GB698208A - Oscillation damper - Google Patents
Oscillation damperInfo
- Publication number
- GB698208A GB698208A GB7755/51A GB775551A GB698208A GB 698208 A GB698208 A GB 698208A GB 7755/51 A GB7755/51 A GB 7755/51A GB 775551 A GB775551 A GB 775551A GB 698208 A GB698208 A GB 698208A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotor
- stator
- recesses
- bosses
- series
- 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
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
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/02—Vibration-dampers; Shock-absorbers with relatively-rotatable friction surfaces that are pressed together
- F16F7/04—Vibration-dampers; Shock-absorbers with relatively-rotatable friction surfaces that are pressed together in the direction of the axis of rotation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
- Braking Arrangements (AREA)
Abstract
698,208. Frictional vibration-dampers. GRANET, C., and ROLAND, G. April 3, 1951 [April 6, 1950; Oct. 19, 1970], No. 7755/51. Class 108 (iii). The rotor 2, Figs. 1 and 2, of a frictional oscillation vibration-damper is made entirely or partially of resilient material and has at least one protuberance or boss 3, the stator 5, 6, 7 having means capable of rendering progressive the friction-damping action for either direction of rotation. In the construction shown in Figs. 1 and 2, the rotor 2 has three bosses 3 spaced at 120 degrees and co-operating with respective, similarly-shaped recesses 8 formed in the stator body 7. On deflection in either direction from a normal neutral position (shown), each boss is compressed as it passes from its recess 8 into an escape recess 10 within which it is able to move freely. Deflection is limited by axially-disposed rotor projections 4 which correspond with similar projections 11 formed on the stator end-plate 6. Friction between the opposed side-faces of the rotor 2 and stator end-platc 6 is adjustable by the action of a nut 12 bearing on angularlyspaced fingers 14. A spring-loaded ball 18 in each finger, co-operates with a respective indexing recess in the nut 12. In a modification, Figs. 5 to 7, two rotor portions 2a, 2b each identical with the rotor 2 of Figs. 1, 2 are rigid, but angularly spaced, with respect to each other, so that a boss 3a on the portion 2a lies equidistant from adjacent bosses 3b on the portion 2b. The stator body 7 is formed with a pair of correspondingly angularlyoriented series of recesses 8a, 8b, each identical with the series of recesses 8 of Figs. 1 and 2. The stator body 7 is also formed with a pair of series of escape recesses 10a, 10b corresponding to the recesses 10 of Figs. 1 and 2. Deflection is limited by the action of an axial projection 4a. The portions 2a, 2b may be formed integrally, Fig. 9 (not shown), and a greater number of portions may be employed in conjuction with a corresponding number of stator recess series. The projections 3a, 3b may be assymetrically disposed in relation to the stator recesses so as to produce an initial friction force in the neutral position. In another form of construction, Fig. 3 (not shown), the bosses may project axially from the side faces of the rotor tn co-operate with recesses formed in side plates secured by bolts to the stator. A plurality of axially-disposed rotors may be assembled on a common operating shaft, Fig. 4 (not shown), each with a respective pair of recessed side-plates. A combination of the constructions of Figs. 1 and 3 (i.e. having both peripheral and axially-disposed bosses) may be employed. The rotor may be of natural or synthetic resin.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR698208X | 1950-04-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB698208A true GB698208A (en) | 1953-10-07 |
Family
ID=9047575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7755/51A Expired GB698208A (en) | 1950-04-06 | 1951-04-03 | Oscillation damper |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE896435C (en) |
GB (1) | GB698208A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2365506A (en) * | 2000-08-04 | 2002-02-20 | Par Actions Simplifiee Itw De | Rotation-retarding device |
EP1729029A1 (en) * | 2005-06-03 | 2006-12-06 | Key Plastics Lennestadt GmbH & Co. KG | Device for slowing down the relative rotation of relatively movable elements |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE541774A (en) * | 1954-11-05 | |||
DE1237847B (en) * | 1963-10-30 | 1967-03-30 | Erich Loehr G M B H | Friction shock absorber with two groups of friction disks that can be rotated against each other |
-
1951
- 1951-04-03 DE DEG5584A patent/DE896435C/en not_active Expired
- 1951-04-03 GB GB7755/51A patent/GB698208A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2365506A (en) * | 2000-08-04 | 2002-02-20 | Par Actions Simplifiee Itw De | Rotation-retarding device |
GB2365506B (en) * | 2000-08-04 | 2002-09-25 | Par Actions Simplifiee Itw De | Rotation-retarding device |
US6871730B2 (en) | 2000-08-04 | 2005-03-29 | I.T.W. De France | Rotation-retarding device with direct engagement |
US7191876B2 (en) | 2000-08-04 | 2007-03-20 | Itw De France | Rotation-retarding device with direct engagement |
EP1729029A1 (en) * | 2005-06-03 | 2006-12-06 | Key Plastics Lennestadt GmbH & Co. KG | Device for slowing down the relative rotation of relatively movable elements |
Also Published As
Publication number | Publication date |
---|---|
DE896435C (en) | 1953-11-12 |
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