GB1381785A - Vehicle bumper mounted on a shock absorber - Google Patents
Vehicle bumper mounted on a shock absorberInfo
- Publication number
- GB1381785A GB1381785A GB2162272A GB2162272A GB1381785A GB 1381785 A GB1381785 A GB 1381785A GB 2162272 A GB2162272 A GB 2162272A GB 2162272 A GB2162272 A GB 2162272A GB 1381785 A GB1381785 A GB 1381785A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve member
- force
- shock absorber
- backed
- constant
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R19/32—Fluid shock absorbers, e.g. with coaxial coil springs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
1381785 Shock absorber piston valves; valves FICHTEL & SACHS AG 9 May 1972 [15 May 1971] 21622/72 Headings F2S and F2V A shock absorber piston 42 is provided with a relief valve comprising a passage 43 and a valve member 44, the valve member being moved by fluid flowing through the passage from a position of maximum closing effect to positions of increasingly less closing effect, the force which resists movement of the valve member being substantially constant. In Fig. 4, and in Fig. 5 (not shown), the valve member provides its own restoring force, whereas in Figs. 3 and 6 (not shown), the valve member is backed up by disc springs, which may be prestressed. The spring is used over the range AB of its force-deflection characteristic shown in Fig. 9 so as to provide a constant force. In Figs. 7, 8 (not shown), the valve member is backed up by conical helical springs whose force-deflection characteristic (Fig. 10, not shown) is a straight line at a slight angle to the horizontal. The shock-absorber (Fig. 3, not shown) mounts a vehicle bumper. The construction of the relief valve ensures that the damping force is constant over the whole piston stroke regardless of the impact velocity (graphs in Figs. 1 and 2, not shown).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712124276 DE2124276A1 (en) | 1971-05-15 | 1971-05-15 | Pressure relief valve for bumper impact absorbers of motor vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1381785A true GB1381785A (en) | 1975-01-29 |
Family
ID=5808035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2162272A Expired GB1381785A (en) | 1971-05-15 | 1972-05-09 | Vehicle bumper mounted on a shock absorber |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2124276A1 (en) |
FR (1) | FR2137982B1 (en) |
GB (1) | GB1381785A (en) |
IT (1) | IT958860B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001051826A1 (en) * | 2000-01-15 | 2001-07-19 | Carl Schenck Ag | Passive force element on the basis of electrorheologic liquids |
US7997392B2 (en) | 2007-05-21 | 2011-08-16 | Fludicon Gmbh | Vibration damper |
US9662952B2 (en) | 2012-12-21 | 2017-05-30 | Hitachi Automotive Systems Europe Gmbh | Vibration damper |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5921283Y2 (en) * | 1979-04-23 | 1984-06-22 | 株式会社 昭和製作所 | Hydraulic cylinder for inboard and outboard motors |
DE19615585C2 (en) * | 1996-04-19 | 1999-07-01 | Mannesmann Sachs Ag | Piston-cylinder unit |
-
1971
- 1971-05-15 DE DE19712124276 patent/DE2124276A1/en active Pending
-
1972
- 1972-05-09 GB GB2162272A patent/GB1381785A/en not_active Expired
- 1972-05-10 FR FR7217525A patent/FR2137982B1/fr not_active Expired
- 1972-05-12 IT IT6849772A patent/IT958860B/en active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001051826A1 (en) * | 2000-01-15 | 2001-07-19 | Carl Schenck Ag | Passive force element on the basis of electrorheologic liquids |
US6749045B2 (en) | 2000-01-15 | 2004-06-15 | Carl Schenck Ag | Passive force element on the basis of electrorheologic liquids |
US7997392B2 (en) | 2007-05-21 | 2011-08-16 | Fludicon Gmbh | Vibration damper |
US9662952B2 (en) | 2012-12-21 | 2017-05-30 | Hitachi Automotive Systems Europe Gmbh | Vibration damper |
Also Published As
Publication number | Publication date |
---|---|
FR2137982A1 (en) | 1972-12-29 |
FR2137982B1 (en) | 1973-07-13 |
DE2124276A1 (en) | 1972-11-23 |
IT958860B (en) | 1973-10-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
429A | Application made for amendment of specification (sect. 29/1949) | ||
429H | Application (made) for amendment of specification now open to opposition (sect. 29/1949) | ||
429D | Case decided by the comptroller ** specification amended (sect. 29/1949) | ||
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |