WO2014015865A1 - Betätigungsvorrichtung - Google Patents
Betätigungsvorrichtung Download PDFInfo
- Publication number
- WO2014015865A1 WO2014015865A1 PCT/DE2013/200043 DE2013200043W WO2014015865A1 WO 2014015865 A1 WO2014015865 A1 WO 2014015865A1 DE 2013200043 W DE2013200043 W DE 2013200043W WO 2014015865 A1 WO2014015865 A1 WO 2014015865A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- turns
- group
- tension spring
- bias
- windings
- Prior art date
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
- F16F1/047—Wound springs characterised by varying pitch
-
- 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
- F16F2236/00—Mode of stressing of basic spring or damper elements or devices incorporating such elements
- F16F2236/06—Tension
Definitions
- the invention relates to a tension spring made of a wire material having a plurality of helical turns.
- helical compression springs are used in clutch disks or in dual-mass flywheels, which are arranged in windows between two disks arranged to rotate relative to one another in the torque flow.
- Disc spring stacks are also known as energy accumulators for torque transmission systems which have a degressive force-displacement characteristic.
- plate spring stacks have the property of friction between the individual plate springs of the disk spring stack, which impairs the characteristic of the plate spring stack.
- tension springs are used in torque transmission systems, which have a linear characteristic or are composed of several springs. From DE 943 150 B tension springs are known which are formed from two tension springs and which are screwed into one another.
- An embodiment of the invention provides a tension spring, which is made of a wire material having a plurality of helical turns, wherein the windings are divisible into at least two groups, wherein at least a first group of turns is formed such that the windings under a Vor - voltage to each other.
- the force can only counteract the restoring force of a group of turns at a first force, because the group of turns with the bias as such is not involved in the restoring action, but remains homogeneously closed, as long as the bias is not overcome. Only after exceeding the bias, the windings of the group with bias from each other and take part in the restoring action. This causes that before the exceeding of the bias voltage, a spring characteristic with substantially linear characteristic results and after exceeding the bias voltage, the group of coils with bias results in a characteristic with a characteristic having a reduced slope.
- two groups of windings to be arranged adjacent to one another in the axial direction, one group being formed as a first group of windings such that the windings rest against one another under a prestress and one group is formed as a second group of windings is, whose turns are spaced from each other or rest without bias to each other.
- N1 is the number of turns of the first group and N2 is the number of turns of the second group and N1 is preferably equal to N2 or IN1 -N2I ⁇ 5.
- first groups of windings are provided which are separated from each other by at least one winding without bias or by a second group of windings.
- the one turn between the first groups of turns can be a proportional turn, a complete turn or more than one turn. This ensures that the transition between two groups with bias can be optimally achieved.
- the wire material is a material with a round or ovalized cross-section. Thereby, an inexpensive wire material can be used that is easy to use in manufacturing.
- the wire material has contact areas at which opposing turns could touch or touch, wherein the cross section of the wire material is flattened in the touch areas. As a result, the contact areas do not shift due to the bias.
- FIG. 1 shows a schematic representation for explaining the tension spring according to the invention
- Figure 2 is a characteristic of a tension spring according to the invention
- Figure 3 shows an embodiment of a tension spring according to the invention
- Figure 4 shows an embodiment of a tension spring according to the invention.
- FIG. 1 shows a section of a coil spring in section, which is designed as a tension spring 1.
- the two windings 2, 3 are applied with a bias to each other. This is illustrated by the fact that the next turn 5 would be wound after the turn 3 so as to occupy the punctured arrangement in the upper illustration of FIG. 1, if it were not prevented by the turn 3.
- the winding 5 sets next to the winding 3 according to the lower illustration of Figure 1, wherein in the upper part of the image the dotted arrangement relative to the winding 3 has an intersection hi and the winding 5 with the dotted arrangement 6 in the lower part of Figure 1 has an overlap h 2 .
- the intersection hi plus the intersection h 2 results in the sum of the diameter of the wire material 7 of the tension spring first
- the tension spring 1 of Figure 1 is only partially shown to explain the preparation of the bias of the windings 2, 3 against each other.
- the wire material 7 is shown in the embodiment of Figure 4 around.
- the cross section could also be formed ovalized.
- the contact regions of the respective adjacent turns 2, 3 could be flattened, so that no linear contact between the individual turns but a more flat contact would be present.
- FIG. 2 shows a characteristic curve 10 of a tension spring 1, in which the force in kN is plotted against the elongation in mm. It can be seen that starting from an elongation From 0 mm to an elongation of about 2 mm, the characteristic has a first slope 1 1, wherein from the elongation of about 3 mm to the elongation of about 7 mm, the characteristic has a second pitch 12. The first slope 1 1 is steeper than the second slope 12. In the embodiment of Figure 2, the first slope 1 1 is about 0.172 kN / mm, the second slope 12 is about 0.056 kN / mm.
- the slope of the tension spring without consideration of the biased areas is thus about three times as stiff as the tension spring, taking into account the biased areas and after overcoming the bias.
- the transition between these two areas occurs from about 2 mm elongation of the tension spring, from about 0.3 kN tensile force.
- FIG. 3 shows a section through a tension spring 20 according to the invention, the tension spring 20 having a first group 21 of turns and a second group 22 of turns.
- the tension spring 20 is formed with turns 23, 24.
- the group 22 windings 23 are arranged, which are spaced apart from each other, wherein there is no bias between the individual windings 23.
- Windings 24 are provided in group 21, in which the windings 24 abut each other, so that adjacent windings 24 abut each other with a bias voltage.
- FIG. 4 shows another embodiment of the invention, again with a tension spring 30 is shown in section. It can be seen that the windings 31 are grouped into different groups 32, 33, 34 and 35, each group 32, 33, 34 and 35 being associated with two windings 31 each having a bias voltage abut each other. Between the groups 32, 33, 34 and 35 gaps 36 are provided between the windings 31, so that the groups 32, 33, 34 and 35 are separated from each other by windings 31 without bias.
- the turns are first stretched without prestressing before the turns of the groups are stretched with prestress after exceeding the prestressing.
- the turns of the groups are each in the form of a non-stretched block.
- After exceeding the bias are quasi several springs with corresponding spring constants D1, D2, D3, DN, which are arranged in a series connection, between each of which a spring with spring constant Dx is arranged as a non-biased spring.
- the reciprocal of the total spring constant D is then the sum of the reciprocal values of the individual spring constants D1, Dx, D2, Dx, etc. with:
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112013003664.9T DE112013003664A5 (de) | 2012-07-26 | 2013-07-12 | Betätigungsvorrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012213150.7 | 2012-07-26 | ||
DE102012213150 | 2012-07-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014015865A1 true WO2014015865A1 (de) | 2014-01-30 |
Family
ID=48953299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2013/200043 WO2014015865A1 (de) | 2012-07-26 | 2013-07-12 | Betätigungsvorrichtung |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102013213643A1 (de) |
WO (1) | WO2014015865A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3036127A1 (fr) * | 2015-05-11 | 2016-11-18 | Renault Sa | Actionneur pour ouverture automatique d'un hayon, muni d'un element elastique ayant une raideur progressive |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE943150C (de) | 1952-06-12 | 1956-05-09 | Eisen & Stahlind Ag | Zugfeder mit innerer Vorspannung |
US5464197A (en) * | 1994-08-15 | 1995-11-07 | Ecclesfield; George | Torsion spring having an adjustable spring rate |
DE29612394U1 (de) * | 1996-07-17 | 1997-11-13 | Gira Giersiepen Gmbh & Co Kg, 42477 Radevormwald | Druckfederelement, insbesondere zum Betätigen von elektrischen Schaltkontakten |
US6220586B1 (en) * | 1999-09-21 | 2001-04-24 | Precision Products Group | Multiple torsion spring and methods of use |
DE10113208A1 (de) * | 2000-03-31 | 2001-10-11 | Fuji Photo Optical Co Ltd | Spulenwelle und Verfahren zu ihrer Herstellung |
EP1335146A1 (de) * | 2002-02-07 | 2003-08-13 | Barnes Group, Inc. | Federanordnung mit eingefangenem Kern |
JP2011174513A (ja) * | 2010-02-24 | 2011-09-08 | Chuo Spring Co Ltd | ケーブル式操作装置 |
-
2013
- 2013-07-12 DE DE201310213643 patent/DE102013213643A1/de not_active Withdrawn
- 2013-07-12 WO PCT/DE2013/200043 patent/WO2014015865A1/de active Application Filing
- 2013-07-12 DE DE112013003664.9T patent/DE112013003664A5/de not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE943150C (de) | 1952-06-12 | 1956-05-09 | Eisen & Stahlind Ag | Zugfeder mit innerer Vorspannung |
US5464197A (en) * | 1994-08-15 | 1995-11-07 | Ecclesfield; George | Torsion spring having an adjustable spring rate |
DE29612394U1 (de) * | 1996-07-17 | 1997-11-13 | Gira Giersiepen Gmbh & Co Kg, 42477 Radevormwald | Druckfederelement, insbesondere zum Betätigen von elektrischen Schaltkontakten |
US6220586B1 (en) * | 1999-09-21 | 2001-04-24 | Precision Products Group | Multiple torsion spring and methods of use |
DE10113208A1 (de) * | 2000-03-31 | 2001-10-11 | Fuji Photo Optical Co Ltd | Spulenwelle und Verfahren zu ihrer Herstellung |
EP1335146A1 (de) * | 2002-02-07 | 2003-08-13 | Barnes Group, Inc. | Federanordnung mit eingefangenem Kern |
JP2011174513A (ja) * | 2010-02-24 | 2011-09-08 | Chuo Spring Co Ltd | ケーブル式操作装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3036127A1 (fr) * | 2015-05-11 | 2016-11-18 | Renault Sa | Actionneur pour ouverture automatique d'un hayon, muni d'un element elastique ayant une raideur progressive |
Also Published As
Publication number | Publication date |
---|---|
DE112013003664A5 (de) | 2015-04-02 |
DE102013213643A1 (de) | 2014-01-30 |
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