EP1046469A2 - Vorrichtung für den Zusammenbau oder das Zerlegen von Feder/Stossdämpfer-Einheiten für Fahrzeugaufhängungen - Google Patents

Vorrichtung für den Zusammenbau oder das Zerlegen von Feder/Stossdämpfer-Einheiten für Fahrzeugaufhängungen Download PDF

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Publication number
EP1046469A2
EP1046469A2 EP20000108416 EP00108416A EP1046469A2 EP 1046469 A2 EP1046469 A2 EP 1046469A2 EP 20000108416 EP20000108416 EP 20000108416 EP 00108416 A EP00108416 A EP 00108416A EP 1046469 A2 EP1046469 A2 EP 1046469A2
Authority
EP
European Patent Office
Prior art keywords
spring
shock absorber
axis
stem
respect
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.)
Withdrawn
Application number
EP20000108416
Other languages
English (en)
French (fr)
Other versions
EP1046469A3 (de
Inventor
Lorenzo Sgiarovello
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.)
SYTEK SRL
Original Assignee
Parodi Iva
Sgiarovello Pierangelo
Sgiarovello Sara
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 Parodi Iva, Sgiarovello Pierangelo, Sgiarovello Sara filed Critical Parodi Iva
Publication of EP1046469A2 publication Critical patent/EP1046469A2/de
Publication of EP1046469A3 publication Critical patent/EP1046469A3/de
Withdrawn legal-status Critical Current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 present invention relates to apparatus for assembly and dismantling of spring/shock absorber units for vehicle suspensions, in which a shock absorber is disposed coaxially within a coil spring interposed with a preload between two plates fixed respectively to two parts of the shock absorber mounted so as to be relatively slidable.
  • the invention relates to apparatus for assembly and dismantling of spring/shock absorber units for vehicle suspensions, including:
  • This known apparatus comprises a horizontal frame the structure of which includes three parallel crosspieces on two of which are mounted respective pairs of slidable abutment members, a pair of engagement elements being mounted on the remaining cross piece.
  • the position of two abutment members and one engagement element is adjustable in such as way as to permit fixing to the frame in a position in which they constitute a stationary support for a portion of one turn of the spring of a spring/shock absorber unit, adjacent the first end of the spring.
  • the other two abutment members and the remaining engagement element are connected to a carriage movable along the frame in such a way as to constitute a slidable thrust unit engageable with a turn of the spring adjacent its second end.
  • the movement of the thrust unit is controlled by means of a pneumatic actuator which projects from one side of the frame.
  • a spring/shock absorber unit this is disposed on the frame with its axis substantially coincident with that of the structure of the frame, and with the shock absorber facing the part opposite the actuator.
  • the shock absorber cannot be positioned on the other part of the actuator since in this case it would interfere with the stem and with elements connected to it.
  • a portion of the spring adjacent its end opposite the shock absorber is engaged by the abutment members and by the engagement element fixable to the frame after their position has been adjusted in a manner corresponding to the shape of this end of the spring, after which the actuator device is actuated to bring a pair of abutment members of the thrust unit to take up position against a portion of the spring adjacent its other end.
  • the remaining engagement member is moved such that it can be introduced between two turns of the spring by the actuator.
  • the actuator is actuated again in such a way as to cause a further displacement of the thrust unit to compress the spring until at least counteracting its pre-compression so as to make it possible to dismount the spring support plates disposed at the ends of the spring/shock absorber unit opposite the body of the shock absorber.
  • the subject of the invention is an apparatus of the above-mentioned type disposed with its axis significantly spaced from the general axis of the structure in such a way that the shock absorber lies substantially alongside the actuator device so that there is a completely free manoeuvring space at the end of the spring/shock absorber unit opposite the actuator device.
  • the spring/shock absorber device can be disposed with the shock absorber alongside the actuator device in such a way that at the end of the apparatus opposite the actuator device there are no elements able to obstruct the operations needed for coupling and uncoupling the shock absorber and the spring of the unit.
  • the apparatus includes a support base to which the body of the actuator device is coupled and from which, in use of the apparatus, the said structure extends upwardly so that the said manoeuvring space is above the apparatus.
  • the apparatus extends vertically so that it can be located in a narrow space and nevertheless allows work on a spring/shock absorber unit to be performed conveniently from above, with all the advantages of rapid execution of the dismantling and assembly operations.
  • the apparatus 1 comprises an elongate structure 2 having general axis A and including a support base 3 by which it rests on the ground, with which the body of an actuator cylinder 5, normally of the pneumatic type, is associated, for example operable by an operator by means of a pedal 7.
  • the structure 2 includes in particular a column 9 of hollow profile which extends from the base 3 and within which is fitted a stem 11 of the cylinder 5 in such a way as to be axially slidable along the axis A along the direction indicated by the arrow B of Figure 1.
  • a stationary abutment member 13 having the form of a substantially arcuate arm the free end of which has a hollow seat 14 facing towards the cylinder 5, having a shape such as to allow engagement of a portion of one turn of the spring M of the spring/shock absorber unit G.
  • the seat 14 is intended to be engaged by a portion of a turn of the spring M adjacent its end opposite the shock absorber S of the unit G, or rather by a part of a plate P for retaining the spring M fixed by means of a nut N to the stem of the shock absorber S.
  • Both the seats 14 and 16 are spaced from the axis A and disposed in such a way as to be able to hold the spring M of the unit G when this latter is disposed with its axis H substantially spaced from and parallel to the axis A so that the unit G can be held by the apparatus 1 with the spring M engaged in the seats 14 and 16, the shock absorber S being disposed substantially along side the cylinder 5.
  • first engagement element 18 which comprises an arm 19 mounted in such a way as to be swingable transversely with respect to the axis A in the direction indicated by the arrow E.
  • a pin 21 At one end of the arm 19 there is fixed perpendicularly a pin 21 which in turn rotatably engages a bush 23 supported by a bracket 25 rigidly connected to the column 9.
  • a second engagement element 28 is fixed to the free end of the stem 11 in a position opposite the engagement element 18 on the opposite side the column 9 from the arm 15.
  • the element 28 comprises an arm 29 also swingable transversely with respect to the axis A in the direction identified by the arrow F, and one end of which is connected rigidly to a perpendicular pin 31 which rotatably engages a portion 33 supported by a bracket 35 fixed to the stem 11.
  • Both the shafts 21 and 31 are moreover mounted so as to be axially slidable in the associated bushes 23 and 33 along the directions respectively identified by the arrows of C and D.
  • the unit G is disposed at the structure 2 with the shock absorbers S alongside the actuator 5 to allow it to be dismantled or to allow the shock absorber S to be separated from the spring M, for example to allow for replacement of the shock absorber itself.
  • the actuator cylinder 5 is actuated to bring the seat 16 into engagement with a portion of a turn of the spring M at the end of the shock absorber S.
  • the actuator 5 can again be actuated to apply to the spring M, which is now symmetrically loaded with respect to the axis H of the unit G, an increasing load to compress it whereby to counteract its assembly preload.
  • the nut N which connects the shock absorber S to the plate P of the unit G disposed in the upper part of the apparatus 1 can be removed.
  • the operation of unscrewing the nut N can be performed conveniently by operating in the free manoeuvring space present above the apparatus 1 which, in particular, makes it possible easily to utilise automatic unscrewing devices commonly utilised in garages.
  • the shock absorber S can be replaced with another and it is then possible to proceed to assembly of the spring/shock absorber unit G by repeating the above-described operations in the reverse sense.
  • the structure of the apparatus 1 which has a vertical rather than a horizontal extent, it can be positioned in such a way as to occupy little space.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Automatic Assembly (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
EP00108416A 1999-04-23 2000-04-18 Vorrichtung für den Zusammenbau oder das Zerlegen von Feder/Stossdämpfer-Einheiten für Fahrzeugaufhängungen Withdrawn EP1046469A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO990325 1999-04-23
IT1999TO000325A IT1308450B1 (it) 1999-04-23 1999-04-23 Attrezzatura di smontaggio e di montaggio di gruppimolla-ammortizzatore per sospensioni di veicoli

Publications (2)

Publication Number Publication Date
EP1046469A2 true EP1046469A2 (de) 2000-10-25
EP1046469A3 EP1046469A3 (de) 2001-03-14

Family

ID=11417749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00108416A Withdrawn EP1046469A3 (de) 1999-04-23 2000-04-18 Vorrichtung für den Zusammenbau oder das Zerlegen von Feder/Stossdämpfer-Einheiten für Fahrzeugaufhängungen

Country Status (2)

Country Link
EP (1) EP1046469A3 (de)
IT (1) IT1308450B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003057414A1 (fr) * 2002-01-11 2003-07-17 Mecanique Energetique Compresseur de ressorts de suspension de vehicule automobile
JP2014104531A (ja) * 2012-11-27 2014-06-09 Toyota Motor Corp コイルスプリングコンプレッサ
CN104416531A (zh) * 2013-08-27 2015-03-18 上海航天设备制造总厂 柱塞式管路接头的拆卸方法及拆卸工具
CN108747315A (zh) * 2018-07-09 2018-11-06 中山市科力高自动化设备有限公司 一种前悬减震器弹簧组装机的夹紧装置
CN113997245A (zh) * 2021-10-27 2022-02-01 中车南京浦镇车辆有限公司 一种一系橡胶弹簧自动组装装置和工作方法
CN114952720A (zh) * 2022-06-22 2022-08-30 四川航天长征装备制造有限公司 一种阀体螺母分解装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO960229A1 (it) 1996-03-25 1997-09-25 Seam S R L Dispositivo per lo smontaggio ed il rimontaggio di gruppi molla-ammor tizzatore per veicoli

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2853090A1 (de) * 1978-12-08 1980-06-12 Horst Klann Spannvorrichtung fuer schraubendruckfedern
KR930007769Y1 (ko) * 1991-07-16 1993-11-17 하태홍 자동차용 쇽 업저어버(Shock absorber)의 스프링 압축기
DE9308869U1 (de) * 1993-06-15 1993-09-16 Weitner, Werner, 85072 Eichstätt Federspannvorrichtung
US5507470A (en) * 1994-12-21 1996-04-16 Amstutz; Peter Spring compressor
JP3661021B2 (ja) * 1995-11-10 2005-06-15 カヤバ工業株式会社 スプリングコンプレッサ

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO960229A1 (it) 1996-03-25 1997-09-25 Seam S R L Dispositivo per lo smontaggio ed il rimontaggio di gruppi molla-ammor tizzatore per veicoli

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003057414A1 (fr) * 2002-01-11 2003-07-17 Mecanique Energetique Compresseur de ressorts de suspension de vehicule automobile
FR2834660A1 (fr) * 2002-01-11 2003-07-18 Mecanique Energetique Compresseur de ressorts de suspension de vehicule automobile
US7114228B2 (en) 2002-01-11 2006-10-03 Mecanique Energetique Motor vehicle suspension spring compressor
JP2014104531A (ja) * 2012-11-27 2014-06-09 Toyota Motor Corp コイルスプリングコンプレッサ
CN104416531A (zh) * 2013-08-27 2015-03-18 上海航天设备制造总厂 柱塞式管路接头的拆卸方法及拆卸工具
CN108747315A (zh) * 2018-07-09 2018-11-06 中山市科力高自动化设备有限公司 一种前悬减震器弹簧组装机的夹紧装置
CN113997245A (zh) * 2021-10-27 2022-02-01 中车南京浦镇车辆有限公司 一种一系橡胶弹簧自动组装装置和工作方法
CN114952720A (zh) * 2022-06-22 2022-08-30 四川航天长征装备制造有限公司 一种阀体螺母分解装置
CN114952720B (zh) * 2022-06-22 2023-11-03 四川航天长征装备制造有限公司 一种阀体螺母分解装置

Also Published As

Publication number Publication date
EP1046469A3 (de) 2001-03-14
ITTO990325A1 (it) 2000-10-23
ITTO990325A0 (it) 1999-04-23
IT1308450B1 (it) 2001-12-17

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