WO2009097391A1 - Élément de fixation - Google Patents

Élément de fixation Download PDF

Info

Publication number
WO2009097391A1
WO2009097391A1 PCT/US2009/032362 US2009032362W WO2009097391A1 WO 2009097391 A1 WO2009097391 A1 WO 2009097391A1 US 2009032362 W US2009032362 W US 2009032362W WO 2009097391 A1 WO2009097391 A1 WO 2009097391A1
Authority
WO
WIPO (PCT)
Prior art keywords
bolt
wall
fastening element
cage
axis
Prior art date
Application number
PCT/US2009/032362
Other languages
English (en)
Inventor
Markus Jung
Frank Rosemann
Hans-Peter Seng
Michael Schmidt
Original Assignee
Newfrey Llc
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 Newfrey Llc filed Critical Newfrey Llc
Priority to EP09705163A priority Critical patent/EP2237695A1/fr
Publication of WO2009097391A1 publication Critical patent/WO2009097391A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • 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 fastening element for fastening a structural part to a bolt, having an accommodating cage which has a cage chamber extending along an axis, an insertion aperture through which the bolt is insertabie into the cage chamber in the direction of the axis, and a locking element for securing the bolt in the accommodating cage.
  • Fastening elements of the kind indicated are known in a variety of embodiments, for example from EP 1 ,400,709 B1 , EP 1 ,069,326 B 1 or US 6,240,602 B1 , and are used for fastening structural parts such as cables, pipes or the like to a bolt by simple mounting procedures and without the use of special mounting tools.
  • the known fastening elements have a rigid accommodating cage with an insertion aperture and a cage chamber for accommodation of the bolt.
  • a locking pawl Located in the accommodating cage is a locking pawl, which is flexibly connected with the inner wall of the cage and upon insertion of the bolt yields etasticaily in the direction of insertion, in order then to lock, in a position inclined to the axis of the bolt, with projections on the outside of the bolt and thereby secure the bolt against withdrawal from the cage.
  • the accommodating cage must be designed relatively targe, since in addition to the space for accommodation of the bolt, a space for the pawl must also be provided.
  • the space for the locking pawl must have a certain size in order for the pawl to be able to compensate for variations in dimension and for the mounting forces to remain small. If a releasing bar is formed on the pawl, as shown in EP 1 ,069,326 B1 , this results in a width of the cage chamber that corresponds to nearly double the bolt diameter. Disclosure of Invention
  • the object of the invention is to procure a fastening element of the kind mentioned at the beginning, which is characterized by a small space requirement in the region of the bolt.
  • a further object of the invention consists in keeping the materia! requirement for production of the fastening element small.
  • the fastening element should in addition be characterized by a favorable ratio of mounting force to holding force and should be simple and inexpensive to produce.
  • a fastening element for fastening to a bolt is provided with an accommodating cage which has a cage chamber extending along an axis, an insertion aperture through which the bolt is insertable into the cage chamber in the direction of the axis, and a locking element for securing the bolt in the accommodating cage, where the accommodating cage has at least one section elastically deformable transverse to the axis and in the direction of insertion of the bolt in such a way that deformation of the section increases the inside diameter of the cage chamber at least in the direction of engagement of the locking element.
  • the cage is not rigid, but is elasticaliy deformable in such a way that when a bolt is inserted it expands at least in the direction of engagement of the locking element and hence transverse to the longitudinal axis of the bolt, so that the locking element is able to slide over ribs or the like on the outside of the bolt and, by springing back of the cage into its original position, snap into a depression adjoining a rib or the like.
  • the locking element itself may be rigidly connected with a section of the accommodating cage and therefore be designed compact and sturdy.
  • the fastening element according to the invention has the advantage that it requires little space, since its cage can be designed lying close to the outer contour of the assigned bolt. A large cage chamber for the accommodation of a movable Socking pawl is unnecessary.
  • the design of a flexible cage also makes for a small material input and contributes to inexpensive production.
  • the deformable design of the cage in addition has the advantage that high holding forces can be achieved with comparatively low deformation forces to be overcome in mounting.
  • the elasticaliy deformable section of the accommodating cage has at least one bar-shaped spring element, the ends of which lie in two different parallel planes intersecting the axis of the cage chamber at an angle of 90°.
  • the ends of the bar-shaped spring element When forces directed to each other act on the ends of the bar-shaped spring element in the direction of the axis, one end is bent in the direction of the plane in which the other end of the bar-like spring element is situated. This results in stretching of the deformable section transverse to the axis and hence in increase in the inside diameter of the cage chamber.
  • a bolt can therefore easily penetrate the cage chamber. Forces in the reverse direction cause a reduction in size of the cage chamber and thus increase the force for clamping and securing a bolt inserted into the cage chamber.
  • the elastically deformable section of the fastening element preferably has at least two parallel bar-shaped spring elements. These spring elements may be designed as fixed bending supports or as rods fastened on the accommodating cage by bending or torsion elements.
  • the accommodating cage has a first wall and a second wail opposite the latter, where the two wails, at their lateral edges extending in the direction of the axis, are connected together by elastically deformabfe sections in such a way that the second wall is movable with respect to the first wall in the direction of insertion and in a direction increasing the distance from the first wall.
  • the locking element according to the invention may be comprised of a rib which is located on one of the walls, in particular the second wall, on which the side turned toward the respective other wall is located.
  • locking elements may alternatively be formed on both walls.
  • a holding element for holding a structural part in particular a cable, a cable tree or a pipe, is located on the first wall.
  • the first wall may have on the end opposite the insertion aperture a detent element limiting the insertion depth of the bolt.
  • the fastening element preferably is comprised of an especially hard elastic thermoplastic synthetic material and is designed so that it can be made in one piece in the injection molding process.
  • Figure 1 shows a perspective representation of a fastening element according to the invention
  • FIG 2 a view of the fastening element of Figure 1 in a mounting position fastened to a bolt.
  • the drawing shows a fastening element 1 , which is designed for fastening a cable tree to a bolt.
  • the fastening element 1 has an accommodating cage 2, which is made of a first wall 3, a second wail 4 located parallel to the latter and bar-shaped spring elements 5, 6 connecting the walls 3, 4 together.
  • the spring elements 5, 6 are arranged pairwise and substantially parallel to each other in such a way that the lateral edges of the walls 3, 4 are connected together by a spring element 5 and a spring element 6, respectively.
  • the spring elements 5 are situated at the upper end of the walls 3, 4 and are connected with them resistant to bending.
  • the spring elements 6 connect the lower end of the second wall 4 with approximately the center of the lateral edges of the first wall 3 and are connected with the walls 3, 4 by elasticaily deformable torsion elements in the manner of a joint.
  • the length of the spring elements 6 is greater than the length of the spring elements 5.
  • the spring elements 5, 6 are in each instance inclined at an angle of about 30° to the substantially pfane walls 3, 4 in such a way that they extend from the wall 3 in the direction of the wall 4 and downward.
  • the walls 3, 4 and the spring elements 5, 6 surround a cage chamber 8, which is open at a lower end 7 of the fastening element 1. At the top the cage chamber 8 is partially closed by a bow-shaped detent element 9, which is fastened on the first wall 3.
  • locking elements 10, 11 are fastened to the walls 3, 4.
  • the two locking elements 10, 11 have the shape of a straight strip with a sawtooth profile directed upward.
  • the locking element 11 located on the wall 4 has a greater width, so that it projects more deeply from the wall 4 into the cage chamber 8.
  • the underside of the locking element 11 forms a sliding surface 12, extending upward at an angSe of 45° from the wall 4, which upon mounting of the fastening element 1 cooperates with the end of a bolt 20 insertable into the cage chamber 8 and transmits the force required for expansion of the cage chamber to the wall 4.
  • the holding element 13 On its side turned away from the cage chamber 8, there is formed on the first wall 3 a holding element 13 with a concavely curved contact surface 14 and fastening arms 15 extending in opposite directions.
  • the holding element 13 serves especially for fastening of a cable tree, which rests on the contact surface 14, and by means of straps that wrap around the fastening arms 15, is fastenable to the holding element 13.
  • the holding element 13 On its underside turned away from the contact surface 14, the holding element 13 has a rib 16, by which the fastening element 1 in the mounting position can be supported on a contact surface.
  • the holding element 13 may in addition be designed elastically yielding, in order to brace the fastening element 1 elastically in the mounting position.
  • the final mounting position is reached when the rib16 rests on the structural part
  • the fastening element 1 is therefore characterized by a high holding force.
  • the fastening element 1 can nevertheless be demounted in simple fashion by, for example, using a screwdriver to move the wall 4 in the direction of release, while at the same time keeping the wail 3 in place. In this way, the walls 3, 4 move away from each other, so that the locking elements 10, 11 release the bolt 20 and the fastening element 1 can be removed from the latter.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)

Abstract

L’invention concerne un élément de fixation (1) destiné à fixer une pièce de structure à un boulon (20), ayant une cage de réception (2) qui a une chambre de cage (8) s’étendant le long d’un axe, une ouverture d’insertion au travers de laquelle le boulon (20) peut être inséré dans la chambre de cage (8) dans le sens de l’axe, et des éléments de verrouillage (3, 4) destinés à assujettir le boulon (20) dans la cage de réception (2), la cage de réception (2) ayant au moins un élément de ressort (5, 6) déformable élastiquement dans le sens transversal par rapport à l’axe et dans le sens de l’insertion du boulon (20) de sorte que sa déformation augmente le diamètre intérieur de la chambre de cage (8) au moins dans le sens de mise en prise des éléments de verrouillage (3, 4).
PCT/US2009/032362 2008-01-31 2009-01-29 Élément de fixation WO2009097391A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09705163A EP2237695A1 (fr) 2008-01-31 2009-01-29 Élément de fixation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008007135.8 2008-01-31
DE200810007135 DE102008007135A1 (de) 2008-01-31 2008-01-31 Befestigungselement

Publications (1)

Publication Number Publication Date
WO2009097391A1 true WO2009097391A1 (fr) 2009-08-06

Family

ID=40822106

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/032362 WO2009097391A1 (fr) 2008-01-31 2009-01-29 Élément de fixation

Country Status (3)

Country Link
EP (1) EP2237695A1 (fr)
DE (1) DE102008007135A1 (fr)
WO (1) WO2009097391A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3062181B1 (fr) * 2017-01-26 2020-08-28 Lisi Automotive Rapid Agrafe notamment de maintien d'objets tels que des canalisations ou cables sur une structure de support, par l'intermediaire d'un organe filete
EP3734088B1 (fr) * 2019-05-01 2023-03-22 Erico International Corporation Écrou de ressort doté d'un déclencheur

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005075841A1 (fr) * 2004-02-04 2005-08-18 Telezygology Inc Fixation temporaire pour la construction, la maintenance ou la reparation d'avions
DE102005001424A1 (de) * 2005-01-12 2006-08-10 Daimlerchrysler Ag Befestigungselement

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6240602B1 (en) 1997-09-12 2001-06-05 Hellermanntyton Corporation Dual spacing clamp tie
DE19932862A1 (de) 1999-07-14 2001-01-18 Raymond A & Cie Halteelement zur lösbaren Befestigung auf einem längsgerippten Kunststoffbolzen
JP2004108512A (ja) 2002-09-19 2004-04-08 Nippon Pop Rivets & Fasteners Ltd スタッド係止具

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005075841A1 (fr) * 2004-02-04 2005-08-18 Telezygology Inc Fixation temporaire pour la construction, la maintenance ou la reparation d'avions
DE102005001424A1 (de) * 2005-01-12 2006-08-10 Daimlerchrysler Ag Befestigungselement

Also Published As

Publication number Publication date
DE102008007135A1 (de) 2009-08-06
EP2237695A1 (fr) 2010-10-13

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