DE389200C - Leaf spring - Google Patents

Leaf spring

Info

Publication number
DE389200C
DE389200C DEE28549D DEE0028549D DE389200C DE 389200 C DE389200 C DE 389200C DE E28549 D DEE28549 D DE E28549D DE E0028549 D DEE0028549 D DE E0028549D DE 389200 C DE389200 C DE 389200C
Authority
DE
Germany
Prior art keywords
spring
leaf spring
cross
section
leaves
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.)
Expired
Application number
DEE28549D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
Publication date
Priority to DEE28549D priority Critical patent/DE389200C/en
Application granted granted Critical
Publication of DE389200C publication Critical patent/DE389200C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/02Springs 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
    • F16F1/18Leaf springs
    • F16F1/185Leaf springs characterised by shape or design of individual leaves

Landscapes

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

Description

Blattfeder. Es sind zahlreiche Wege eingeschlagen worden, um zu einer Blattfeder zu kommen, die bei gleichem Gewicht, gleicher Größe und gleicher Federwirkung eine wesentliche Vermehrung ihrer Querfestigkeit (Querdehnung) aufweist, d. h. es soll erreicht werden, daß die einzelnen Federblätter sich gegenseitig nicht verschieben können, wie dies bei der einfachen Blattfeder der Fall ist. Die bisher zur Erreichung dieses Zieles angegebenen Mittel (Nuten, Nocken, Gabeln, durchgehende Bolzen, Sicken, Rillen usw.) sind entweder unzureichend oder schwächen den Querschnitt jedes einzelnen Blattes so bedeutend, daß die Feder zu schwach und einer Bruchgefahr ausgesetzt wird oder zu steif wird, indem die notwendige Verschiebung der Einzelblätter aneinander längs der Feder gehemmt ist. Endlich sind die verschiedenartigsten Profile vorgeschlagen worden, die ein Ineinandergreifen der einzelnen Federblätter in der Längsrichtung ermöglichen. Besonders diese letzteren Ausführungsformen leiden fast durchweg an dem Fehler, daß ein auf die Biegungslinie bezogener Querschnitt unsymmetrisch ist, d. h. Zug- und Druckfasern sind verschieden- groß und daher verschieden stark belastet, was zu Überbeanspruchungen eines der Teile schon bei normaler Last und normaler Federung führt. Auch Ausführungsformen, die diesem Falle Rechnung tragen, sind bekannt. U. a. wird ein [)-Profil vorgeschlagen, das an den sehr kurzen Stegen beiderseits Flansche trägt, deren Querschnitt des Grundes ein [J ist. Aber auch hier` werden die Biegekanten (Stege) in ungünstiger Weise beansprucht; die Übergänge sind hart und geben Anlaß zu Ermüdungserscheinungen an den Profilkanten.Leaf spring. Numerous routes have been taken to achieve one Leaf spring to come with the same weight, same size and same spring effect has a significant increase in its transverse strength (transverse elongation), d. H. it should be achieved that the individual spring leaves do not move each other can, as is the case with the simple leaf spring. The so far to achieve means specified for this purpose (grooves, cams, forks, through bolts, beads, Grooves, etc.) are either insufficient or weaken the cross-section of each one The leaf is so important that the spring is too weak and exposed to the risk of breakage becomes or becomes too stiff by the necessary displacement of the individual sheets against each other is restrained along the spring. Finally the most varied of profiles are proposed been that an interlocking of the individual spring leaves in the longitudinal direction enable. These latter embodiments in particular suffer almost consistently the error that a cross-section related to the bending line is asymmetrical, d. H. Tension and compression fibers are of different sizes and are therefore subjected to different levels of stress, resulting in overstressing of one of the parts even with normal load and normal Suspension leads. Embodiments that take this case into account are also known. I.a. a [) profile is proposed, which is attached to the very short webs on both sides Carries flanges whose cross-section of the base is a [J. But also here 'will be the bending edges (webs) stressed in an unfavorable manner; the transitions are hard and give rise to signs of fatigue on the profile edges.

Gemäß der Erfindung wird den Federblättern ein wellblechförmiger (Querschnitt gegeben.According to the invention, the spring leaves have a corrugated sheet metal (cross-section given.

In der Zeichnung ist ein solcher (Querschnitt dargestellt.One such (cross-section is shown in the drawing.

Das Federblatt a ist in seiner ganzen Länge wellblechförmig ausgebildet, wobei die Zahl der Wellen beliebig groß ist. Tunlichst wird dabei der Querschnitt, der über der Biegelinie b-b liegt, gleich dem Querschnitt gemacht, der unter der Biegelinie liegt. Die Zahl der Blätter ist beliebig, ihre Wellen ebenfalls. Sie können angeschärft oder in irgendeiner Form beschnitten sein, um einen idealen Träger gleicher Festigkeit zu bekommen. Alle diese Mittel sind ohne Einfluß auf das Wesen der vorliegenden Erfindung.The spring leaf a is designed in the shape of a corrugated sheet metal over its entire length, where the number of waves is arbitrarily large. As far as possible, the cross-section is which lies above the bending line b-b, made equal to the cross-section below the Bending line lies. The number of leaves is arbitrary, as are their waves. she can be sharpened or trimmed in some shape to make an ideal wearer get the same strength. All these means have no influence on the being of the present invention.

In Abb.2 ist ein Querschnitt durch eine Feder von fünf Blättern dargestellt. c sind die Organe an der Einspannstelle. Die Art der Ausbildung des die dickste Stelle der Feder zusammenhaltenden Organs ist beliebig. Neben einer ganz wesentlichen Zunahme der Querdehnung wird eine derartige Feder von gleicher Leistung einer normalen Feder gegenüber leichter sein.Figure 2 shows a cross section through a spring of five leaves. c are the organs at the clamping point. The type of training of the thickest Place of the spring cohesive organ is arbitrary. In addition to a very important one With an increase in transverse strain, such a spring has the same performance as a normal one To be lighter than feather.

Claims (1)

PATENTANSPRUCH: Blattfeder, dadurch gekennzeichnet, daß die einzelnen aufeinanderliegenden Federblätter (rz) wellblechförmigen (Querschnitt besitzen. PATENT CLAIM: Leaf spring, characterized in that the individual spring leaves (rz) lying on top of one another have a cross-section in the form of a corrugated sheet.
DEE28549D Leaf spring Expired DE389200C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE28549D DE389200C (en) Leaf spring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE28549D DE389200C (en) Leaf spring

Publications (1)

Publication Number Publication Date
DE389200C true DE389200C (en) 1924-02-04

Family

ID=7073403

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE28549D Expired DE389200C (en) Leaf spring

Country Status (1)

Country Link
DE (1) DE389200C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE937446C (en) * 1952-08-30 1956-01-05 Walter Stuebner Device for setting and limiting the suspension on leaf springs protruding over the support points
DE940079C (en) * 1948-12-03 1956-03-08 Wilhelm Morgenbrod Spring leaf for layered leaf springs
WO2016091752A1 (en) * 2014-12-09 2016-06-16 Hendrickson France S.A.S. Spring for a vehicle
CN107237900A (en) * 2016-03-29 2017-10-10 珠海华宇金属有限公司 A kind of flat spring and four-way reversing valve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE940079C (en) * 1948-12-03 1956-03-08 Wilhelm Morgenbrod Spring leaf for layered leaf springs
DE937446C (en) * 1952-08-30 1956-01-05 Walter Stuebner Device for setting and limiting the suspension on leaf springs protruding over the support points
WO2016091752A1 (en) * 2014-12-09 2016-06-16 Hendrickson France S.A.S. Spring for a vehicle
CN107002794A (en) * 2014-12-09 2017-08-01 瀚瑞森商用车辆系统欧洲有限公司 Spring for vehicle
US10371224B2 (en) 2014-12-09 2019-08-06 Hendrickson Commerical Vehicle Systems Europe GmbH Spring for a vehicle
CN107237900A (en) * 2016-03-29 2017-10-10 珠海华宇金属有限公司 A kind of flat spring and four-way reversing valve

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