WO2000067851A3 - Controllable device having a matrix medium retaining structure - Google Patents

Controllable device having a matrix medium retaining structure Download PDF

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Publication number
WO2000067851A3
WO2000067851A3 PCT/US2000/012017 US0012017W WO0067851A3 WO 2000067851 A3 WO2000067851 A3 WO 2000067851A3 US 0012017 W US0012017 W US 0012017W WO 0067851 A3 WO0067851 A3 WO 0067851A3
Authority
WO
WIPO (PCT)
Prior art keywords
members
controllable
working space
medium
retaining structure
Prior art date
Application number
PCT/US2000/012017
Other languages
French (fr)
Other versions
WO2000067851A2 (en
Inventor
Gianni Sandrin
J David Carlson
Original Assignee
Lord Corp
Ro Sa Plast Spa
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 Lord Corp, Ro Sa Plast Spa filed Critical Lord Corp
Publication of WO2000067851A2 publication Critical patent/WO2000067851A2/en
Publication of WO2000067851A3 publication Critical patent/WO2000067851A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/005—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters
    • A63B21/0056—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters using electromagnetically-controlled friction, e.g. magnetic particle brakes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • 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
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/08—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other
    • F16F7/09—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other in dampers of the cylinder-and-piston type
    • 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
    • F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
    • F16F9/535—Magnetorheological [MR] fluid dampers
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/00058—Mechanical means for varying the resistance
    • A63B21/00069—Setting or adjusting the resistance level; Compensating for a preload prior to use, e.g. changing length of resistance or adjusting a valve

Abstract

A controllable damper (470) for resisting movement between two relatively moveable members includes a first member and a second member coupled for relative movement having a working space between them, and a controllable medium retaining structure, for example, an absorbent matrix (30), to hold a controllable medium only in the working space. A cage (86) preferably supports the matrix. A field generating coil (88a, 88b) is mounted to one of the first and second members to generate a field acting on the first and second members and the controllable medium in the working space. The rheology change in the medium produced by the field results in resistance to relative movement of the first and second members. A device according to the invention may be used in apparatus, such as washing machines, exercise equipment, air supported tables, and a range of other apparatuses that would benefit from controlled damping or braking. Devices including a two-piece outer housing (78a, 78b) are described.
PCT/US2000/012017 1999-05-06 2000-05-03 Controllable device having a matrix medium retaining structure WO2000067851A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/306,203 1999-05-06
US09/306,203 US6202806B1 (en) 1997-10-29 1999-05-06 Controllable device having a matrix medium retaining structure

Publications (2)

Publication Number Publication Date
WO2000067851A2 WO2000067851A2 (en) 2000-11-16
WO2000067851A3 true WO2000067851A3 (en) 2001-01-18

Family

ID=23184284

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/012017 WO2000067851A2 (en) 1999-05-06 2000-05-03 Controllable device having a matrix medium retaining structure

Country Status (2)

Country Link
US (1) US6202806B1 (en)
WO (1) WO2000067851A2 (en)

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Also Published As

Publication number Publication date
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