GB1207805A - Improvements in or relating to motion damping devices - Google Patents

Improvements in or relating to motion damping devices

Info

Publication number
GB1207805A
GB1207805A GB5826166A GB5826166A GB1207805A GB 1207805 A GB1207805 A GB 1207805A GB 5826166 A GB5826166 A GB 5826166A GB 5826166 A GB5826166 A GB 5826166A GB 1207805 A GB1207805 A GB 1207805A
Authority
GB
United Kingdom
Prior art keywords
spring
motor
damped
dec
starting
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.)
Expired
Application number
GB5826166A
Inventor
Albert Frederick Lacey
William Skinner
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.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
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 Smiths Group PLC filed Critical Smiths Group PLC
Priority to GB5826166A priority Critical patent/GB1207805A/en
Publication of GB1207805A publication Critical patent/GB1207805A/en
Expired legal-status Critical Current

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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

1,207,805. Vibration dampers; springs. SMITHS INDUSTRIES Ltd. 22 Dec., 1967 [30 Dec., 1966], No. 58261/66. Heading F2S. The rotary movement of a stepping motor, e.g. in a vehicle odometer, is damped by a spring 4 of the form shown which engages a rotating part 1 such as a brake drum attached to the motor's shaft. On starting the motor, static friction causes the spring's central portion 5 to move with the part 1 until slipping occurs, after which further movement is damped by dynamic friction. During the static friction phase the spring is deformed and on stopping the spring relaxes toward the undeformed state shown. This tends to prevent final stoppage at a position of zero torque; moreover (in contrast to the effect of a purely frictional damper) starting from a position of near-zero torque is not prevented.
GB5826166A 1966-12-30 1966-12-30 Improvements in or relating to motion damping devices Expired GB1207805A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5826166A GB1207805A (en) 1966-12-30 1966-12-30 Improvements in or relating to motion damping devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5826166A GB1207805A (en) 1966-12-30 1966-12-30 Improvements in or relating to motion damping devices

Publications (1)

Publication Number Publication Date
GB1207805A true GB1207805A (en) 1970-10-07

Family

ID=10481158

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5826166A Expired GB1207805A (en) 1966-12-30 1966-12-30 Improvements in or relating to motion damping devices

Country Status (1)

Country Link
GB (1) GB1207805A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0244985A1 (en) * 1986-04-30 1987-11-11 Automotive Products Public Limited Company Torsional vibration damper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0244985A1 (en) * 1986-04-30 1987-11-11 Automotive Products Public Limited Company Torsional vibration damper
US4787612A (en) * 1986-04-30 1988-11-29 Automotive Products Plc Torsional vibration damper

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees