EP1454071A1 - Ecrou de raccordement concu pour visser des elements de construction sur un composant de type plaque - Google Patents

Ecrou de raccordement concu pour visser des elements de construction sur un composant de type plaque

Info

Publication number
EP1454071A1
EP1454071A1 EP02796570A EP02796570A EP1454071A1 EP 1454071 A1 EP1454071 A1 EP 1454071A1 EP 02796570 A EP02796570 A EP 02796570A EP 02796570 A EP02796570 A EP 02796570A EP 1454071 A1 EP1454071 A1 EP 1454071A1
Authority
EP
European Patent Office
Prior art keywords
nut
component
connecting nut
hole
fastening part
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.)
Withdrawn
Application number
EP02796570A
Other languages
German (de)
English (en)
Inventor
Gottfried König
Stephan Weitzel
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.)
Ejot GmbH and Co KG
Original Assignee
Ejot GmbH and Co KG
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 Ejot GmbH and Co KG filed Critical Ejot GmbH and Co KG
Publication of EP1454071A1 publication Critical patent/EP1454071A1/fr
Withdrawn legal-status Critical Current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
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • 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
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/041—Releasable devices
    • F16B37/043—Releasable devices with snap action

Definitions

  • Connection nut for screwing construction elements onto a plate-like component
  • the invention relates to a connecting nut for screwing construction elements onto a plate-like component, which has a holding element attached to a nut part for attachment to the component.
  • connecting nut is disclosed in EP 08 61 380 B1.
  • This connecting nut can be attached to a plate-like component in order to screw any structural elements to the component by means of a screw.
  • the screw is received by the nut part, which is connected to the component via holding elements attached to it.
  • These holding elements consist of snap hooks which reach through a through hole in the component and snap into place, whereby the plastic nut is attached to the component.
  • DE 44 12 431 Cl also describes a connecting nut, which also has a nut part and holding elements attached thereto, for attachment to a plate-like component.
  • the nut part of this connecting nut serves to receive an adjusting nut provided with an external thread for setting a desired distance from the component, the adjusting nut with its external thread being screwed into the nut part depending on the length of the desired distance.
  • the nut part has two snap hooks that connect the nut part to the component by snapping onto the component.
  • the two connection nuts specified above are constructed in one piece together with their retaining elements, the retaining elements designed as snap hooks being available for their secure connection to the plate-like component. Because of their necessary spring properties, the plastic nut in question has a certain flexibility with respect to the component, which is not always desirable.
  • the invention has for its object to provide a connecting nut with the design specified, which can be easily attached to a plate-like component and has a high stability with regard to the connection between its nut part and the component. According to the invention, this is done by means of a two-part design with the component between the nut part and the fastening part, which each penetrates a through hole in the component with a snap hook and can be connected to the nut part in such a way that a receiving bore in the holding element receives the snap hook on the holding element locks.
  • the invention therefore takes a different route, according to which the connecting nut according to the invention is formed in two parts. Due to this two-part design, it is possible to use the material for the mother part from a wide range of materials, which on the one hand has particularly favorable properties for the screwing in of self-tapping screws and on the other hand for the application in question and is able to apply the necessary holding forces.
  • the fastening part can then be made from a material which ensures the elasticity required for the snap hooks, for which purpose a plastic is suitable in this connection.
  • Plastic also has the advantage that, in view of the design of the fastening part with the snap hook, spraying is an option for a rational manufacturing process. But of course it is also possible to especially in the case of an appropriate length of the snap hook, to be made from a metal with appropriate elasticity. This results in a large selection of available materials for the production of the connecting nut, which is of crucial importance for an inexpensive manufacturing process. This selection option with regard to the material to be used for the connecting nut also allows the material of the connecting nut to be adapted to that of the plate-like component in the sense of an economical recycling process. In addition, it should also be pointed out that it is of course also possible to provide the nut part with an already cut or shaped thread if the use of standard screws is desired.
  • the mother part can be provided with a single attaching holding element and, accordingly, the fastening part with a single snap hook.
  • the nut part with two opposing holding elements and the fastening part with two snap hooks which are arranged on the fastening part in accordance with the position of the holding elements.
  • the fastening part is expediently designed as a flange which extends over the area of the holding element and the nut part and with one with the
  • Screw hole in the nut part is aligned with the through hole.
  • a construction element is then inserted with its screw head the construction element screw from the side of the fastening part into its through hole and screwed into the nut part until the nut is pressed against the component and thus also the construction element against the component with tightening the screw, with which the construction element is screwed onto the component.
  • the flange is expediently provided with spring elements which press the flange against the component.
  • the nut part with the holding elements can also be provided with spring elements which press the nut part with the holding element against the component.
  • Another possibility of the vibration-free attachment is to provide the flange with a slight curvature for pretensioning the snap hook in its longitudinal direction.
  • the undersize of the snap hook in relation to the through hole can be designed in such a way that it is an elongated hole, so that the undersize of the snap hook only exists in one direction (x direction), in which the plastic nut then provides a corresponding tolerance-compensating attachment allows. But you can also extend the undersize purely radially around the snap hook, so that the undersize corresponds to a round through hole, with which the tolerance-compensating attachment of the plastic nut extends in one plane in all directions (x-y direction).
  • the plastic nut is expediently designed such that the fastening part has a sleeve axially to the screw hole of the nut part protrudes from the flange and has an external thread onto which a support nut can be screwed to support a structural element to be fastened by means of the plastic nut and which optionally adjusts a distance to the component by twisting.
  • a screw passing through the nut part can only pull the construction element onto the component as far as the support nut allows, since the support nut can be screwed onto the sleeve to a greater or lesser extent, so that the support nut finally forms the abutment when the construction element is screwed on.
  • a variant of the arrangement of a support nut consists in arranging a sleeve on the fastening part axially to the screw hole of the nut part, which sleeve protrudes from the flange and contains an expandable tube piece which projects out of the sleeve to support a structural element to be fastened by means of the nut part a distance from the component 1, which can be determined by screwing a screw into the nut part and thereby expanding the pipe section relative to the sleeve and the frictional engagement.
  • a support surface can be formed similarly to the support nut mentioned above, with which a certain distance for the attachment of a construction element can be achieved continuously.
  • the fastening part is in the area of the snap hook is provided with an unlocking hole, through which an unlocking pin can be inserted into the receiving bore in such a way that a snap hook received by the receiving bore is unlocked.
  • the locking hook then returns the snap hook to the extent that it releases the fastening part, with which it can be pulled away from the component and thus also from the holding elements, so that the nut part is released.
  • the snap hooks When the snap hooks snap into place on the holding elements, the snap hooks can play with respect to the holding elements, which then leads to a correspondingly loose connection between the nut part with the holding element and the fastening part. This can be desirable in individual cases, especially if the connection nut has to be pushed back and forth with respect to the component before the final screwing on of a construction element for the purpose of tolerance compensation (see below).
  • the two-part design of the connecting nut can therefore be deliberately designed in such a way that there is play in the longitudinal direction for the snap hooks relative to the holding elements. This can also compensate for a thickness tolerance of the plate-like component in the area of this play.
  • the plastic nut according to the invention it is additionally possible to seal the through holes in the plate-like component which are connected to the plastic nut, specifically in that the nut part is provided with at least one circumferential sealing lip with the holding element. Accordingly, the fastening part can also be provided with at least one u-running sealing lip. This then ensures that water cannot penetrate through the component at the point of the attached plastic nut, which is particularly important in automobile construction. Exemplary embodiments are shown in the figures. They show:
  • FIGS. La-c the connecting nut with its two individual parts drawn apart, namely the fastening part (FIG. La) and the nut part (FIG. Lc), the plate-like component (FIG. Lb) being shown in between;
  • Figure 2 shows the compound connecting nut, attached to the plate-like component with a screwed in.
  • Fig. 4 is a curved holding element also for vibration-proof
  • Fig. 5 shows a component with 3 circular openings, into which the snap hooks fit straight
  • FIG. 6 shows a component with 3 elongated holes, which allows the inserted snap hooks to play the fastening part in the longitudinal direction of the elongated holes;
  • FIG. 9 shows another design of a sleeve for securing the distance
  • Fig. 10 the design of the connecting nut in such a way that a
  • FIG. 11 a u. b a design of the nut part with a sealing lip in a side view (FIG. 11a) and in the associated top view (FIG. 11b);
  • FIG. 12 a - c the embodiment of the fastening part with a circumferential sealing lip
  • FIG. 13 shows the design of a connecting nut with only one snap hook in a representation which in principle corresponds to that of FIG. 1,
  • Fig. 14 is a connecting nut with hooks attached to spring arms in
  • La, lb, lc is the connecting nut with its separately drawn
  • the fastening part 4 (for a top view, see FIG. 12a) has the flange 6 and the two snap hooks 7 and 8 projecting from it, the latter each being provided with the shoulder 9 and 10, respectively, which are used when assembling the fastening part 4 and the holding elements 2 and 3 snap into place.
  • the two components are joined together by inserting the fastening part 4 with its two snap hooks 7 and 8 into the receiving bores 11 and 12 in the holding elements 2 and 3, these taking up a position as described below with reference to FIG. 2 becomes.
  • the component 5 is pressed onto the nut part 1 with the two holding elements 2 and 3, whereby the connecting nut assembled from the two components mentioned above is connected to the plate-like component 5.
  • the component 5 has the two openings 13 and 14 which are penetrated by the two snap hooks 7 and 8 when the assembly is made.
  • the component 5 also has the through hole 15, which will be discussed in more detail below.
  • connection nut which has been joined and attached to the component 5.
  • the Fig. Shows the two snap hooks 7 and 8, with their shoulders 9 and 10 completely penetrate the mounting holes 11 and 12 and sit with their shoulders 9 and 10 behind the edge of the mounting holes 11 and 12, with which the fastening part consisting of Flange 6 and the two snap hooks 7 and 8, on the nut part 1 with the two holding elements 2 and 3 is locked.
  • the component 5 is held between the flange 6 and the surface 16 by the nut part 1 and the two holding elements 2 and 3 (see FIG. 1 c).
  • the screw 17 is screwed into the nut part 1 of the connecting nut, and its head 18 presses a construction element 19 against the flange 6, whereby the construction element 19 is screwed onto the component 5.
  • the two holding elements 2 and 3 it is not necessary for the two holding elements 2 and 3 to be free of play when the shoulders 9 and 10 snap in relative to the holding elements 2 and 3 detect, that is, when joining the fastening part 4 and the holding elements 2 and 3, a certain amount of play in the area of the shoulders 9 and 10 may initially remain.
  • the connecting nut is captively attached to the component 5. If the screw 17 is then screwed into the nut part 1, as described above, the screw head 18 pulls the construction element 19 and the nut part 1 tightly together, so that the previously existing game in the area of the shoulders 9 and 10 does not play a role.
  • FIGS. 1 and 2 The embodiment shown in FIGS. 1 and 2 is a fastening part 4 and a nut part 1 with the two holding elements 2 and 3, which are made of plastic and are preferably made as molded parts. Due to the material used, there is a certain bending elasticity for the two snap hooks 7 and 8 relative to the flange 6, so that when the snap hooks 7 and 8 are inserted into the receiving bores 11 and 12, the snap hooks 7 and 8 can spring back slightly against a pretension until they then, as described above, snap their shoulders 9 and 10 onto the edge of the mounting holes 11 and 12. Because of the use of plastic for the nut part 1, it is readily possible to design the screw 17 as a self-tapping screw, i.e. in the nut part 1, its bore 20 (FIG. 1c) receives a grooved thread when the screw 17 is screwed in. The screw 17 penetrates the through hole 15 already mentioned above (see FIG. 1b).
  • FIG. 3 a, b, c show a design of the connecting nut with the two components fastening part 4 and nut part 1 with the two holding elements 2 and 3, which, apart from tolerance tolerances described below, same elements, with the same components shown in Figs. La and c agree.
  • FIG. 4 shows another type of tolerance compensation, which is achieved here in that the flange 25 of the fastening part 4 in its longitudinal direction has a slight curvature that is clearly visible from FIG. 4, through which the snap hooks 26 and 27 in the relaxed position of the fastening part 4 slightly away from the flange 25.
  • the component 5 has three openings, namely the two openings 13 and 14 for receiving the snap hooks 7 and 8 and the through hole 15. If these openings have such a size that the parts passed through them , namely snap hooks 7 and 8 and the screw 17 fit straight into it, as shown in FIG. 5, then when the fastening part 4, component 5 and nut part 1 are joined together with the two holding elements 2 and 3, there is no play in the plane of the component 5 Position of the connecting nut in relation to the component 5. If, however, it is desired to give the connecting nut a play in relation to the component 5, the component 5 can be designed as shown in FIG. 6, namely with elongated holes Breakthroughs 28, 29 and 30. This design results in play in the longitudinal direction of the component 5 (y direction).
  • the openings 31, 32 and 33 are formed as relatively large round holes, as shown in FIG. 7, then there is play in the plane in all directions (xy direction). In the exemplary embodiments according to FIGS. 6 and 7, there is therefore an undersize of the snap hooks in relation to the openings in question.
  • FIG. 8 shows an exemplary embodiment which makes it possible to mount a construction element 19 at a desired specific distance from the component 5.
  • the flange 34 of the fastening part with the two snap hooks 7 and 8 has the sleeve 35 which protrudes from the flange 34, namely axially to the bore 20 which forms the screw hole in the nut part 1.
  • the sleeve 35 is provided with an external thread onto which the support nut 36 is screwed, which is provided with the internal thread 37 for this purpose.
  • FIG. 9 Another type of setting a certain distance between the construction element 19 and the component 5 is shown in FIG. 9.
  • the flange 38 of the fastening part again has a sleeve 39 which protrudes axially from the flange 38 as in the exemplary embodiment according to FIG. 8, but has the pipe section 40 which fits snugly into the sleeve 39.
  • This fitting is shown in FIG. 9 as a kind of roughening of the surfaces in question in order to mutually give the two components, namely the sleeve 39 and the pipe section 40, a certain amount of support in the sense of a frictional connection.
  • the pipe section 40 has several longitudinal slots 42 axially, which give the pipe section 40 the opportunity to expand.
  • the pipe section 40 is inserted into the sleeve 39 until the end face of the pipe section 40 facing the screw head 18 has reached the desired position.
  • the screw 17 is then screwed into the nut part 1, a cylindrical region 43 of the screw 17 being forced into the pipe section 40 and the pipe section 40 being widened accordingly. Due to this widening, made possible by the slots 42, the tube piece is pressed against the inner wall of the sleeve 39 and thus held in frictional engagement with the sleeve 39.
  • a connecting nut in which an unlocking of the snap hooks 7 and 8 of the fastening part can be achieved.
  • the flange 44 of the fastening part has unlocking holes, of which only the unlocking hole 45 is directly visible and labeled.
  • the unlocking pin 47 which serves to unlock the snap hook 8, is inserted in a further unlocking hole.
  • the unlocking pin 48 is provided for unlocking the snap hook 7, but is drawn at a distance from the flange 44 so that the unlocking hole 45 is visible through this drawing.
  • the mounting holes for the snap hooks 7 and 8 in the flange 44 are for additional Chen receiving the unlocking pins 47 and 48 expanded accordingly.
  • a sealing of the openings 13, 14 and 15 in the component 5 can also be achieved by means of the connecting nut described above. This is done in that the nut part 1 is provided with the holding elements 2 and 3 with a sealing lip. According to FIG. 11a (side view), there is the sealing lip 49, which runs around the edge of nut part 1 with the two holding elements 2 and 3 and consists of a resilient, resilient plastic. Then, with the sealing lip 49, the nut part 1 with the two holding elements 2 and 3 presses against a component which is not shown in FIG. 11a, for example the component 5 according to FIGS. 1 and 2 can.
  • the fastening part 4 is also provided with such a circumferential sealing lip, namely on both sides of the flange 50.
  • FIG. 13 shows a connecting nut in a manner corresponding to FIG. 1, in which the fastening part 53 is provided with only one snap hook 54 which attaches to the flange 55 of the fastening part 53.
  • the snap hook 54 penetrates the opening 57 in the component 58.
  • the snap hook 54 is provided with two tongues which are located on your shoulders Place 60 and 61 behind the relevant edge of the mounting hole 59. Even with such a design of a connecting nut, it is possible, according to the fastening method shown in FIGS. 1 and 2, to attach a structural element to the component 58, specifically with a screw which penetrates both the flange 55 and the component 58 and penetrates into the nut part 62 ,
  • This further embodiment is a connecting nut for screwing construction elements onto a plate-like component with a through hole for a screw to be screwed into a nut part of the connecting nut and two receiving holes for hooks attached to the connecting nut.
  • This connection nut is based on the task already mentioned above, that it can be attached to a plate-like component in a simple manner and has a high stability with regard to the connection between its nut part and the component.
  • the connecting nut 70 is shown separately from the plate-like component 71, specifically in FIG. 14a in a side view with the component 71 and in FIG. 14b solely in a top view.
  • the connecting nut 70 has the nut part 72 in which the through hole 73 is provided for receiving the screw 87 shown in FIG. 17.
  • the spring arms 74, 75 which end in hooks 76, 77, are attached to the nut part 72.
  • the connecting nut 70 consists of a plastic which gives the spring arms 74, 75 the necessary elasticity for the process of attaching the connecting nut 70 to the component 71.
  • the spring arms 74 and 75 are injection molded onto one side of the nut part 72.
  • the nut part 72 has the collar 78 which, with its end face facing the component 71, offers a correspondingly large contact surface with respect to the component 71. In order to facilitate the insertion of a screw into the through hole 73, this has the extension 79 in the region of the collar 78.
  • the spring arms 74, 75 are designed as plastic strips which are kinked close to the nut part 72 and which at their ends 80, 81 merge into round extensions 82, 83, on which the hooks 76, 77 attach.
  • the component 71 here forms a plate which has the through hole 84 for receiving the screw 87 and the through holes 85, 86 for receiving the hooks 76, 77.
  • FIG. 15 the attachment of the connecting nut 70 to the component 71 is shown in two phases, namely by a drawn division of the nut part 72, the left part, the position of the spring arm 74 with slight pressure on the component 71 and the right part shows the pressing process with a position of the spring arm 75 in which the hook 77 is guided into the through hole 86.
  • the two hooks 76, 77 finally slide through the through holes 85, 86.
  • the spring arms 74, 75 snap back, the hooks 76, 77 locking against the component 71, as clearly shown in FIG. 16.
  • the connecting nut 70 is thus preassembled on the component 71.
  • the collar 78 can already touch the component 71; however, it can also maintain a short distance from component 71, as shown in FIG. 16. In the position shown in FIG. 16 of the connecting nut with nut part 72 and component 71, a screw 87 can then be screwed into the nut part 72.
  • FIG. 17 shows the connecting nut 70 with the screw 87 screwed in, which fastens a construction element 89 to the component 71 with its screw head 88.
  • the nut part 72 receiving the screw 87 thus ensures that, in the sense of functioning as a connecting nut 70, the structural element 89 is firmly screwed to the component 71, the preassembled connecting nut 70 ensuring that the structural element 89 is easily attached to the component 71.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)
  • Dowels (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

La présente invention concerne un écrou de raccordement conçu pour visser des éléments de construction sur un composant de type plaque (5, 58). Cet écrou de raccordement présente un élément de maintien (2, 3; 56) qui est rattaché à une partie d'écrou (1, 62) et qui permet l'application sur ledit composant. Il s'agit d'une structure en deux parties, avec une partie d'écrou (1, 62) et une partie de fixation (4, 53) qui enferment ledit composant (5, 58), ladite partie de fixation passant respectivement avec un crochet encliquetable (7, 8; 26, 27; 54) à travers un trou de passage (13, 14; 28, 29; 31; 32; 57) ménagé dans le composant (5, 58) et pouvant être raccordée à ladite partie d'écrou (1, 62). Un orifice de réception (11, 12; 59) ménagé dans ledit élément de maintien (2, 3; 56) reçoit le crochet encliquetable (7, 8; 26, 27; 54) qui s'encliquette sur cet élément de maintien (2, 3; 56).
EP02796570A 2001-12-04 2002-12-04 Ecrou de raccordement concu pour visser des elements de construction sur un composant de type plaque Withdrawn EP1454071A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10159380 2001-12-04
DE10159380A DE10159380B4 (de) 2001-12-04 2001-12-04 Verbindungsmutter zum Anschrauben von Konstruktionselementen an einem plattenartigen Bauteil
PCT/EP2002/013727 WO2003048591A1 (fr) 2001-12-04 2002-12-04 Ecrou de raccordement concu pour visser des elements de construction sur un composant de type plaque

Publications (1)

Publication Number Publication Date
EP1454071A1 true EP1454071A1 (fr) 2004-09-08

Family

ID=7707890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02796570A Withdrawn EP1454071A1 (fr) 2001-12-04 2002-12-04 Ecrou de raccordement concu pour visser des elements de construction sur un composant de type plaque

Country Status (9)

Country Link
US (1) US20050042057A1 (fr)
EP (1) EP1454071A1 (fr)
JP (1) JP2005511979A (fr)
KR (1) KR20040071164A (fr)
CN (1) CN1599844A (fr)
AU (1) AU2002361975A1 (fr)
BR (1) BR0206972A (fr)
DE (1) DE10159380B4 (fr)
WO (1) WO2003048591A1 (fr)

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WO2003048591A1 (fr) 2003-06-12
US20050042057A1 (en) 2005-02-24
JP2005511979A (ja) 2005-04-28
CN1599844A (zh) 2005-03-23
KR20040071164A (ko) 2004-08-11
DE10159380B4 (de) 2005-09-29
DE10159380A1 (de) 2003-06-18
AU2002361975A1 (en) 2003-06-17

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