EP1593461A1 - Dispositif pour comprimer des ressorts de compression helicolidal - Google Patents

Dispositif pour comprimer des ressorts de compression helicolidal Download PDF

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Publication number
EP1593461A1
EP1593461A1 EP04029755A EP04029755A EP1593461A1 EP 1593461 A1 EP1593461 A1 EP 1593461A1 EP 04029755 A EP04029755 A EP 04029755A EP 04029755 A EP04029755 A EP 04029755A EP 1593461 A1 EP1593461 A1 EP 1593461A1
Authority
EP
European Patent Office
Prior art keywords
dome
shaped
tensioning
radius
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.)
Ceased
Application number
EP04029755A
Other languages
German (de)
English (en)
Inventor
Heinz Römer
Peter Welp
Rolf Hemmerle
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.)
Hazet Werk Hermann Zerver GmbH and Co KG
Original Assignee
Hazet Werk Hermann Zerver 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 Hazet Werk Hermann Zerver GmbH and Co KG filed Critical Hazet Werk Hermann Zerver GmbH and Co KG
Publication of EP1593461A1 publication Critical patent/EP1593461A1/fr
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/30—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs
    • B25B27/302—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs coil springs other than torsion coil springs
    • B25B27/304—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs coil springs other than torsion coil springs by compressing coil springs

Definitions

  • the invention relates to an inner tensioner for tensioning a helical compression spring according to the features in the preamble of claim 1.
  • DE 37 20 018 discloses a generic inner clamp for Helical compression springs, which from a centric within a too exciting helical compression spring positionable and by means of a Clamping drive in its effective length changeable clamping element as well of two axially supported against the clamping element clamping plates to rest on each one spring coil of the helical compression spring.
  • Both clamping plates have a central bore, wherein the drive-side 2.
  • the clamping element comprises a threaded spindle in one Threaded tube, wherein at one end of the clamping element a drive and on opposite end radially outwardly projecting fingers are provided. The to be mounted on the clamping element at the occupied with radial fingers end 1.
  • Angled offset to the outwardly projecting Recesses of the 1st clamping plate are in the surface of the 1st clamping plate Wells introduced in which the radial fingers in the assembled state of Internal clamps are held positively.
  • the invention is - starting from the prior art - the task underlying, an inner tensioner for tensioning a helical compression spring create, even with Relativverschwenkungen between the tensioning drive and the loaded by the helical compression spring 1. Spannteller a ensuring perfect clamping of the helical compression spring.
  • the invention is both noticeable in an internal tensioner noticeable, in which the tensioning drive from a central threaded spindle, a along the threaded spindle displaceable threaded sleeve and a one Length of the threaded spindle and the threaded sleeve cross
  • Protective sleeve is made, with the protective sleeve with the 2nd clamping plate and the free end of the threaded sleeve can be coupled to the 1st clamping plate, as well in an internal tensioner with a threaded spindle, a pressure piece and a Clamping nut, wherein the thickened 1st end of the threaded spindle with the 1. Clamping plate and the pressure piece with the 2nd clamping plate can be coupled.
  • a particularly advantageous embodiment of the inventive concept consists according to the features of claim 2 is that the first end of the tensioning drive to the second end formed hemispherical and a flat face on the circumference of straight edges and circular section-shaped Transition edge is limited.
  • spherical segment-shaped surfaces extend in the direction of the longitudinal axis of the tension drive.
  • These surfaces are according to the invention designed that the radius of the surfaces between the straight edges and the longitudinal axis is greater than the radius of the surfaces between the Transition edges and the longitudinal axis is dimensioned.
  • the Radius of the inner surfaces of the dome equal to the radius of the surfaces between the straight edges and the longitudinal axis.
  • a twist-proof embedding of the 1st end in the calotte of the 1st clamping plate is achieved according to the features of claim 4 characterized in that the Inner surfaces of the dome with straight edges and circular section-shaped Transition edges in the dome adjacent to the outside of the 1st clamping plate lead.
  • the features of claim 5 are on a shaft-like longitudinal section of the tension drive adjacent the 1st end two by one Peripheral bead provided separate constrictions.
  • the Diameter of these constrictions is smaller than the width of the transverse slot in the 1st clamping plate.
  • the diameter of the circumferential bead is larger measured as the width of the transverse slot, but smaller than the diameter the circular portion-shaped inner end of the transverse slot.
  • An expedient design of the tensioning drive is characterized according to claim 7 characterized in that the thickened 1st end, the constrictions and the Peripheral bead are provided directly on the threaded spindle.
  • the threaded section the threaded spindle is provided with a longitudinal groove for receiving a Sliding spring as part of a longitudinally displaceable with a clamping nut Pressure piece of the tensioning drive provided.
  • the pressure piece is advantageous according to claim 8 with a spherical segment-shaped Pressure surface for engagement in a correspondingly concave configured Dome on the periphery of a central opening in the 2nd clamping plate Provided.
  • the calotte is located on the 2. end facing outside of the 2nd clamping plate.
  • the second clamping plate is facing away from the calotte according to claim 10 Inside provided with a footprint for a spring coil whose Incline in the circumferential direction of the second clamping plate of the pitch of the helical compression spring is aligned, the vorläufungslos in the outer periphery of the 2. Spandeller passing footprint to the center axis of the second clamping plate is limited by a holding in a spring coil annular bead. Also here on the 2nd clamping plate the helical compression spring is through the Ring bead a perfect centering.
  • the central axis of the Ring bulge to the common center axis of the second clamping plate and the central opening facing away from the peripheral recess Direction is offset. This is also in constricted spatial Conditions facilitates the handling of the inner tensioner.
  • Figure 1 is generally an internal tensioner for tensioning a helical compression spring 2 designates, as for example for disassembly and Assembly of a helical compression spring 2 is used, the component the chassis of a motor vehicle forms.
  • the inner tensioner 1 is composed of a tensioning drive 3 with threaded spindle 4, pressure piece 5 and clamping nut 6 and two with the tensioning drive. 3 coupled clamping plates 7, 8 together.
  • threaded spindle 4 has over most of its length a threaded portion 9 with a rectangular thread 10 ( Figure 3). Front side of the threaded portion 9 is a axial projection 11 with key surfaces 12 for applying a tool.
  • the threaded portion 9 is parallel to the longitudinal axis 13 of the Threaded spindle 4 penetrated by a longitudinal groove 14.
  • the longitudinal groove 14 is used the engagement of a sliding spring 15, which is located in the pressure piece 5 (FIGS 1 to 3).
  • the pressure piece 5 can slide over the threaded portion 9. It lies with a ring gear 16 on a thrust bearing 17, which is inserted into the clamping nut 6 is ( Figure 3). In the figure 1, the thrust bearing 17 is not shown.
  • the Clamping nut 6 can via key surfaces 18 by means of a suitable Tool are displaced along the threaded portion 9.
  • the pressure piece 5 has a spherical segment-shaped Convex pressure surface 19 for engaging in a correspondingly concave configured Dome 20 in the outer side 21 of the second clamping plate 8 circumferentially one central aperture 22 ( Figures 1 to 6).
  • the footprint 25 is interrupted by a peripheral recess 29.
  • This circumferentially on the angle ⁇ extending recess 29th serves the passage of the spring wire of the helical compression spring 2 of the Inside 23 on the outside 21 of the second clamping plate 8.
  • the recess 29 circumferentially bounding surfaces 30 extend in radial planes, which intersect the central axis 31 of the annular bead 27. These Central axis 31 is to the common center axis 26 of the second clamping plate 8 and the central opening 22 by a dimension X in the recess 29th offset direction away.
  • the threaded portion 9 of the threaded spindle 4 is according to the particular Figures 7 and 8 in a shaft-like longitudinal section 32 via. This one points a constriction 33, which is followed by a circumferential bead 34. Between the bulge 34 and a thickened 1st end 35 of the Threaded spindle 4 is another constriction 36. The diameter D of the constrictions 33, 36 is sized equal.
  • the first end 35 is formed hemispherical to the threaded portion 9. His level end face 37 is on the circumference of straight edges 38 and circular section-shaped Transition edges 39 limited. From the straight edges 38 from spherical section-shaped surfaces 40 extend in the direction of Longitudinal axis 13 of the threaded spindle 4. Narrow spherical segment-shaped Surfaces 41 extend from the circular section-shaped transition edges 39 in the direction of the longitudinal axis 13. The radius R of the surfaces 40th between the straight edges 38 and the longitudinal axis 13 is greater than that Radius R1 of the surfaces 41 between the transition edges 39 and the Longitudinal axis 13 dimensioned. The circumferentially of the first end 35 measured length of the surfaces 40 corresponds to the larger radius R. about six times the length of the surfaces 41 with the smaller one Radius R1.
  • Front side of the first end 35 is an axial projection 42 with key surfaces 43rd provided for attaching a tool.
  • the 1st clamping plate 7 With the thickened 1st end 35 of the threaded spindle 4 is the 1st clamping plate. 7 coupled, which is more apparent from Figures 1 and 9 to 11.
  • the 1. Clamping plate 7 has a transverse slot 44, the inner end 45 of a circular section is trained. Circumference of the inner end 45 is adjacent the outer side 46 a cap 47 is formed, which with with the Configuration of the surfaces 40, 41 of the 1st end 35 aligned spherical segment-shaped wider inner surfaces 48 and the other hand narrower inner surfaces 49 is equipped.
  • the radius of all inner surfaces 48, 49 of the cap 47 corresponds to the radius R of the surfaces 40 between the straight edges 38 and the longitudinal axis 13 at the first end 35.
  • the wide Inner surfaces 48 open over straight edges 59 and the other hand narrower inner surfaces 49 via circular section-shaped transition edges 60th in the outer side 46 of the 1st clamping plate. 7
  • Figures 1, 9 and 11 show that the first clamping plate 7 is open the calotte 47 facing away from inside 50 with a vorsprungslos in the Outer circumference 51 transition footprint 52 for a spring coil 53rd the helical compression spring 2 is provided whose pitch in the circumferential direction of the 1st clamping plate 7 of the slope of the helical compression spring 2 is aligned.
  • the footprint 52 is to the central axis 54 of the clamping plate 7 out through limited to a spring coil 53 annular bead 55.
  • the the Annular bead 55 interrupting recess 56 on the circumference of the clamping plate. 7 serves the passage of the spring wire of the helical compression spring 2 of the Outside 56 on the inside 50. It extends over an angle ⁇ of about 90 ° between the surfaces 57.
  • the surfaces 57 extend in Radial planes that intersect the central axis 54 of the first clamping plate 7.
  • the diameter D of the constrictions 33, 36 on the shaft-like longitudinal section 32 of the threaded spindle 4 is smaller than the width B of the transverse slot 44 sized in the 1st clamping plate 7.
  • the diameter D1 of the Peripheral bead 34 is greater than the width B of the transverse slot 44, however smaller than the diameter D2 of the circular section-shaped inner end 45 the transverse slot 44 ( Figures 7, 8 and 9).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Springs (AREA)
EP04029755A 2004-04-28 2004-12-16 Dispositif pour comprimer des ressorts de compression helicolidal Ceased EP1593461A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200420006808 DE202004006808U1 (de) 2004-04-28 2004-04-28 Innenspanner zum Spannen einer Schraubendruckfeder
DE202004006808U 2004-04-28

Publications (1)

Publication Number Publication Date
EP1593461A1 true EP1593461A1 (fr) 2005-11-09

Family

ID=32798433

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04029755A Ceased EP1593461A1 (fr) 2004-04-28 2004-12-16 Dispositif pour comprimer des ressorts de compression helicolidal

Country Status (2)

Country Link
EP (1) EP1593461A1 (fr)
DE (1) DE202004006808U1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007053937A1 (de) * 2007-11-13 2009-05-14 Bayerische Motoren Werke Aktiengesellschaft Montagevorrichtung
CN102161187A (zh) * 2010-02-17 2011-08-24 株式会社日立建筑系统 弹簧压缩装置
JP2016175168A (ja) * 2015-03-23 2016-10-06 マツダ株式会社 コイルスプリングの圧縮保持治具
CN110052816A (zh) * 2019-05-17 2019-07-26 杭州富春弹簧有限公司 弧形弹簧自动压装装置
KR20200004760A (ko) * 2018-07-04 2020-01-14 도요타 지도샤（주） 자동차의 제조 방법 및 압축 보지 지그

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008028492A2 (fr) * 2006-09-08 2008-03-13 Scangrip A/S Compresseur de ressorts, sa mâchoire, son insert et son unité d'extension
CN108581954A (zh) * 2018-05-25 2018-09-28 河南森源电气股份有限公司 弹簧压缩安装装置
CN109457281B (zh) * 2018-12-27 2023-12-12 无锡丰力弹簧有限公司 悬挂吊簧的拉伸机
CN112080730B (zh) * 2020-08-31 2022-06-10 长春理工大学 一种用于柔性基底沉积薄膜的弹性夹具及其使用方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256594A (en) * 1964-07-10 1966-06-21 Eugene C Howard Spring compressing tool
EP0484215A1 (fr) * 1990-10-31 1992-05-06 Mecanique Energetique Compresseur de ressorts
DE4236690A1 (en) * 1992-02-26 1993-04-01 Faergemann & Soens Eftf Aps V Tool for compressing helical coil springs - has plates mounted on opposite ends of telescopic strut compressed by screwed spindle
DE19708586A1 (de) * 1996-03-11 1998-01-08 Mecanique Energetique Ergänzungsvorrichtung für eine Federkompressionsvorrichtung
DE20101841U1 (de) * 2001-02-03 2001-05-31 Hazet Werk Zerver Hermann Spannvorrichtung für Schraubenfedern

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256594A (en) * 1964-07-10 1966-06-21 Eugene C Howard Spring compressing tool
EP0484215A1 (fr) * 1990-10-31 1992-05-06 Mecanique Energetique Compresseur de ressorts
DE4236690A1 (en) * 1992-02-26 1993-04-01 Faergemann & Soens Eftf Aps V Tool for compressing helical coil springs - has plates mounted on opposite ends of telescopic strut compressed by screwed spindle
DE19708586A1 (de) * 1996-03-11 1998-01-08 Mecanique Energetique Ergänzungsvorrichtung für eine Federkompressionsvorrichtung
DE20101841U1 (de) * 2001-02-03 2001-05-31 Hazet Werk Zerver Hermann Spannvorrichtung für Schraubenfedern

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007053937A1 (de) * 2007-11-13 2009-05-14 Bayerische Motoren Werke Aktiengesellschaft Montagevorrichtung
DE102007053937B4 (de) * 2007-11-13 2016-04-21 Bayerische Motoren Werke Aktiengesellschaft Montagevorrichtung
CN102161187A (zh) * 2010-02-17 2011-08-24 株式会社日立建筑系统 弹簧压缩装置
CN102161187B (zh) * 2010-02-17 2014-06-04 株式会社日立建筑系统 弹簧压缩装置
JP2016175168A (ja) * 2015-03-23 2016-10-06 マツダ株式会社 コイルスプリングの圧縮保持治具
KR20200004760A (ko) * 2018-07-04 2020-01-14 도요타 지도샤（주） 자동차의 제조 방법 및 압축 보지 지그
JP2020006755A (ja) * 2018-07-04 2020-01-16 トヨタ自動車株式会社 自動車の製造方法及び圧縮保持治具
US11066114B2 (en) 2018-07-04 2021-07-20 Toyota Jidosha Kabushiki Kaisha Method for manufacturing automobile and compression holding jig
JP7035860B2 (ja) 2018-07-04 2022-03-15 トヨタ自動車株式会社 自動車の製造方法
CN110052816A (zh) * 2019-05-17 2019-07-26 杭州富春弹簧有限公司 弧形弹簧自动压装装置
CN110052816B (zh) * 2019-05-17 2023-10-31 杭州富春弹簧有限公司 弧形弹簧自动压装装置

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Publication number Publication date
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