DE2531704A1 - Multi-wire coil spring with helical cover coil - has core wire axially fixed to prevent dislocation - Google Patents

Multi-wire coil spring with helical cover coil - has core wire axially fixed to prevent dislocation

Info

Publication number
DE2531704A1
DE2531704A1 DE19752531704 DE2531704A DE2531704A1 DE 2531704 A1 DE2531704 A1 DE 2531704A1 DE 19752531704 DE19752531704 DE 19752531704 DE 2531704 A DE2531704 A DE 2531704A DE 2531704 A1 DE2531704 A1 DE 2531704A1
Authority
DE
Germany
Prior art keywords
wire
core
spring
core wire
coil spring
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.)
Pending
Application number
DE19752531704
Other languages
German (de)
Inventor
Werner Dr Roehrs
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.)
ROEHRS WERNER DR KG
Original Assignee
ROEHRS WERNER DR 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 ROEHRS WERNER DR KG filed Critical ROEHRS WERNER DR KG
Priority to DE19752531704 priority Critical patent/DE2531704A1/en
Publication of DE2531704A1 publication Critical patent/DE2531704A1/en
Pending 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
    • F16F1/04—Wound springs

Landscapes

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

Abstract

A coil spring which is made from several wire strands, has a core wire that is enclosed by helical wire strands. Since there is the tendency for relative axial movement between the core wire and the helical strands when the spring is flexing, the protruding ends of the core are bent to form a hook. The core hooks are such that they do not increase the space requirement of the multi-wire coil spring. By fixing the core and the outside layer of the spring relative to each other, it is also ensured that the spring characteristic does not change.

Description

Beschreibung mit Patentanspruch zur Patent- und Gebrauchsmusterhilfsanmeldung vom 14.7.1975, der Firma Dr. Werner Röhrs KG, 8972 Sonthofen, betreffend: "Mehrdrahtfedern (Litzenfedern)" Die Erfindung betrifft Mehrdrahtfedern, insbesondere hochbeschleunigte Litzenfedern mit Kerndraht und einer umschließenden Lage verseilter oder umwickelter Drähte als auch mehrlagige Litzenfedern, wie sie insbesondere im Maschinenwaffenbau Anwendung finden.Description with claim for patent and utility model auxiliary application dated July 14, 1975, the company Dr. Werner Röhrs KG, 8972 Sonthofen, regarding: "Multi-wire springs (Litzfedern) "The invention relates to multi-wire springs, especially highly accelerated Litz springs with core wire and an enclosing layer of stranded or wrapped one Wires as well as multi-layer stranded springs, such as those used in machine gun construction in particular Find application.

Derartige Mehrdrahtfedern haben eine erheblich längere Lebensdauer als Eindrahtfedern oder verdrillte Mehrdrahtfedern aus verdrillter Dreidrahtlitze. (Deutsche Patentschrift 767 478 und 2 115 314).Such multi-wire springs have a considerably longer service life as single-wire springs or twisted multi-wire springs made of twisted three-wire strand. (German patent specification 767 478 and 2 115 314).

Sind solche Mehrdrahtfedern aus einer Litze mit Kerndraht und einer oder mehreren Lagen von verseilten oder umwickelten Federdrähten hergestellt, so wandert der Kerndraht bzw. die innenliegenden Litzenlagen während der dynamischen Beanspruchung der Mehrdrahtfeder oft aus mehreren Windungen der Mehrdrahtfeder heraus und ändert somit das Federdiagramm bzw. führt zu Funktionsstörungen der Feder.Are such multi-wire springs made of a strand with a core wire and a or several layers of stranded or wrapped spring wires, see above the core wire or the inner strand layers migrate during the dynamic Stress on the multi-wire spring often from several turns of the multi-wire spring and thus changes the spring diagram or leads to malfunctions of the spring.

Der Erfindung liegt die Aufgabe zugrunde, das Wandern des Kerndrahtes und der innenliegenden Litzendrähte von Mehrdrahtfedern bei dynamischer Beanspruchung zu verhindern.The invention is based on the problem of the wandering of the core wire and the internal stranded wires of multi-wire springs under dynamic stress to prevent.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Kenrdraht der Litzenfeder an beiden Enden der Litzenfeder etwas länger gehalten und dort, wo er aus der Litze heraustritt, beidseits zu einem Haken umgebogen wird. Beide Kerndrahthaken werden vorteilhaft so kurz gehalten, daß sie keinen größeren Raum beanspruchen als die Litze der Mehrdrahtfeder selbst.This object is achieved according to the invention in that the key wire the stranded spring held a little longer at both ends of the stranded spring and there, where it emerges from the braid, is bent into a hook on both sides. Both Core wire hooks are advantageously kept so short that they do not have a large space stress than the strand of the multi-wire spring itself.

Claims (1)

Patentanspruch:Claim: Mehrdrahtfedern (Litzenfedern) mit Kerndraht und einer umschliessenden Lage verseilter oder umwickelter Drähte als auch mit übereinanderliegenden Lagen von Litzendrähten, dadurch gekennzeichnet, daß der Kerndraht an beiden Federenden vorsteht und zu einem Haken umgebogen ist.Multi-wire springs (stranded wire springs) with core wire and an enclosing one Layer of stranded or wrapped wires as well as layers on top of each other of stranded wires, characterized in that the core wire at both spring ends protrudes and is bent into a hook.
DE19752531704 1975-07-16 1975-07-16 Multi-wire coil spring with helical cover coil - has core wire axially fixed to prevent dislocation Pending DE2531704A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752531704 DE2531704A1 (en) 1975-07-16 1975-07-16 Multi-wire coil spring with helical cover coil - has core wire axially fixed to prevent dislocation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752531704 DE2531704A1 (en) 1975-07-16 1975-07-16 Multi-wire coil spring with helical cover coil - has core wire axially fixed to prevent dislocation

Publications (1)

Publication Number Publication Date
DE2531704A1 true DE2531704A1 (en) 1977-02-03

Family

ID=5951613

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752531704 Pending DE2531704A1 (en) 1975-07-16 1975-07-16 Multi-wire coil spring with helical cover coil - has core wire axially fixed to prevent dislocation

Country Status (1)

Country Link
DE (1) DE2531704A1 (en)

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