EP0710343A1 - Feuillard - Google Patents

Feuillard

Info

Publication number
EP0710343A1
EP0710343A1 EP94921614A EP94921614A EP0710343A1 EP 0710343 A1 EP0710343 A1 EP 0710343A1 EP 94921614 A EP94921614 A EP 94921614A EP 94921614 A EP94921614 A EP 94921614A EP 0710343 A1 EP0710343 A1 EP 0710343A1
Authority
EP
European Patent Office
Prior art keywords
spring
band
spring band
recesses
band body
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Withdrawn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
EP94921614A
Other languages
German (de)
English (en)
Inventor
Martin Fitz
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.)
Dipl-Ing Henn Gesmbh & Cokg
Henn GmbH and Co KG
Original Assignee
Dipl-Ing Henn Gesmbh & Cokg
Henn 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 Dipl-Ing Henn Gesmbh & Cokg, Henn GmbH and Co KG filed Critical Dipl-Ing Henn Gesmbh & Cokg
Publication of EP0710343A1 publication Critical patent/EP0710343A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D63/00—Flexible elongated elements, e.g. straps, for bundling or supporting articles
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/14—Hangers in the form of bands or chains
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/02—Hose-clips
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/02—Hose-clips
    • F16L33/08—Hose-clips in which a worm coacts with a part of the hose-encircling member that is toothed like a worm-wheel

Definitions

  • the invention relates to a spring band according to the preamble of claim 1.
  • spring bands are usually designed as flat tension bands and should have good spring properties. It is known here to make such spring bands from a plastic material, a metal material or other tensile materials, such as To train leather, textile or plastic-impregnated textile.
  • Such spring bands are used for hose clamps or tension clamps, as has become known, for example, from EP 0 203 921 B1 or DE 30 18 383 C2.
  • the spring band essentially consists of a two-part body, namely an inner spring band which can be tensioned with the aid of a turnbuckle and which rests on the outer circumference of a two-part clamp.
  • the turnbuckle When the turnbuckle is tensioned, the spring band is pulled together under the action of a tensile force and thus pulls the two-part clamp together in order to achieve a corresponding clamp connection on a pipe or hose.
  • This spring band is pulled apart in the transverse direction by its own subsequent deformation process, so that the double-T-shaped recesses overlap one another and thus overlap one another in the middle in the form of a scale. This is intended to achieve a desired spring property in the longitudinal direction of the spring band.
  • a spring action is only insufficiently achieved and that the spring band is permanently deformed when relatively high tensile forces are applied.
  • the invention is therefore based on the object of developing a spring band of the type mentioned at the outset in such a way that an excellent spring action in the longitudinal direction is achieved at a significantly lower space requirement in the radial direction at low production costs.
  • the invention is characterized by the technical teaching of claim 1.
  • the spring band consists of a series of recesses, which recesses are arranged in such a way that the spring band can expand elastically in the longitudinal direction, these recesses preferably being arranged in the form of club-shaped recesses which, due to their club shape, claimed the claimed shape Achieve spring elasticity in the longitudinal direction of the spring band.
  • the spring band consists of only one part it is simple and inexpensive to manufacture
  • the spring action is e.g. with a stainless steel strip of 14 mm width, 0.8 mm thickness and a resilient length of 150 mm at least 5.5 mm with tensile forces in the strip of approx. 700 N (this would correspond to approx. 3%)
  • the applicant used the finite element analysis, by means of which the stress distribution and the elongation of such spring bands can be calculated and displayed on the computer.
  • kidney-shaped in the outer region of this cruciform inner recess Internal recesses are present, which consist of double lobes, which lobes are separated from one another by corresponding constrictions.
  • kidney-shaped or double-lobe-shaped inner recesses is inclined at an angle to the horizontal in order to achieve an optimal tension distribution in the spring band.
  • the specially designed contour and the punched-out sections in the clamp band ensure that even with high tensile forces, a uniform stress distribution occurs across the entire band cross-section and the spring properties of the material are thus optimally utilized.
  • the dimensionally very small punched-out areas prevent the material to be penetrated in the case of soft chip material (Protection of the surface and minimization of friction), and a very even surface load on the chip is guaranteed.
  • the outer edges can also be rounded off in the punching direction in order to prevent the cutting or notching effect of the outer edges of the strip on the material to be tensioned (e.g. a hose).
  • connection By means of a connection, fastening or locking mechanism (e.g. worm screw, tensioning lever ”) the tension band is tensioned around the material to be tensioned, for example, until the necessary tension force is reached in the band.
  • the spring is tensioned (e.g. 5.5 mm travel with 700 N tractive force).
  • any type of connection such as Tightening, clamping, welding and. Like. m. in question.
  • this band When used as a tensioning element, this band is able to bridge manufacturing tolerances of the material to be tensioned (eg different hose diameters). Furthermore, temperature-related expansions or shrinkages of the goods can be compensated for by this spring action. If, for example, the material to be clamped ages here (eg a "creeping away" of the elastomer material under the clamping band) or the like occur, the spring action of the belt can compensate for this to a high degree without any problems.
  • a hose fastening clamp is proposed as a possible application example.
  • hose clamps can be produced which have a fantastic spring action without additional parts and therefore without additional costs. This means that with hose connections that are exposed to strong temperature, pressure and vibration loads and fluctuations, guaranteed tightness over the entire service life can be guaranteed without the need for maintenance and manual re-tensioning. Depending on the locking mechanism, this spring action can also compensate for manufacturing-related tolerance deviations and thus reduce the error and reject rate in the user's production.
  • the special shape prevents damage to the hose and the elasticity of the spring compensates for the temperature-related stretching and shrinking of the rubber.
  • a fastening and suspension element is proposed as a further exemplary embodiment.
  • This drawstring could be a stable yet vibration-isolating or damping suspension of ceilings, beams or the like can be created, which can be produced at almost the same cost as the perforated sheet metal strips or threaded rods currently used.
  • Figure l top view of a spring band in a first embodiment of the invention
  • FIG. 2 the spring band according to FIG. 1 in its design as a pipe clamp
  • FIG. 3 the spring band according to FIG. 1 in its design as a suspension element
  • FIG. 4 section through a spring band according to FIG. 1 when used as a hose clamp
  • FIG. 5 strain-tension diagram of a spring band according to FIG. 1,
  • FIG. 6 enlarged plan view of a spring band according to FIG. 1,
  • FIG. 7 a further embodiment of a spring band
  • FIG. 8 a third embodiment of a spring band
  • FIG. 9 a further embodiment of a spring band
  • Figure 10 another embodiment of a spring band.
  • the spring band according to FIGS. 1 to 4 essentially consists of a band body 2 made of a tensile material, such as a metal material, a light metal material, any metal alloys, plastic-coated textile, paper, cardboard, leather and the like materials.
  • a tensile material such as a metal material, a light metal material, any metal alloys, plastic-coated textile, paper, cardboard, leather and the like materials.
  • the spring band is made of a metal material.
  • the spring band 1 according to the drawings of FIGS. 1-4 consists of a flat band body 2 which has a thickness that only corresponds to the material thickness of the band body 2.
  • a series of recesses 3-5 are arranged in the band body 2, with lobe-shaped edge recesses 3 being provided in accordance with FIGS. 1-3 and 6-9, the lobes of which are open towards the edge and are exactly mirror-symmetrical to the transverse axis 19 of the band body 2.
  • the term "lobe” also means for the other recesses that there is an arched inner area which merges into a neighboring area via a narrowing.
  • cruciform inner recesses 4 are provided in the inner region of the band body, which can also be described as club-shaped arms 30, 31 (see FIG. 6).
  • kidney-shaped or double-lobe-shaped inner recesses 5 are arranged symmetrically to the longitudinal center axis 18 in the edge region of the band body 2, the longitudinal axis 33 (FIGS. 6, 8 and 9) of which is directed obliquely at an angle 34 to the horizontal.
  • FIG. 2 shows the design of the spring band 1 as a pipe clamp 8, the spring band being integrally connected in a manner known per se to band regions not having the recesses 3-5, a tension lock 9 being arranged on one band region and being associated with an associated one Teeth 10 cooperates in the other band area.
  • the spring band 1 is shown as a suspension element, which carries a pipe clamp 11, which is thus suspended on the spring band 1 in a resilient and vibration-damped manner.
  • FIG. 4 shows that the edge areas of the spring band 1 preferably form an angle 14 to the horizontal in order to prevent these edge areas from cutting into a rubber-elastic material of a tubular rubber 12 when the spring band 1 is now used as a pipe clamp 8 creates a tubular rubber 12 and thereby forms a recess 13.
  • FIG. 5 shows a spring characteristic of a spring band 1, the elongation in mm being shown on the ordinate and the tensioning forces in N being shown on the abscissa.
  • the upper curve shows the elongation 15 and means the total elongation which this spring band 1 experiences under the specified force.
  • the curve 17 shows the suspension, which is defined as the difference between the elongation 15 and a deformation residue 16. If the tension is removed, the curve 16 remains as a deformation residue, and the difference between these two curves 15 and 16 represents the pure suspension 17 of this spring band.
  • FIG. 6 shows a preferred embodiment of a spring band.
  • the cruciform inner recess 4 consists of a total of mirror
  • lobes 30, 31 arranged symmetrically to the longitudinal and transverse axes 18, 19, the lobes being directed outwards in each case and having inner curvatures 24 which taper inwards in the direction of a constriction 37 and then into the center of the cross shape of the inner recess 4 pass.
  • the kidney-shaped inner recesses 5 are designed as double lobes and have two lobes 32, 35 which are separated from one another by a respective constriction 27.
  • the longitudinal axis 33 of the lobes 32, 35 is oriented at an angle 34 obliquely to the horizontal, so that these double lobes 32, 35 are fitted obliquely symmetrically in the edge regions left free by the cruciform inner recess 4.
  • arms 20, 21 are formed in the material of the band body 2, which have the described spring properties. Areas 22, 29 are formed in the intermediate space between the arms 20, 21, which force transfer into the arms 20, 21.
  • the arched or wedge-shaped outer curvature 23 reinforces the area 29 in order to ensure that force is applied to the arms 20, 21.
  • the outer curvatures 25 arranged on the arms 21 are designed such that they correspond approximately to the inner curvatures 26, so that an arm cross section 21 with a relatively constant thickness results. Otherwise, it is characteristic of the present embodiment that, starting from the bearing point, namely the area 22, the arms taper and narrow in the direction of the inner curvatures 26, 28.
  • FIG. 7 shows a spring band 1, the cruciform inner recesses 4 of which also have the constrictions 27, but the inner recesses 5 of which are rectangular.
  • the outer curvatures 23 are missing in the cross region of the cruciform inner recesses 4. The force is then applied equally to the arms 20 and 21.
  • FIG. 8 shows an embodiment of the spring band 1 in which the cruciform inner recesses 4 also have no constrictions.
  • the longitudinal axes 33 of the rectangular inner recesses 5 are inclined at an angle 34 to the longitudinal axis 18 of the spring band 1.
  • the outer curvatures 23 correspond to those in FIG. 6.
  • FIG. 10 Another embodiment of the spring band 1 is characterized in that there are club-shaped edge recesses 3 both in the cross region of the inner recesses 4 and in the web region 36.
  • FIG. 9 in which this further development of the spring band 1 according to FIG 6, in particular the cruciform inner recesses 4 are redesigned in such a way that approximately the same material widths are realized between the kidney-shaped inner recesses 5 and the edge recesses 3 including the transverse webs 36.
  • the exemplary embodiment in FIG. 10 contains only cruciform inner recesses 4 and extended edge recesses 3. The enlarged ones
  • Edge recesses were obtained by removing the arms 21 in FIG. 6.
  • the edge recesses 3 are thereby given the shape of a rectangle open on one side with constricted sides 39.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)

Abstract

L'invention concerne un feuillard (1). Des cavités (3-5) symétriques pratiquées à l'intérieur et en bordure d'un corps plat (2) élastique monobloc étiré en longueur permettent une répartition homogène de la tension dans le matériau qui l'entoure, en cas d'extension élastique du corps plat (2) dans le sens longitudinal (6, 7).
EP94921614A 1993-07-17 1994-06-18 Feuillard Withdrawn EP0710343A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4324055 1993-07-17
DE19934324055 DE4324055A1 (de) 1993-07-17 1993-07-17 Federband
PCT/EP1994/001989 WO1995002780A1 (fr) 1993-07-17 1994-06-18 Feuillard

Publications (1)

Publication Number Publication Date
EP0710343A1 true EP0710343A1 (fr) 1996-05-08

Family

ID=6493100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94921614A Withdrawn EP0710343A1 (fr) 1993-07-17 1994-06-18 Feuillard

Country Status (4)

Country Link
EP (1) EP0710343A1 (fr)
AU (1) AU1240195A (fr)
DE (1) DE4324055A1 (fr)
WO (1) WO1995002780A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19520406A1 (de) * 1995-06-09 1996-12-12 Henn Gmbh & Co Kg Elastisches Spannband
DE102008060542B3 (de) * 2008-12-04 2010-06-17 Aktiebolaget Skf Felge eines Fahrzeugs
DE102016112531A1 (de) * 2016-07-07 2018-01-11 Norma Germany Gmbh Schlauchschelle
DE102017107727A1 (de) 2017-04-10 2018-10-11 Norma Germany Gmbh Schlauchschelle

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE536600A (fr) *
DK122411B (da) * 1965-12-15 1972-02-28 B Bom Bånd af hovedsagelig uelastisk plademateriale, navnlig til ophængning af rør og kabler.
GB1194248A (en) * 1967-06-09 1970-06-10 Franz Griebler Fastening-Tape for Conduit-Pipes.
DE2658358C3 (de) * 1976-12-23 1979-11-29 Volkswagenwerk Ag, 3180 Wolfsburg Schallisolierende Aufhängung für eine Leitung, insbesondere eine Abgasleitung
FR2487927B1 (fr) * 1980-08-04 1986-11-07 Tridon Serflex Sa Collier de serrage de tuyau en caoutchouc ou analogue
US4402113A (en) * 1981-12-30 1983-09-06 Communications Technology Corporation Flexible clamp for hose, cable and the like
SE443435B (sv) * 1984-01-30 1986-02-24 Allmaenna Brandredskapsaffaere Anordning vid slangklemmor
US5437081A (en) * 1984-06-20 1995-08-01 Hans Oetiker Ag Maschinen-Und Apparate-Fabrik Hose clamp
US4919403A (en) * 1986-10-07 1990-04-24 Proprietary Technology, Inc. Serpentine strip spring
DE3643698C1 (en) * 1986-12-20 1988-07-07 Audi Ag Vibration-insulating suspension for a pipe through which a hot medium flows
US4910832A (en) * 1988-01-29 1990-03-27 Parker Hannifin Corporation Spring band clamp
DE8903806U1 (de) * 1989-03-28 1989-05-18 Paul Hellermann Gmbh, 2080 Pinneberg Vorrichtung zum Binden von langgestreckten Gegenständen wie Kabeln

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9502780A1 *

Also Published As

Publication number Publication date
AU1240195A (en) 1995-02-13
WO1995002780A1 (fr) 1995-01-26
DE4324055A1 (de) 1995-01-19

Similar Documents

Publication Publication Date Title
AT394896B (de) Rohrkupplung
DE4000086C2 (de) Drehfeder und Aneurysmaklammer mit einer Drehfeder
DE3628448C2 (de) Verstärkender Träger für Zier- und Dichtstreifen
DE4029842C2 (de) Klemmband und daraus hergestellte Klemme
AT398460B (de) Offene klemmenanordnung
DE1291561B (de) Befestigungselement
DE2429353B2 (de) Keilverankerung fuer seilartige spannglieder von betonbauteilen
DE1282283B (de) Biegsame Besatzleiste fuer eine Tuer od. dgl. zum Einfassen von Kanten bzw. zum Abdichten von Spalten
DE3020447A1 (de) Verfahren zum herstellen einer u-profil-zierleiste
CH649354A5 (de) Kette fuer ein umschlingungsgetriebe mit konischen scheiben.
DE7320172U (de) Blattfeder mit mindestens einem Federblatt
CH677010A5 (fr)
EP0596219B1 (fr) Procédé de jonction d'éxtremités de convoies transporteurs et élément de jonction correspondant
DE2135233A1 (de) Verfahren und Vorrichtungen zur Her stellung von Streckmetallerzeugnissen
WO1995002780A1 (fr) Feuillard
EP0525481B1 (fr) Dispositif de maintien pour des tuyaux, en particulier pour tel dans des centrales
DE9116436U1 (de) Konstruktion aus Profilstäben und Binderprofilen
WO2019154500A1 (fr) Ensemble de profilés à éléments de liaison spéciaux
EP2177807A2 (fr) Collier en bande
EP0337066B1 (fr) Patte d'ancrage
DE2709786C2 (de) Fensterrahmen, Türrahmen o.dgl. mit einem bezüglich des Wärmedurchgangs isolierenden Verbindungselement und Werkzeug zur Herstellung des Fensterrahmens o.dgl
DE3127758C2 (de) Vorrichtung zur Verbindung von mit Flanschen versehenen Kunststoffrohren
DE2619179A1 (de) Bandschelle mit einem loesbaren spannkopf
DE69823678T2 (de) Federelement
DE19520406A1 (de) Elastisches Spannband

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19960210

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 19970502

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19970913