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
  • F16B37/08—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

Definitions

• the invention relates to a mounting system with a fastening bolt and a mounting part that can be plugged onto it, and a method for forming a mounting system.
• the mounting part can in particular be a holder for fastening lines to components of an automobile.
• the fastening bolt can preferably be a welding bolt, in particular a radially resilient hollow bolt.
• Mounting systems with a fastening bolt and a mounting part that can be plugged on are known.
• the material of the assembly part deforms plastically.
• the fastening bolts usually have a structured surface, the elevations of which can still be pressed into the material of the fastening part even after they have been plugged on, in particular if the material is plastic.
• a mounting system in which a mounting part is plugged onto a pin formed on a structure with an outer profile.
• a flat material can be introduced into lateral recesses in the mounting part or between the head of the mounting part and the structure, so that the flat material is fixed to the structure.
• Such a mounting system is used in particular in the motor vehicle industry for fastening carpets, floor mats, insulating mats and the like in relatively complicated geometries to a structure, such as. B. a body.
• the mounting parts of such mounting systems are also called fastening clips.
• a hollow, sleeve-like fastening bolt is known from WO 94/03735, which can be elastically compressed or expanded in the radial direction.
• the hollow fastening bolt can be welded to a structure with an axial end.
• the fastening bolt has an external thread.
• assembly parts which can be plugged onto the fastening bolt, in particular those assembly parts whose assembly connection with the fastening bolt can be secured by a locking element which can be plugged into the interior of the sleeve-like fastening bolt, so that the fastening bolt is compressed radially is prevented.
• the fastening bolt has recesses or holes on the side into which projections of correspondingly shaped assembly parts can engage or engage, so that an assembly connection is secured. The assembly part is plugged on using the elasticity of the fastening bolt in the radial direction.
• DE 38 02 698 C2 discloses a line holder which can be plugged onto a profiled bolt or peg and which has a plurality of partially annular receptacles for receiving lines. After cables have been inserted, the retaining connection is closed by placing a wedge bracket over the sensor openings.
• the object of the present invention is to provide a method for forming a mounting system, in which the mounting part can be easily plugged onto the fastening bolt, but is difficult to remove.
• any fastening parts with bolt-like outer contours in particular also the sleeve-like described above radially elastic fastening bolts which can be fastened to a structure or are formed on the structure in the manner of a pin.
• Another object of the invention is to provide a mounting part for such a mounting system.
• a mounting part which has a receiving space
• a fastening bolt which is radially elastic at least in the area of a front opening.
• the mounting part is placed on the fastening bolt so that the fastening bolt protrudes into the receiving space.
• a clamp body is moved from a first position outside the fastening bolt to a second position within the fastening bolt. In the second position, the clamping body projects into the opening of the fastening bolt with little or no play.
• the inner surface of the receiving space and the outer surface of the fastening bolt form a non-positive connection. The connection between the mounting part and the fastening bolt can be achieved with relatively little effort.
• the mounting part be equipped with at least one component before or after a movement of the clamping body.
• a mounting system can also be facilitated in that the clamping body is connected to the mounting part via a material connection, in particular in one piece.
• the clamping body is separated from the mounting part.
• the material connection between the mounting part and the clamping body is removed, a new, positive or non-positive connection can arise between the clamping body and the mounting part.
• the clamping body and the mounting part form a structural unit, there is essentially only a part that must be handled. The proposed procedure is particularly suitable for automation, since only one component has to be handled.
• a securing element which is firmly connected to the clamping body, is moved from a first position outside the securing bolt to a second position within the securing bolt after the mounting part has been attached to the securing bolt, that the securing element in the second position engages at least at two opposite points on the outer circumference of a wall of the receiving space.
• This embodiment has the advantage that a radially inward force is generated on the wall via the securing element, by means of which the non-positive connection between the fastening bolt and the receptacle is increased. This makes pulling off the mounting part from the fastening bolt even more difficult.
• the fastening bolt is at least partially radially elastic.
• This property is preferably achieved in that the fastening bolt is designed like a sleeve with a slot running approximately in the longitudinal direction.
• the elasticity of such a fastening bolt can be increased by at least one axial window which extends over part of the axial length of the fastening bolt.
• the receiving space of the mounting part is preferably designed so that the fastening bolt is radially compressed when it is attached. Because of its elasticity, outward restoring forces occur, which may result in a non-positive connection between the fastening bolt and the mounting part.
• the fastening bolt has an opening at the end. Furthermore, the mounting system has a clamping body which can be inserted into the opening of the bolt with little or no play.
• the clamping body is preferably connected to the mounting part. After the mounting part has been fitted onto the fastening bolt, the clamping body is moved from a first position outside the fastening bolt to a second position within the fastening bolt.
• the Klemmkö ⁇ er is inserted into the front opening of the fastening bolt, so that the sleeve-like fastening bolt is spread apart and the forces acting approximately perpendicular to the peripheral surfaces are considerably increased or such forces are generated. These forces result in a positive connection between the mounting part and the fastening bolt.
• the clamping body is also non-positively connected to the fastening bolt, so that it is essentially captive.
• the clamp body is connected to the mounting part via a thin material connection before being plugged on, which breaks off when the clamp body is introduced into the openings. In this way, a simple and reliable assembly of such an assembly part is possible, in which the assembly part is assembled by two targeted pressure pushes. The first push pushes the mounting part onto the fastening bolt without driving the clamp body through the opening into the interior of the fastening bolt. The clamp body is then driven in with the second thrust.
• the assembly part forms a line holder.
• the mounting part has, in particular on opposite sides of the receiving space for receiving the fastening bolt, a line clip for clipping in lines of suitable cross section.
• the line clips are preferably flexible.
• the mounting part is injection molded from plastic and preferably has a structure with a plurality transverse to the circumferential direction of the wall or the fastening bolt, i.e. in the longitudinal direction, extending elevations which are formed on an inner surface of the wall in the form of longitudinal ribs.
• the mounting part has a securing element for securing the holding connection between the line clips and a clip-in line. After the line holder has been plugged onto the fastening bolt, the securing element can be moved from a first position in which it is permitted to clip a line into a second position in which it restricts the flexibility of the line clip.
• the mounting part is a line holder with only one or more than two line clips.
• the line clips and the wall of the receiving space each delimit a space on opposite sides, the securing element in the second position at least approximately filling the space.
• the line clips have an elastic enclosure for holding a line section, each of which has a longitudinal opening for clipping in the line.
• the line clips preferably have a bridge-like elastic support element which is connected to the enclosure by a first foot in an area along a longitudinal opening and which is connected to the enclosure by a second foot in an area approximately opposite the longitudinal opening. The support element limits the space.
• the flexibility of the line clips in the second position of the securing element is restricted in that the securing element limits or prevents the supporting element from escaping and thus prevents an enlargement of the longitudinal opening which would allow a line to be clipped out.
• the configuration has in particular the advantage that the holding connection between the line clips and each possibly clipped-in line can be secured by a structurally particularly simple securing element.
• complicatedly shaped securing elements are known, which are specially adapted to the respective enclosure for holding a line section.
• the wall preferably has a first and a second bead running on the outside in the circumferential direction, the beads being in particular parallel to one another and away from one another. are formed at a different distance.
• the first bead is preferably arranged approximately at the upper end of the wall. In the first and the second position of the securing element, this encompasses the wall.
• the securing element has a first and a second groove, so that in the first position the first bead can be snapped into the second groove and so that in the second position the first bead can be snapped into the first groove and the second bead into the second groove .
• the beads are formed on the securing element and the grooves on the wall.
• the securing cap does not encompass the wall, but rather engages at least two opposite points on the outer circumference of the wall.
• the Klemmoir ⁇ er is preferably formed in one piece with the securing element.
• the clamping body When in the second position of the securing element in an upper end opening of a sleeve-like fastening bolt, the clamping body prevents radial fastening of the fastening bolt, at least in the upper region of the fastening bolt.
• the fastening bolt When the clamping body penetrates into a sleeve-shaped interior, the fastening bolt is radially spread apart while reinforcing its elastic restoring forces, so that or a ridge on the outer jacket of the fastening bolt presses into the longitudinal ribs of the receptacle.
• the securing element can also perform the function of securing the mounting connection between the mounting part and the fastening bolt.
• the attachment of the securing element is preferably reversible.
• the line holder in particular as a line holder, can be plugged onto the fastening bolt on both sides.
• the line holder is designed so that it can be optionally with one of the two opposite ones Openings of its receiving space can be plugged on the fastening bolt.
• the material connections between the wall of the receiving space and the line clips are arranged further in the middle of the axial length of the wall, so that the securing element can be plugged on from both sides of the receiving space.
• the line clips are designed so that the longitudinal openings are easily accessible regardless of the choice of the direction of attachment.
• the inner surface of the receiving space of the mounting part and the outer peripheral surface of the fastening bolt are non-positively connected to one another at least in places.
• the outer circumferential surface preferably has a structure with at least one burr-like elevation of dimensionally stable material running approximately in the circumferential direction.
• the inner surface has a structure with at least one elevation of plastically deformable material that runs approximately transversely to the circumferential direction.
• burr-like elevation and the elevation made of the plastically deformable material run transversely to one another, at least one point-like contact area arises when the mounting part is attached, so that small forces acting approximately perpendicular to the surfaces are sufficient to press the burr-like elevation into the plastically deformable material.
• the deformable material Under the high pressure, the deformable material can flow for a long time after the assembly part has been attached. Pressing in the burr-like elevation creates a locally limited positive connection, so that the assembly part is difficult to remove.
• the receiving space is designed in a channel-like manner with two openings lying opposite one another.
• This configuration enables the assembly part to be mounted on both sides of the fastening bolt.
• components of different dimensions should be attachable to a structure.
• the fastening position of the component can be selected relative to the structure .
• the head of the mounting part can, for example, optionally rest against the structure or be spaced apart from the structure.
• the mounting part can also be plugged onto the fastening bolt to different degrees.
• the fastening bolt is made of metal. It can preferably be fastened to a metallic support component by arc stud welding. For details on this z. B. referred to WO 94/037735.
• the fastening bolt has an external thread.
• the thread groove or the thread grooves is bordered by the at least one burr-like elevation. Due to the external thread, the mounting part can be removed again after being attached by unscrewing it from the fastening bolt.
• FIG. 1 is a schematic side view of a sleeve-like fastening bolt with an external thread
• FIG. 2 shows a view from above of the sleeve-like fastening bolts according to FIG. 1,
• FIG. 3 is a top view of a first embodiment of the mounting part according to the invention.
• FIG. 4 shows a side view of the mounting part according to FIG. 3 with a partial section during the mounting process on the fastening bolts according to FIGS. 1 and 2,
• FIG. 5 shows the assembly process according to FIG. 4 at a later stage
• Fig. 6 shows a second embodiment of the invention
• FIG. 7 is a side view in partial section of the mounting part of FIG. 6,
• Fig. 8 is a side view of the assembled mounting part of FIG. 6 with
• FIG. 9 is a side view of a modified mounting part according to FIG.
• FIG. 1 and 2 show a sleeve-like fastening bolt 1, in particular a welding bolt, which can be used for an assembly system according to the invention, but is also suitable for other applications.
• the welding stud 1 can optionally be welded to a structure at one of its sleeve ends. It has a structure 5 with an almost circumferential groove 2 and a ridge 7, which form an external thread. The groove 2 is bordered by flanks 3.
• the sleeve-like welding stud 1 is radially elastic due to a slot 8 which runs from top to bottom.
• the radial elasticity of the welding stud is further increased by an additional axial window 9, the axial window 9 preferably extending over at least half the axial length of the welding stud 1, having a smaller extent in the circumferential direction than in the axial direction and approximately on the side of the slot 8 opposite the slot Welding stud 1 is arranged. Two or more such axial windows can also be provided, which should then be distributed approximately evenly over the circumference together with the slot 8. Axial windows 8 are particularly advantageous if the material or the thickness of the wall of the welding stud would otherwise not permit a satisfactory radial elasticity.
• the welding stud 1 has an end sleeve opening 4 at the top and bottom.
• FIG. 3 to 5 show a line holder 20 for a mounting system 1 according to the invention; 20.
• the line holder 20 has on opposite sides of the receiving space 21 for receiving the welding stud 1 in each case a line clip 25, 26 for clipping in lines of suitable cross section.
• the line clips 25, 26 are flexible.
• the line holder 20 is injection molded from plastic and has a structure with a plurality of transverse to the circumferential direction of the wall 22 or the welding stud 1, ie in the longitudinal direction, on elevations 23, which on the inner surface 28 of the wall 22 in the form of Longitudinal ribs 23 are formed.
• the line holder 20 has a securing cap 27 for securing the holding connection between the line clips 25, 26 and a clip-in line.
• the safety cap 27 is after the cable holder 20 has been plugged onto the welding stud 1 from a first position (see FIG. 4), in which it is permitted to clip in a cable, into a second position (see FIG. 5), in which it is Flexibility of the line clip 25, 26 restricted, movable.
• the mounting part is a line holder with only one or more than two line clips 25, 26. The holding connection is found in the same way as described here.
• the line clips 25, 26 and the wall 22 of the receiving space 21 each delimit an intermediate space 24 on opposite sides, the securing cap 27 in the second position at least approximately filling the intermediate space 24.
• the line clips 25, 26 have an elastic enclosure 29, 30 for holding a line section, each of which has a longitudinal opening 31 for clipping in the line.
• the line clips 25, 26 furthermore have a bridge-like elastic support element 32, 33, which is connected to the casing 29, 30 by a first foot 34 in a region along the longitudinal opening 31 and approximately via a second foot 35 in one of the longitudinal openings 31 opposite area is connected to the enclosure 29, 30.
• the support element 32, 33 delimits the intermediate space 24.
• the flexibility of the line clip 25, 26 becomes in the second Position of the securing cap 27 is limited by the fact that the securing cap 27 limits or prevents the supporting element 32, 33 from escaping and thus prevents an enlargement of the longitudinal opening 31, which would allow a line to be clipped out.
• the design has the particular advantage that the retaining connection between the line clips 25, 26 and each possibly clipped line can be secured by a structurally particularly simple securing element.
• complicatedly shaped securing elements are known, which are specially adapted to the respective enclosure for holding a line section.
• the special design of the securing cap 27 and the wall 22 of the receiving space 21 is also advantageous.
• the wall 22 has a first 36 and a second 37 bead running on the outside in the circumferential direction, the beads 36, 37 being arranged parallel to one another and spaced apart from one another.
• the first bead 36 is preferably arranged approximately at the upper end of the wall 22. In the first and the second position of the securing cap 27, this comprises the wall 22.
• the securing cap 27 has a first 38 and a second 39 groove, so that in the first position the first bead 36 can be snapped into the second groove 39 and so that in the second position, the first bead 36 can be snapped into the first groove 38 and the second bead 37 into the second groove 39.
• the beads are formed on the securing cap and the grooves on the wall.
• the securing cap does not encompass the wall, but rather engages at least two points on the outer circumference of the wall that are opposite one another.
• a pin 14 acts as a clamp body in the second position of the tion cap 27 in the upper end sleeve opening 4 of the sleeve-like welding bolt 1 and prevents radial compression of the welding bolt 1 at least in the upper region.
• the welding bolt 1 is radially spread apart, with the reinforcement of its elastic restoring forces, so that the ridge 7 is pressed into the longitudinal ribs 23 of the line holder 20.
• the securing cap 27 thus also fulfills the function of securing the assembly connection between the line holder 20 and the welding bolt 1.
• the securing cap 27 can be attached in a reversible manner.
• the line holder 20 can be unscrewed from the welding stud 1.
• the line holder can be plugged onto the fastening bolt on both sides.
• the line holder is designed similarly to the line holder 20, so that it can optionally be plugged onto the fastening bolt with one of the two opposite openings in its receiving space.
• the material connections between the wall of the receiving space and the line clips are arranged further in the middle of the axial length of the wall, so that the securing cap can be plugged on from both sides of the receiving space.
• the line clips are designed so that the longitudinal openings are easily accessible regardless of the choice of the direction of attachment.
• the mounting part is designed as a push button 10 which can be plugged onto the welding stud 1 and is made in one piece from plastic by injection molding.
• the welding stud 1 is welded to the body panel 40. Between the mushroom-like head 16 of the push button 10 and the body panel 40, in particular flat areas can be found Materials are located, which are then held by the push button 10.
• the push button 10 has a receiving space 11 for receiving the welding stud 1.
• the inner surface 18 of the receiving space 11 is structured with a plurality of longitudinal ribs 13.
• the wall 12 of the receiving space 11 has an annular cross section.
• a pin 14 is formed which, when the push button 10 is pushed onto the welding stud 1, presses into the upper end sleeve opening 4 of the welding stud 1. As already described above, this produces or increases the radially outward-acting forces which cause the thread burr 7 to be pressed into the longitudinal ribs 13. The indentation continues for some time after the end of the push-on process, since the plastic gradually flows under the pressure of the thread burr 7.
• the head 16 has a screwdriver slot 17 so that the push button 10 can be screwed onto the welding stud 1 or unscrewed from it.
• the push button 10 has a through opening 42 which is essentially coaxial to the receiving space 11.
• a clamping body 14 is arranged above the head 16 of the mounting part 10.
• the Klemmgro ⁇ er 14 is essentially pin-shaped.
• the outer contour of the clamping body 14 essentially corresponds to the inner contour of the through-opening 42.
• the clamping body 14 is connected to the mounting part 10 via material connections 41. If the mounting part 10 is arranged on the fastening bolt 1, then a force directed in the direction of the fastening bolt 1 is then exerted on the clamping body 14, as a result of which the material connections 41 are destroyed.
• the Klemmgro ⁇ er 14 is inserted into the opening 4 of the mounting bolt 1. After the insertion process the Klemmgro ⁇ er 14 has reached its end position, as shown in FIG. 8.
• FIG. 9 An alternative embodiment of the clamping body 14 is shown in FIG. 9.
• the Klemmgro ⁇ er 14 has a head 43 which projects into a correspondingly formed recess 44 of the mushroom-like head 16.
• the receiving space is designed in a channel-like manner so that the push button can be plugged onto the fastening bolt on both sides.
• a clamp body is alternatively not available or available as a separate part.
• the mounting system according to the invention allows a mounting part to be easily attached to a mounting bolt by plugging the mounting part.
• the fact that dimensionally stable material is punctually pressed into plastically deformable material creates a reliable connection.
• the parts of the assembly system according to the invention can be produced with a slight modification of known processes. LIST OF REFERENCE NUMBERS

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Connection Of Plates (AREA)
• Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
• Insertion Pins And Rivets (AREA)

Applications Claiming Priority (9)

Publications (1)

Family

ID=27438777

Family Applications (1)

Country Status (5)

Families Citing this family (7)

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• 1998
  • 1998-04-15 BR BR9808900-5A patent/BR9808900A/pt not_active Application Discontinuation
  • 1998-04-15 US US09/402,967 patent/US6371707B1/en not_active Expired - Fee Related
  • 1998-04-15 WO PCT/EP1998/002203 patent/WO1998048182A1/de not_active Application Discontinuation
  • 1998-04-15 JP JP54496298A patent/JP2002501590A/ja active Pending
  • 1998-04-15 EP EP98922716A patent/EP0975879A1/de not_active Withdrawn

Non-Patent Citations (1)

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