WO2007062389A9 - Amortisseur de vibrations a deux elements - Google Patents

Amortisseur de vibrations a deux elements

Info

Publication number
WO2007062389A9
WO2007062389A9 PCT/US2006/061198 US2006061198W WO2007062389A9 WO 2007062389 A9 WO2007062389 A9 WO 2007062389A9 US 2006061198 W US2006061198 W US 2006061198W WO 2007062389 A9 WO2007062389 A9 WO 2007062389A9
Authority
WO
WIPO (PCT)
Prior art keywords
dampening
fitting
axial channel
cable
vibration
Prior art date
Application number
PCT/US2006/061198
Other languages
English (en)
Other versions
WO2007062389A1 (fr
Inventor
Allen Irish
Eugene Ficyk
Original Assignee
L & P Property Management Co
Allen Irish
Eugene Ficyk
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 L & P Property Management Co, Allen Irish, Eugene Ficyk filed Critical L & P Property Management Co
Publication of WO2007062389A1 publication Critical patent/WO2007062389A1/fr
Publication of WO2007062389A9 publication Critical patent/WO2007062389A9/fr

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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
    • F16C1/26—Construction of guiding-sheathings or guiding-tubes
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
    • F16C1/10—Means for transmitting linear movement in a flexible sheathing, e.g. "Bowden-mechanisms"
    • F16C1/101—Intermediate connectors for joining portions of split flexible shafts and/or sheathings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
    • F16C1/10—Means for transmitting linear movement in a flexible sheathing, e.g. "Bowden-mechanisms"
    • F16C1/108—Reducing or controlling of vibrations, e.g. by resilient damping of noise
    • 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
    • F16F9/30—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium
    • 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
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/0208—Selector apparatus with means for suppression of vibrations or reduction of noise

Definitions

  • the present invention relates to fittings for flexible cable and conduit assemblies, in particular to fittings for reducing vibrations carried by the cable.
  • Cable and conduit assemblies are used in many contexts to transmit forces over a distance, particularly where the path of force transmission is not always in a straight line.
  • a cable, or core element runs through a conduit and moves in an axial direction.
  • Many such cable and conduit assemblies are used in automobiles, for example to connect the vehicle transmission system to the shift lever, particularly when the cable is taut.
  • a problem with this type of assembly is that vibrations from the engine can be transmitted through the cable to the shift lever. These vibrations can lead to unacceptable vibrations and noise within the passenger compartment of the vehicle.
  • the present invention is a vibration-dampening fitting comprising a two-piece construction having a continuous axial channel through both pieces of the fitting through which a cable runs when the two parts are assembled.
  • the axial channel is dimensioned such that a cavity exists between surface of the axial channel and the outer surface of the cable.
  • This cavity is filled with a dampening paste such as grease, which permits the cable to move axially but dampens movement, particularly movement perpendicular to the axis of the cable.
  • vibrations especially those that are perpendicular to the axis of the cable, are dampened. Therefore, vibrations that would otherwise be transmitted through the cable are reduced or eliminated.
  • Figure 1 illustrates a side plan view of two pieces of a vibration dampening fitting, wherein the two pieces are in a connected state and have a cable running through them.
  • Figure 2 illustrates a perspective view of an outer part of a vibration- dampening fitting.
  • Figure 3 illustrates a perspective view of an inner part of a vibration- dampening fitting.
  • Figure 4 illustrates a plan view of a vibration-dampening fitting in a vehicle transmission environment.
  • a dampening fitting 20 comprises an inner part 22 and an outer part 24.
  • the outer part 24 has a cylindrical cavity 46 of a substantially similar diameter as the outside diameter of the inner part 22.
  • the outer part 24 further comprises a plurality of radially-oriented gussets 48 that run parallel to the long axis of the outer part 24 to strengthen the fitting 20.
  • first channel 26 through the inner part 22 and a second channel 28 through the outer part 24 form a continuous axial channel 30 through which the cable 50 runs.
  • the fitting 20 is dimensioned such that a cavity 38 is formed between the inner surface of the first channel 26 and the outer surface of the cable 50 and such that the cavity 38 is substantially isolated from the remainder of the continuous axial channel 30.
  • the first channel 26 is substantially filled with dampening grease prior to assembly of the inner part 22 and outer part 24, resulting in the cavity 38 being substantially filled with dampening grease after assembly.
  • the dampening grease has a viscosity slightly lower than that of conventional wheel bearing grease.
  • dampening grease for reference, is made by Timken Automotive (part number GR224C) and is a general purpose lithium complex grease having a viscosity at 100° C, ⁇ STM D 445, of 17-20 Centistokes and a viscosity at 40° C, ASTM D 445, of 200-240 Centistokes, and a Viscosity Index of 95.
  • the inner part 22 has male threads 42 on the outside while the outer part 24 has matching female threads 44 on the inside.
  • the fitting 20 is assembled by screwing the inner part 22 into the outer part 24.
  • the inner part 22 and the outer part 24 fit together with a snug, low-tolerance connection that inhibits loss of grease through the point of contact between the two parts.
  • a distal face 32 of the inner part 22 mates snugly with a receiving face 34 of the outer part 24 to make a substantially tight connection.
  • the inner part 22 and outer part 24 preferably have means for being attached and locked to one another.
  • the means for attaching comprise complementary threads 26, 28 on each respective part 22, 24.
  • the means for locking in one embodiment comprises a C-clip 54 that slides onto the outer part 24 and snaps into place.
  • the C-clip 30 has a protrusion from its concave side that overlaps with a shoulder on the inner part 22, the shoulder being adjacent to the male threads 42, to prevent the inner part 22 from becoming unscrewed from the outer part 24.
  • the two parts of the fitting 20 are attached to a cable conduit 52 using known means such as crimping.
  • the attachment of the inner part 22 and the outer part 24 to the respective portions of the conduit 52 is done in a manner that forms a relatively tight connection preventing the grease from escaping.
  • Figure 4 illustrates the present invention working in a vehicle transmission environment, wherein the vibration-dampening fitting 20 is attached inline as part of an assembly that connects a shifter 60 to a vehicle transmission 62.
  • vibrations in the range of about 4300 to about 4500 Hertz can be transmitted from the transmission to the shifter via the cable and conduit assembly, producing undesirable vibration and noise in the passenger compartment.
  • the present invention eliminates or reduces the transmission of such vibration.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Flexible Shafts (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

L'invention concerne un procédé et un appareil améliorés visant à inhiber la transmission de vibrations sur un ensemble câble et conduit. L'appareil de l'invention comprend un raccord à deux éléments (20) qui possède un canal (30) à l'intérieur duquel passe le câble (50). Une cavité (39) est formée entre la surface extérieure du câble (50) et la surface intérieure du canal (26). Cette cavité (38) est sensiblement remplie par une pâte d'amortissement, par exemple de la graisse. La pâte d'amortissement inhibe le mouvement du câble (50) dans un sens perpendiculaire à l'axe du câble (50), ce qui permet de réduire ou d'éliminer la transmission de vibrations non désirées.
PCT/US2006/061198 2005-11-23 2006-11-22 Amortisseur de vibrations a deux elements WO2007062389A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73951705P 2005-11-23 2005-11-23
US60/739,517 2005-11-23

Publications (2)

Publication Number Publication Date
WO2007062389A1 WO2007062389A1 (fr) 2007-05-31
WO2007062389A9 true WO2007062389A9 (fr) 2008-08-07

Family

ID=37912635

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/061198 WO2007062389A1 (fr) 2005-11-23 2006-11-22 Amortisseur de vibrations a deux elements

Country Status (1)

Country Link
WO (1) WO2007062389A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441719A (en) * 1945-08-21 1948-05-18 Southwest Products Co Mechanical, lineal, rotary, flexible, push-pull transmission device
GB2060808B (en) * 1979-08-15 1983-06-02 Automotive Prod Co Ltd Clutch cables
US4953672A (en) * 1988-04-28 1990-09-04 Nippon Cable System, Inc. Control cable system with device for reducing vibration
FR2672653A1 (fr) * 1991-02-13 1992-08-14 Teledynamique Sa Commande antivibration a cable flexible.
WO1999010660A1 (fr) * 1997-02-07 1999-03-04 Burgaud Jean Marie Masse anti-vibrations a contenant et contenu
US5931736A (en) * 1997-06-20 1999-08-03 B.W. Elliot Manufacturing Co., Inc. Liner for rotating drive cables

Also Published As

Publication number Publication date
WO2007062389A1 (fr) 2007-05-31

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