WO2006122540A3 - Method and device for controlling a shock absorber - Google Patents

Method and device for controlling a shock absorber Download PDF

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Publication number
WO2006122540A3
WO2006122540A3 PCT/DE2006/000872 DE2006000872W WO2006122540A3 WO 2006122540 A3 WO2006122540 A3 WO 2006122540A3 DE 2006000872 W DE2006000872 W DE 2006000872W WO 2006122540 A3 WO2006122540 A3 WO 2006122540A3
Authority
WO
WIPO (PCT)
Prior art keywords
piston
build
shock absorber
suspension
borehole
Prior art date
Application number
PCT/DE2006/000872
Other languages
German (de)
French (fr)
Other versions
WO2006122540A2 (en
Inventor
Martin Kraiss
Original Assignee
Martin Kraiss
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 Martin Kraiss filed Critical Martin Kraiss
Publication of WO2006122540A2 publication Critical patent/WO2006122540A2/en
Publication of WO2006122540A3 publication Critical patent/WO2006122540A3/en

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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
    • F16F9/5126—Piston, or piston-like valve elements

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The shock absorber is for use in spring forks or in rear wheel suspensions of cycles. The rhythmic pedaling of the cycle rider leads to a build-up in the cycle suspension. The shock absorber efficiently suppresses this build-up and absorbs very sensitive shocks caused by uneven riding surfaces. When the working piston (4) compresses, the control piston (10) is always moved as well. The oil, which is displaced behind the control piston (10) escapes through the small borehole (20). During a medium to fast compression of the working piston (4), a dynamic pressure builds up in front of the small borehole (20), which opens the closing piston (17) and thus the pressure stage nozzle (14.2). This sensitively absorbs shocks that act upon the suspension due to uneven riding surfaces. During a slow change in the compression speed of the working piston (4), the dynamic pressure in front of the borehole (20) is insufficient for opening the closing piston (17). The pressure stage nozzle (14.2) thus remains closed and a build-up of the vehicle suspension by the pedaling of the cycle rider is prevented.
PCT/DE2006/000872 2005-05-19 2006-05-19 Method and device for controlling a shock absorber WO2006122540A2 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE102005023792.4 2005-05-19
DE102005023792 2005-05-19
DE102006019355 2006-04-24
DE102006019355.5 2006-04-24
DE102006021794 2006-05-09
DE102006021794.2 2006-05-09
DE102006023668 2006-05-18
DE102006023668.8 2006-05-18

Publications (2)

Publication Number Publication Date
WO2006122540A2 WO2006122540A2 (en) 2006-11-23
WO2006122540A3 true WO2006122540A3 (en) 2007-03-08

Family

ID=37431606

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2006/000872 WO2006122540A2 (en) 2005-05-19 2006-05-19 Method and device for controlling a shock absorber

Country Status (1)

Country Link
WO (1) WO2006122540A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008054643B3 (en) * 2008-12-15 2010-09-09 Zf Friedrichshafen Ag vibration
CN112485136B (en) * 2020-11-09 2022-09-13 马鞍山海森控电气有限公司 Digital display compaction rate tester

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3544474A1 (en) * 1985-12-16 1987-06-19 Anton Ing Grad Pfeifer Vehicle shock absorber
US4863002A (en) * 1988-08-10 1989-09-05 General Motors Corporation Active vehicle suspension apparatus with suspension velocity responsive actuator unloading
JPH0285536A (en) * 1988-09-21 1990-03-27 Kayaba Ind Co Ltd Hydraulic damper
DE3939485A1 (en) * 1989-11-29 1990-04-05 Rainer Dipl Ing Daumann Motor vehicle shock absorber - has device to increase damping force as load on vehicle increases
EP1352822A2 (en) * 1999-04-06 2003-10-15 Specialized Bicycle Components, Inc. Bicycle damping enhancement system
EP1652765A2 (en) * 2004-10-28 2006-05-03 Michael Potas Valve system controlled by rate of pressure change
EP1657469A1 (en) * 2004-11-11 2006-05-17 Zf Friedrichshafen Ag Vibration damper with adjustable damping force

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3544474A1 (en) * 1985-12-16 1987-06-19 Anton Ing Grad Pfeifer Vehicle shock absorber
US4863002A (en) * 1988-08-10 1989-09-05 General Motors Corporation Active vehicle suspension apparatus with suspension velocity responsive actuator unloading
JPH0285536A (en) * 1988-09-21 1990-03-27 Kayaba Ind Co Ltd Hydraulic damper
DE3939485A1 (en) * 1989-11-29 1990-04-05 Rainer Dipl Ing Daumann Motor vehicle shock absorber - has device to increase damping force as load on vehicle increases
EP1352822A2 (en) * 1999-04-06 2003-10-15 Specialized Bicycle Components, Inc. Bicycle damping enhancement system
EP1652765A2 (en) * 2004-10-28 2006-05-03 Michael Potas Valve system controlled by rate of pressure change
EP1657469A1 (en) * 2004-11-11 2006-05-17 Zf Friedrichshafen Ag Vibration damper with adjustable damping force

Also Published As

Publication number Publication date
WO2006122540A2 (en) 2006-11-23

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