 shows a third exemplary embodiment of the fastening device according to the invention in a perspective view
  • FIG. 10 shows a fourth exemplary embodiment of the fastening device according to the invention in a perspective view
  • FIG. 11 shows a fifth exemplary embodiment of the fastening device according to the invention in a side exploded view
  • Figures 12a-b the locking pin according to the embodiment of Figure 11 in a perspective view and a plan view of the bottom;
  • FIGS. 13a-b the lower ring according to the exemplary embodiment of FIG. 11 in a perspective and a lateral view;
  • Figures 14a-b the lower part of the Flalteelements according to the embodiment of Figure 11 in a perspective view of the top and the bottom;
  • FIG. 15 the upper part of the Flaltelements according to the embodiment of
  • Figure 16 The pre-assembled element of the lower part and upper part in a perspective view
  • FIGS. 17c the fastening device according to FIG. 11, wherein the lower part of the flap element is in the basic position relative to the lower ring, in a perspective view;
  • FIGS. 17b the fastening device according to FIG. 17a, the lower part of the flanging element being rotated relative to the lower ring
  • FIGS. 17c the fastening device according to FIG. 17a-b, wherein the lower part of the flap element is in the clamping position relative to the lower ring;
  • FIG. 18 shows a further exemplary embodiment of the latching pin in a perspective view.
  • the fastening device 10 comprises three elements: a detent pin 12, a flattening element 14 and a leg ring 22.
  • the detent pin 12 has a cylindrical pin 16 which has a plurality of longitudinally along the pin 16 juxtaposed locking lugs 20 which each along the entire circumference of the pin 16 stretch.
  • the pin 16 has at one end a head 18, which has a wing-shaped handle.
  • the latching lugs 20 are chamfered in the direction of the free end of the pin 16.
  • the holding element 14 has a central opening through which the pin 16 of the latching pin 12 can be inserted. Further, four arms 36 are arranged on the holding element 14, which are arranged around the opening and extend perpendicular to this. In a state in which the holding element 14 is fitted onto the pin 16 of the latching pin 12, the arms 36 thus extend along the longitudinal direction of the pin 16.
  • the arms 36 also have several at the respective side facing the opening or the pin 16 Latches 20 which engage in the attached state in the locking lugs 20 of the pin 16.
  • the latching lugs 20 of the arms 36 are chamfered in the direction of the opening, so that the chamfered surfaces of the latching lugs 20 of the pin 16 and the arms 36 lie against each other.
  • both the detent pin 12 and the retaining element 14 can be made of plastic.
  • a plurality of material parts 40 for example wood panels, metal sheets, leather, fabric or other elements, can be firmly and non-detachably connected to each other.
  • material parts 40 to be joined only an opening in the material parts 40 to be joined must be present, through which the pin 16 of the latching pin 12 is inserted.
  • the holding element 14 On the free end of the pin 16, the holding element 14 is inserted and pushed in the direction of the material parts 40 in order to clamp this between the head 18 of the locking pin 12 and the retaining element 14.
  • FIG. 2 shows an exemplary embodiment of the holding element 14 according to the invention in a perspective view.
  • the locking lugs 20 of the arms 36 in the direction of the central opening of the holding element 14.
  • the edges of the locking lugs 20 are bent following the central opening, so that they form fit in the connected state with the circulating around the pin 16 Locking lugs 20 of the locking pin 12 are engaged.
  • FIG. 3 shows, in a lateral sectional view, a situation in which two parts of material 40 are connected to one another by means of the first exemplary embodiment of the fastening device 10 according to the invention.
  • the lower ring 22 is arranged between the head 18 of the latching pin 12 and the connected material parts 40.
  • the function of the lower ring 22 will be described in detail below with reference to FIG.
  • the pin 16 is rotatably mounted in the head 18 of the latching pin 12, so that the head 18 can be rotated without turning the pin 16.
  • FIG. 4 shows an embodiment of the lower ring 22 according to the invention.
  • the lower ring 22 has a central opening through which the pin 16 of the latching pin 12 can be inserted.
  • the lower ring 22 Arranged around the opening, the lower ring 22 has on its upper side two opposing grooves 26, which are delimited by vertical edges. Between the grooves 26, two opposing recesses 28 are further arranged, which have a greater depth than the grooves 26. Starting from the bottoms 32 of the recesses 28, ramps 30 extend along the edge of the opening in a counterclockwise direction (in plan view) towards the surface 31. The bottoms 32 of the recesses 28 are bounded by vertical walls in a clockwise direction. Both the recesses 28 and the grooves 26 are open towards the central opening.
  • the lower side of the head 18 of the latching pin 12 has two springs 34, which are arranged corresponding to the grooves 26 of the lower ring 22.
  • the two springs 34 fit in both the grooves 26, and in the recesses 28 of the lower ring 22.
  • the springs 34 In the connected state, in which the lower ring 22 between the head 18 of the locking pin 12 and the material parts 40 is arranged, the springs 34 be arranged either in a clamping position within the grooves 26 or in a basic position within the recesses 28, in the latter case, the springs 34 rest on the bottoms 31 of the recesses 28.
  • the springs 34 and the locking pin 12 are in the clamping position, which is characterized in that the Ab- stood between holding element 14 and lower ring 22 is lower than in the basic position.
  • retaining element 14 and lower ring 22 are pressed against the material parts 40 from both sides, which are clamped in this way.
  • FIGS. 5 and 6 show the arrangement shown in FIG. 3 with two connected material parts 40 in a perspective view.
  • the locking pin 12 is opposite the lower ring 22 in the basic position.
  • FIG. 6 shows the situation in which, after rotation of the head 18 relative to the lower ring 22, the locking pin 12 is in the clamping position. It can be seen that the head 18 has lifted off the lower ring 22, ie that a gap has formed between these elements, as a result of which the material parts 40 are firmly pressed together.
  • the lower ring 22 Without the use of the lower ring 22, it could occur that, due to the division or discrete spacing of the latching lugs 20, the smallest possible distance between the head 18 of the latching pin 12 and holding element 14 in the connected state is greater than the thickness of the material parts 40 to be joined For connections with low tolerance, such a rough form fit may be sufficient. However, in order to exclude tolerances and to achieve an exact positive connection, it is possible by the use of the lower ring 22 according to the invention and the previously described bringing the springs 34 into the clamping position to bring the bonded material parts 40 to pretension or extension.
  • a second embodiment of the fastening device 10 is shown in non-connected and connected state.
  • the pin 16 'of the detent pin 12' is split in two, wherein each of the two arms of the two-part pin 16 'has a cross section which is substantially similar to a circular sector.
  • the tips of the circular sector-shaped arms in this case have each other, while the locking lugs 20 are arranged on the inner straight edges.
  • the holding element 14 'in this embodiment has no central opening through which the pin 16' is pushed, but a head with two arms 36 'arranged thereon, which is identical to the arms of the two-part pin 16' of the detent pin 12 ' are.
  • the arms of the latching pin 12 'and of the holding element 14' are pushed into one another, as shown in FIG.
  • the reversible bending of the respective arm makes it possible to push each other into one another, while a pulling apart is blocked.
  • the springs 34 are also arranged on the head 18 of the latching pin 12 ', so that the lower ring 22 (not shown here) is arranged in the connected state between locking pin 12' and material part 40.
  • the shape of the arms of the pin 16 'and of the retaining element 14' can also be designed differently, in particular in their cross section.
  • FIGS. 9 and 10 show a further exemplary embodiment of the fastening device 10 according to the invention in a connected state.
  • the pin 16 of the latching pin 12 "and the holding element 14", 14 '" are configured similar to the first exemplary embodiment.
  • the holding element 14 ", 14 '" has the springs 34 and a handle.
  • the handle of the holding element 14 " is wing-shaped, whereas in FIG. 10 it is configured as opposite flattened indentations.
  • the holding element 14 ", 14 '” only two armed with locking lugs 20 arms 36, wherein also different configurations are possible.
  • the lower ring 22 (not shown here) is thus arranged in the connected state between the holding element 14 ", 14 '" and the material parts 40, wherein the tension or jamming by rotating the holding element 14 ", 14'” relative to the Unterlegring 22 takes place.
  • the head 18 'of the detent pin 12 " has an opening 38, via which it is possible to attach additional elements to the fastening device 10 according to the invention.
  • a ring or a hook element can be connected via the opening 38 to the detent pin 12 ", via which or other elements can then be fastened to the fastening device 10 or the material parts 40 connected thereby.
  • FIGS. 11-18 A further embodiment of the fastening device 10 'according to the invention is shown in FIGS. 11-18.
  • FIG. 11 shows a side exploded view of the various components of the fastening device 10 ', with a locking pin 12 ", which is located within a cylindrical bore of a material part 40.
  • the holding element 140 is designed in two parts, with a lower part 141 and an upper part 142.
  • the lower ring 220 is in the mounted state between the holding element 140 or its lower part 141 and the material part 40 or the material parts to be joined 40th
  • springs 150 guided in grooves 222 of the lower ring 220 are also arranged on the lower part 141 of the holding element 140 facing the lower ring 220, whereby a corresponding rotational movement of the lower part 141 relative to the lower ring 220 leads to a tension or jamming of the material parts 40.
  • Figures 12a and 12b show a perspective view and a plan view of the underside of the detent pin 120.
  • the head 180 of the detent pin 120 has a round support surface and a handle bar 182 for manually holding the detent pin 120 when making the connection or the tension on.
  • the grip web 182 has a rectangular opening 184, which can be used for fastening various elements, for example a cable tie, a rope, etc.
  • the detent pin 120 comprises a pin 160 which, in addition to the detents 200, has three anti-rotation grooves 162 which run along the circumference. Fangs of the pin 160 at regular intervals, ie each offset by 120 ° to each other, are arranged and extend over the entire length of the pin 160 parallel to its longitudinal axis. The anti-rotation grooves 162 thus interrupt the latching noses 200 revolving around the pin 160.
  • the lower ring 220 according to the invention is shown in FIGS. 13a and 13b in a perspective view and a side view.
  • the lower ring 220 of the present exemplary embodiment has three grooves 222 and three recesses 224, which each have the properties and functions discussed in the description of the lower ring 22 shown in FIG Have tension in conjunction with the Flalteelement 140. On a repetitive description is therefore omitted at this point, as far as the features and properties correspond to those of the previous embodiment.
  • the lower ring 220 has, in the region of the grooves 222, anti-rotation springs 232 which form extensions of the bottoms of the grooves 222 and protrude into the central opening of the lower ring 220 in the direction of the center.
  • the three anti-rotation springs 232 of the lower ring 220 correspond to the three anti-rotation grooves 162 of the detent pin 120, ie they project into the central opening of the lower ring 220 by a distance substantially corresponding to the depth of the anti-rotation grooves 162 and have one corresponding width.
  • the grooves 222 and the anti-rotation springs 232 are arranged uniformly along the circumference of the lower ring 220 at 120 ° to each other.
  • a different number of grooves 222, recesses 224 and anti-rotation springs 232 for example only two or more than three, as well as a different arrangement, in particular a non-uniform arrangement along the circumference of the lower ring 220, are also possible, together with a corresponding number and arrangement of Verwarschommesnuten 162nd
  • the lower ring 220 also has on the outer side a circumferential retaining groove 234, which has a U-shaped profile (see Figure 13b). Other profiles are also possible.
  • the lower ring 220 has at the upper outer edge above the retaining groove 234 three uniformly distributed on the circumference rectangular recesses 236, whose function will be described below.
  • the lower part 141 of the holding member 140 is shown in a perspective view looking at the top thereof.
  • the lower part 141 is substantially circular in shape with two radially outwardly extending and opposing (ie offset by 180 °) wings 144.
  • the wings 144 act as handles for the dog-like rotation of the lower part 141 to its springs 150 im Cooperation with the lower ring 220 to spend in the clamping position and thereby bring the bonded material parts 40 to bias or stretch.
  • one side of the wings 144 is concave-shaped, with gripping elements 145 arranged on the curved surface, in order to facilitate gripping and turning of the holding element 140.
  • any other configurations and arrangements of the wings 144 are conceivable.
  • the lower part 141 also has a central circular opening through which the pin 160 of the locking pin 120 is inserted for the preparation of the permanent connection.
  • the diameter of the central opening is at least as large as the outer diameter of the pin 160, so that the lower part 141 can be rotated relative to the pin 160 in the plugged state.
  • the lower part 141 has on the outer edge of the top three upwardly extending reversibly bendable clip hook 146.
  • the upper part 142 of the holding element 140 can be attached to the lower part 141 for pre-assembly and by exerting pressure to bend the clip hooks Click or clone in.
  • the upper part 142 which is shown in FIG. 15, has an outer diameter which is smaller than the outer diameter of the circular main body of the lower part 141, so that the outer edge of the upper part 142 in the clipped-in state on the insides of the clip shaken 146 abuts or almost rests.
  • a thin positioning spring 148 is arranged on the directed towards the central opening outside of the wing 144, which is in the correct mounting position in a corresponding positioning groove 158 of the upper part 142 can be introduced ,
  • the lower part 141 is shown in a perspective view with a view of the lower side.
  • the lower side 155 of the lower part 141 is set back relative to a circumferential outer edge.
  • Three springs 150 which are composed of an oblique part 152 and a flat part 151, project from the underside 155, whereby the inclined part 152, starting from the lower side 155 towards the flat part 151, rises in the direction of rotation in the circumferential direction.
  • the shape of the springs 150 is substantially complementary to the recesses 224 of the bottom ring 220.
  • the oblique parts 152 of the springs 150 each have an outlet. savings 153, within which the projections 230 come to lie in the clamping position.
  • the flat walls of the recesses 153 which face the flat parts 152 of the springs 150, cooperate in the clamping position with the projections 230 in a form-fitting manner and fix the springs 150 or the lower part 141 in the clamping position with respect to a continued rotational movement ,
  • the flat walls of the grooves 222 opposite the projections 230 secure the lower part 141 with respect to an opposite rotational movement, so that the retaining element 140 no longer moves back to the basic position from the once reached clamping position.
  • the lower part 141 is fixed in the clamping position in all directions and has a greater distance to the lower ring 220 than in the basic position, which causes the tension.
  • the lower ring 220 On the inner side of the peripheral outer edge of the underside 155 of the lower part 141, three respective flat springs 154 are arranged which are offset by 120 ° relative to one another and protrude inwardly in the direction of the central opening for a short distance.
  • the lower ring 220 For pre-positioning of the lower ring 220 on the lower part 141, the lower ring 220 is clipped or clipped into the circular recess formed by the outer edge on the lower side of the lower part 141, the Flaltefedern 154 in the outside of the lower ring 220 (on its lateral surface ) engage around the flat groove 234 and pre-fix the lower ring 220, in particular with respect to a displacement relative to the lower part 141.
  • the two parts 141, 220 can not unintentionally detach from each other during assembly.
  • FIG. 15 shows a perspective view of the upper part 142 of the holding element 140, on the upper side of which around a central opening uniformly distributed around the circumference three arms 156 are arranged which substantially correspond to the arms 36 of the flap element 14 shown in FIG fulfill the same function with respect to the Fier ein a non-detachable locking connection with the locking pin 120.
  • the arms 156 also have latching noses 200 which point in the direction of the central opening of the upper part 142.
  • the upper part 142 has a central circular opening for receiving the pin 160 of the latching pin 120 with three anti-rotation springs 157 extending inwards (ie in the direction of the opening center).
  • the contour of the central opening is designed substantially identical to the contour of the central opening of the lower ring 220.
  • three positioning grooves 158 are arranged distributed on the outer side of the upper part 142 uniformly distributed over the circumference, wherein each of these positioning grooves 158 is in position with the positioning spring 148 of the lower part 141 (in which the lower part 141 with respect to the lower ring 220 in the mounting position) Basic position) can interact. Due to the discrete symmetry of the top 142 and bottom ring 220 with respect to 120 ° rotation, there are three 120 ° offset positioning grooves 158 so that each of the positioning grooves 158 can be used for pre-assembly.
  • FIG. 16 shows the holding element 140 assembled or preassembled from lower part 141 and upper part 142.
  • the upper part 142 was clipped on the upper side of the lower part 141 and is held by the three clip hooks 146 on the lower part 141.
  • the positioning spring 148 is located within one of the three positioning grooves 158 of the upper part 142.
  • the positioning spring 148 and grooves 158 are arranged so that when additional mounting of the lower ring 220, in which this is clicked into the lower side of the lower part 141 and the springs 150 in the respective recesses 224 (ie in the basic position ), the anti-rotation springs 157, 232 of the upper part 142 and the lower ring 220 are arranged congruently one above the other and thus can jointly engage in the corresponding Verwarêtsnuten 162 of the latching pin 120.
  • the upper part 142 and the lower ring 220 after insertion of the latching pin 120 are secured against rotation relative to the latching pin 120. Only the lower part 141 of the retaining element 140 can be rotated relative to the locking pin 120.
  • the thin positioning spring 148 which engages in a positioning groove 158 of the upper part 142 during pre-assembly, shears off, so that the lower part 141 can be rotated relative to the upper part 142 and the lower ring 220 for movement into the clamping position.
  • the positioning spring 148 thus only serves for the relative positioning of the upper part 142 for the pre-assembly.
  • FIG. 17 a shows the preassembled unit comprising lower ring 220, lower part 141 and upper part 142, which is plugged onto pin 160 of latching pin 120 pushed through an opening or bore of a component 40, with a holding element 140 in the basic position. Positioning spring 148 is still in the positioning groove 158.
  • the retaining springs 154 move out of the circumferential retaining groove 234 of the lower ring 220, so that the retaining compound serving only the pre-assembly dissolves.
  • the retaining springs 154 preferably engage in the recesses 236 on the outer upper edge of the lower ring 220 or come to rest there.
  • the lower ring 220 as well as the lower part 141 and the upper part 142 of the holding element 140 are preassembled to form a unit.
  • the pin 160 of the latching pin 120 is pushed through an opening or bore of the material part 40 to be clamped or the material parts 40 to be clamped or connected. From the other side, the preassembled unit 220, 141, 142 is pushed onto the pin 160 as far as possible.
  • the anti-rotation springs 157, 232 of the lower ring 220 and the upper part 142 are inserted into the anti-rotation grooves 162 of the pin 160.
  • the retaining element 140 can be pushed onto the detent pin 120 at a variable distance.
  • the component thickness of the material part 40 to be clamped can vary.
  • the latching noses 200 are latched, the pin 160 and the retaining element 140 are positively connected, but there is no pretension or contact pressure between the components on the material part or parts 40 to be clamped.
  • the lower part 141 In order to generate a pressing force of the retaining element 140 on the material part 40, the lower part 141 is rotated by 90 ° about its own axis. The lower ring 220 and the upper part 142 are secured against rotation and remain in the same position relative to the pin 160.
  • the locking pin 120 is secured to its head 180 by hand against rotation. Due to the rotation of the lower part 141 about its own axis, its springs 150 travel upwards on the slopes 228 of the depressions 224 of the lower ring 220.
  • the upper part 142 is fomnschlüs- sig connected to the pin 160, so creates a contact pressure between the material part 40 and the holding member 140.
  • FIG. 18 shows an alternative embodiment of the latching pin 120 'with a rounded head 180' without a gripping element or holding element and a square projection 186 arranged between the head 180 'and the pin 160.
  • the locking pin 120 ' must not be secured by hand against twisting.
  • Other geometries than the square approach 186 shown here are of course also possible, as well as different embodiments of the head 180 '.

Abstract

La présente invention concerne un dispositif de fixation (10) inamovible, en particulier un raccordement à encliquetage, destiné à raccorder plusieurs pièces matérielles, comprenant une broche d'encliquetage (12) et un élément d'arrêt (14), lesquelles comprennent chacune plusieurs ergots d'encliquetage qui peuvent être mis en prise les uns avec les autres par emboîtement de la broche d'encliquetage et de l'élément d'arrêt et par déformation ou torsion réversible au moins partielle de la broche d'encliquetage et/ou de l'élément d'arrêt dans la région des ergots d'encliquetage. Le raccordement par encliquetage se produisant ainsi permet un emboîtement supplémentaire de la broche d'encliquetage et de l'élément d'arrêt et bloque une séparation, les pièces matérielles étant serrées en introduisant une partie de la broche d'encliquetage à travers les pièces matérielles entre la broche d'encliquetage et l'élément d'arrêt.
EP19700327.0A 2018-01-29 2019-01-02 Dispositif de fixation inamovible Pending EP3714173A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018101944.0A DE102018101944A1 (de) 2018-01-29 2018-01-29 Unlösbare Befestigungsvorrichtung
PCT/EP2019/050036 WO2019145123A1 (fr) 2018-01-29 2019-01-02 Dispositif de fixation inamovible

Publications (1)

Publication Number Publication Date
EP3714173A1 true EP3714173A1 (fr) 2020-09-30

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ID=65013671

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Application Number Title Priority Date Filing Date
EP19700327.0A Pending EP3714173A1 (fr) 2018-01-29 2019-01-02 Dispositif de fixation inamovible

Country Status (3)

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EP (1) EP3714173A1 (fr)
DE (1) DE102018101944A1 (fr)
WO (1) WO2019145123A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017121253B4 (de) 2017-09-13 2023-03-30 Werner Bauer Verbindungsanordnung, Verbindungselement und Verfahren zur Herstellung einer Verbindungsanordnung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2797605A (en) * 1955-07-07 1957-07-02 Jr Robert W Metze Identical two-part headed fastener having engageable teeth
GB2249804A (en) * 1990-11-13 1992-05-20 Peter James Richards Stud fastening device.
DE10355674B3 (de) * 2003-11-28 2005-09-29 Stephan Erwin Dreh-Spreiz-Keil mit innenliegenden Schleppkeil
US9261129B2 (en) * 2013-07-08 2016-02-16 Lockon Llc Through-hull fitting
DE102015004515A1 (de) * 2015-04-13 2016-10-13 A.RAYMOND et Cie. SCS Befestigungsvorrichtung
US20170045073A1 (en) * 2015-08-13 2017-02-16 Jijun Liu EZ fastener series
GB2547210A (en) * 2016-02-10 2017-08-16 Solomon Asaf Releasable fastener

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WO2019145123A1 (fr) 2019-08-01
DE102018101944A1 (de) 2019-08-01

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