DE2813819A1 - Spiral compression spring resistant to vibrations etc. - comprises elastic wire coated with resilient plastics pref. polyurethane - Google Patents

Spiral compression spring resistant to vibrations etc. - comprises elastic wire coated with resilient plastics pref. polyurethane

Info

Publication number
DE2813819A1
DE2813819A1 DE19782813819 DE2813819A DE2813819A1 DE 2813819 A1 DE2813819 A1 DE 2813819A1 DE 19782813819 DE19782813819 DE 19782813819 DE 2813819 A DE2813819 A DE 2813819A DE 2813819 A1 DE2813819 A1 DE 2813819A1
Authority
DE
Germany
Prior art keywords
polyurethane
pref
spring
compression spring
coating
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.)
Ceased
Application number
DE19782813819
Other languages
German (de)
Inventor
Helmut Grandjot
Dietrich Dipl Ing Hoffmann
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE7809523U priority Critical patent/DE7809523U1/en
Priority to DE19782813819 priority patent/DE2813819A1/en
Publication of DE2813819A1 publication Critical patent/DE2813819A1/en
Ceased 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/024—Covers or coatings therefor

Landscapes

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

Abstract

The end windings of the wire are bare and the coating may be a plastics tube slipped onto the wire. In varients, the coating may be injection-moulded onto the spiral or applied by immersion-coating. The spring does not tend to 'block' under heavy load nor is it prone to generation of inherent vibrations that may lead to break. Whilst a polyurethane coating is pref., other elastic plastics may be used provided that their compressive strength and resistance to wear and tear are sufficient.

Description

Schraubenfeder Coil spring

Die Erfindung bezieht sich auf eine hochbeanspruchte Schraubenfeder (Druckfeder).The invention relates to a highly stressed helical spring (Compression spring).

Hochbeanspruchte, insbesondere hochbeschleunigte Schraubenfedern neigen zu Brüchen im Federdraht. Bei großen Beschleunigungen kommen die Federwindungen zur Anlage (Blockbildung), und es entstehen Eigenschwingungen des Federdrahtes, die zum Bruch führen können. Außerdem wird dabei meist die Innenfläche der Zylinderführung der Feder beschädigt.Highly stressed, especially highly accelerated coil springs tend to breaks in the spring wire. The spring coils come at high accelerations to the plant (block formation), and natural oscillations of the spring wire arise, which can lead to breakage. In addition, it is mostly the inner surface of the cylinder guide the spring damaged.

Aufgabe der Erfindung ist es, die Feder so auszubilden, daß sie auch großen Beschleunigungen standhalten kann. Diese Aufgabe wird erfindungsgemäß durch das im Kennzeichen des Hauptanspruchs enthaltene Merkmal gelöst.The object of the invention is to design the spring so that it also can withstand great accelerations. According to the invention, this object is achieved by solved the feature contained in the characterizing part of the main claim.

Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung.The drawing shows an embodiment of the invention.

Der Federdraht 1 der Schraubenfeder ist zum Teil mit einer Kunststoffummantelung 2 versehen.The spring wire 1 of the helical spring is partially covered with a plastic coating 2 provided.

Als Kunststoff kann z.B. Polyurethan (PUR) verwendet werden.Polyurethane (PUR), for example, can be used as plastic.

Es können jedoch auch andere elastische Kunststoffe eingesetzt werden, deren Druck- und Verschleißfestigkeit ausreichend hoch ist.However, other elastic plastics can also be used, whose resistance to pressure and wear is sufficiently high.

Die Endwindungen der Feder sind nicht ummantelt, damit eine möglichst genaue Parallellage bei vollständigem Auflageumfang möglich ist.The end turns of the spring are not sheathed, so one as possible exact parallel position is possible with the entire circumference of the support.

Die Wandstärke der Ummantelung ist auf den verwendeten Kunststoff und die Drahtstärke der Feder abgestimmt. Sie kann z.B.The wall thickness of the jacket depends on the plastic used and the wire size of the spring matched. You can e.g.

den halben Federdrahtdurchmesser betragen.be half the spring wire diameter.

Die Ummantelung kann bei der Federherstellung auf verschiedene Weise erfolgen. So kann z.B. der Federdraht mit einem aufgeschobenen Kunststoffschlauch versehen werden. Es ist aber auch möglich, die Ummantelung durch Tauchen oder durch Spritzen herzustellen.The sheathing can be used in various ways during the spring manufacture take place. For example, the spring wire can be fitted with a plastic tube be provided. But it is also possible to dip the sheathing or by Manufacture syringes.

Der Kunststoffüberzug dämpft die Eigenschwingungen der Feder.The plastic coating dampens the natural vibrations of the spring.

Bei Blockbeanspruchung wird die Schwingungsanregung erheblich vermindert. Hierdurch wird die Wahrscheinlichkeit von Federbrüchen stark herabgesetzt.When the block is loaded, the excitation of vibrations is considerably reduced. This greatly reduces the likelihood of spring breakage.

LeerseiteBlank page

Claims (1)

Patentansprüche 1. Hochbeanspruchte Schraubenfeder (Druckfeder), dadurch gekennzeichnet, daß der Federdraht (1) mit einer elastischen Ummantelung (2) aus Kunststoff überzogen ist.-2. Schraubenfeder nach Anspruch 1, dadurch gekennzeichnet, daß die Endwindungen von der Kunststoffummantelung freigehalten sind. Claims 1. Highly stressed helical spring (compression spring), characterized in that the spring wire (1) has an elastic sheath (2) is coated with plastic. -2. Helical spring according to claim 1, characterized in that that the end turns are kept free from the plastic coating. 3. Schraubenfeder nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Ummantelung aus einem aufgeschobenen Kunststoffschlauch besteht. 3. helical spring according to claim 1 and 2, characterized in that that the jacket consists of a pushed-on plastic tube. 4. Schraubenfeder nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Ummantelung aufgespritzt ist. 4. helical spring according to claim 1 and 2, characterized in that that the jacket is sprayed on. 5. Schraubenfeder nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Ummantelung durch Tauchen aufgebracht ist. 5. helical spring according to claim 1 and 2, characterized in that that the sheath is applied by dipping. 6. Schraubenfeder nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß als Kunststoff Polyurethan verwendet ist. 6. helical spring according to claim 1 to 5, characterized in that that polyurethane is used as the plastic.
DE19782813819 1978-03-31 1978-03-31 Spiral compression spring resistant to vibrations etc. - comprises elastic wire coated with resilient plastics pref. polyurethane Ceased DE2813819A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE7809523U DE7809523U1 (en) 1978-03-31 1978-03-31 COIL SPRING
DE19782813819 DE2813819A1 (en) 1978-03-31 1978-03-31 Spiral compression spring resistant to vibrations etc. - comprises elastic wire coated with resilient plastics pref. polyurethane

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7809523U DE7809523U1 (en) 1978-03-31 1978-03-31 COIL SPRING
DE19782813819 DE2813819A1 (en) 1978-03-31 1978-03-31 Spiral compression spring resistant to vibrations etc. - comprises elastic wire coated with resilient plastics pref. polyurethane

Publications (1)

Publication Number Publication Date
DE2813819A1 true DE2813819A1 (en) 1979-10-04

Family

ID=25774165

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19782813819 Ceased DE2813819A1 (en) 1978-03-31 1978-03-31 Spiral compression spring resistant to vibrations etc. - comprises elastic wire coated with resilient plastics pref. polyurethane
DE7809523U Expired DE7809523U1 (en) 1978-03-31 1978-03-31 COIL SPRING

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE7809523U Expired DE7809523U1 (en) 1978-03-31 1978-03-31 COIL SPRING

Country Status (1)

Country Link
DE (2) DE2813819A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3737104A1 (en) * 1987-11-02 1989-05-11 Altenkirchener Kunststoff HOSE PIECE OF ELASTIC, EASILY RESETTABLE PLASTIC AND METHOD FOR THE PRODUCTION THEREOF
US4886256A (en) * 1980-08-05 1989-12-12 Nhk Spring Co., Ltd. Vehicle suspension device with a coil spring embedded in an open cell foam
US5310167A (en) * 1992-09-14 1994-05-10 Hoesch Suspensions, Inc. Method and apparatus for providing a flexible covering for a portion of a tapered coil spring
DE10127733A1 (en) * 2001-06-07 2003-02-06 Silicium Energiesysteme E K Dr Spring elements in form of screw or spiral springs used in semiconductor technology in production of weighing systems, pressure switches or sensors are made from mono-crystalline silicon
US7845578B2 (en) 2006-02-21 2010-12-07 Pandrol Limited Railway rail fastening clip
DE102009053092A1 (en) 2009-11-13 2011-05-19 Audi Ag Stone chip protection unit for spring element, has protective hose encasing spring element, where protective hose is made of shock-absorbing and elastic material
RU2645587C1 (en) * 2016-08-29 2018-02-21 Олег Савельевич Кочетов Kochetov spring vibration insolator with damper
RU2648499C1 (en) * 2017-01-18 2018-03-26 Олег Савельевич Кочетов Disk resilient element with buffer element
RU2650332C2 (en) * 2016-08-29 2018-04-11 Олег Савельевич Кочетов Spring vibration isolator with mesh damper
RU2650279C2 (en) * 2016-08-29 2018-04-11 Олег Савельевич Кочетов Kochetov's spring vibration isolator with mesh damper
RU2650281C2 (en) * 2014-04-09 2018-04-11 Олег Савельевич Кочетов Kochetov amphibian transport craft for evacuation of victims of the regional scale emergency situations
RU2661038C1 (en) * 2017-01-18 2018-07-11 Олег Савельевич Кочетов Dry friction damper

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2824355A1 (en) * 2013-07-09 2015-01-14 Kone Corporation Coated springs used as special solution for avoiding resonances

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4886256A (en) * 1980-08-05 1989-12-12 Nhk Spring Co., Ltd. Vehicle suspension device with a coil spring embedded in an open cell foam
DE3737104A1 (en) * 1987-11-02 1989-05-11 Altenkirchener Kunststoff HOSE PIECE OF ELASTIC, EASILY RESETTABLE PLASTIC AND METHOD FOR THE PRODUCTION THEREOF
US5310167A (en) * 1992-09-14 1994-05-10 Hoesch Suspensions, Inc. Method and apparatus for providing a flexible covering for a portion of a tapered coil spring
US5548898A (en) * 1992-09-14 1996-08-27 Hoesch Suspensions, Inc. Method for providing a flexible covering for a portion of a tapered coil spring
DE10127733A1 (en) * 2001-06-07 2003-02-06 Silicium Energiesysteme E K Dr Spring elements in form of screw or spiral springs used in semiconductor technology in production of weighing systems, pressure switches or sensors are made from mono-crystalline silicon
DE10127733B4 (en) * 2001-06-07 2005-12-08 Silicium Energiesysteme E.K. Dr. Nikolaus Holm Screw or spiral spring elements of crystalline, in particular monocrystalline silicon
US7954727B2 (en) 2006-02-21 2011-06-07 Pandrol Limited Anchoring devices for rail fastening clips
US7845578B2 (en) 2006-02-21 2010-12-07 Pandrol Limited Railway rail fastening clip
US8146835B2 (en) 2006-02-21 2012-04-03 Pandrol Limited Sealing plate for railway rail clip anchoring device and sleeper manufacturing method
DE102009053092A1 (en) 2009-11-13 2011-05-19 Audi Ag Stone chip protection unit for spring element, has protective hose encasing spring element, where protective hose is made of shock-absorbing and elastic material
RU2650281C2 (en) * 2014-04-09 2018-04-11 Олег Савельевич Кочетов Kochetov amphibian transport craft for evacuation of victims of the regional scale emergency situations
RU2645587C1 (en) * 2016-08-29 2018-02-21 Олег Савельевич Кочетов Kochetov spring vibration insolator with damper
RU2650332C2 (en) * 2016-08-29 2018-04-11 Олег Савельевич Кочетов Spring vibration isolator with mesh damper
RU2650279C2 (en) * 2016-08-29 2018-04-11 Олег Савельевич Кочетов Kochetov's spring vibration isolator with mesh damper
RU2648499C1 (en) * 2017-01-18 2018-03-26 Олег Савельевич Кочетов Disk resilient element with buffer element
RU2661038C1 (en) * 2017-01-18 2018-07-11 Олег Савельевич Кочетов Dry friction damper

Also Published As

Publication number Publication date
DE7809523U1 (en) 1982-07-15

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