GB1375751A – Hydraulic telescopic shock absorber
– Google Patents
GB1375751A – Hydraulic telescopic shock absorber
– Google Patents
Hydraulic telescopic shock absorber
Info
Publication number
GB1375751A
GB1375751A
GB66572A
GB66572A
GB1375751A
GB 1375751 A
GB1375751 A
GB 1375751A
GB 66572 A
GB66572 A
GB 66572A
GB 66572 A
GB66572 A
GB 66572A
GB 1375751 A
GB1375751 A
GB 1375751A
Authority
GB
United Kingdom
Prior art keywords
cylinder
piston
liquid
shock absorber
vehicle frame
Prior art date
1971-07-14
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
GB66572A
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.)
ThyssenKrupp Bilstein GmbH
Original Assignee
August Bilstein GmbH
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.)
1971-07-14
Filing date
1972-01-06
Publication date
1974-11-27
1971-07-14
Priority claimed from DE19712135000
external-priority
patent/DE2135000C3/en
1972-01-06
Application filed by August Bilstein GmbH
filed
Critical
August Bilstein GmbH
1972-03-30
Priority to GB1331312D
priority
Critical
patent/GB1331312A/en
1974-11-27
Publication of GB1375751A
publication
Critical
patent/GB1375751A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
F16F9/486—Arrangements for providing different damping effects at different parts of the stroke comprising a pin or stem co-operating with an aperture, e.g. a cylinder-mounted stem co-operating with a hollow piston rod
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
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
F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
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
F16F9/346—Throttling passages in the form of slots arranged in cylinder walls
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
F16F2230/00—Purpose; Design features
F16F2230/10—Enclosure elements, e.g. for protection
Abstract
1375751 Vehicle bumpers AUGUST BILSTEIN 6 Jan 1972 [14 July 1971] 665/72 Heading B7J [Also in Division F2] A bumper 64 is mounted on a vehicle frame 65 by a shock absorber comprising a cylinder 10 containing liquid 12, a piston 14, formed as a cylindrical tube closed at at least one end, telescoping in the cylinder 10, and a resilient tube 20, secured at one end to the piston and at the other end to the cylinder, holding the liquid under positive pressure accommodating the liquid displaced from the cylinder, on impact, through throttling grooves or ports 26, and tending to effect return of the displaced liquid when the shock has passed. The members mounting the shock absorber on bumper and vehicle frame have sloping faces 68, 69 to protect the resilient tube 20 when the shock absorber is contracted on impact. The vehicle frame is also contoured at 70 for this purpose. There may be a valve in parallel with the axially spaced ports 26 (Fig. 5, not shown). A helical spring may act between the piston and cylinder (Fig. 4, not shown). The piston may be closed at both ends and contain liquid in communication with that in the cylinder and a gas bladder (Fig. 7, not shown) or be hollow (Fig. 2, not shown), in which case the exterior of the piston or of a plastics coating to the piston is grooved (Figs. 3a-3f, not shown) to allow flow of liquid to and from the cylinder. A helical spring may act between the closed hollow piston and the cylinder. The resilient tube may be attached in the manner of a rolling diaphragm (Fig. 7). The cylinder may be grooved or ported, in which case the tube is extended to cover the ports. Fig. 8 (not shown) depicts graphs of damping force, and piston velocity for different impact speeds.
GB66572A
1971-07-14
1972-01-06
Hydraulic telescopic shock absorber
Expired
GB1375751A
(en)
Priority Applications (1)
Application Number
Priority Date
Filing Date
Title
GB1331312D
GB1331312A
(en)
1972-01-06
1972-03-30
Recovery of metals from copper smelting slags
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
DE19712135000
DE2135000C3
(en)
1971-07-14
Impact absorbers for supporting bumpers on motor vehicles
DE2218952A
DE2218952C3
(en)
1971-07-14
1972-04-19
Impact absorbers for supporting bumpers on motor vehicles
Publications (1)
Publication Number
Publication Date
GB1375751A
true
GB1375751A
(en)
1974-11-27
Family
ID=25761419
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB66572A
Expired
GB1375751A
(en)
1971-07-14
1972-01-06
Hydraulic telescopic shock absorber
Country Status (10)
Country
Link
US
(2)
US3797818A
(en)
AU
(1)
AU4454272A
(en)
BR
(1)
BR7204707D0
(en)
CA
(1)
CA953320A
(en)
DE
(1)
DE2218952C3
(en)
FR
(1)
FR2146083A5
(en)
GB
(1)
GB1375751A
(en)
SE
(2)
SE367158B
(en)
SU
(1)
SU562218A3
(en)
ZA
(1)
ZA724873B
(en)
Families Citing this family (20)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2178299A5
(en)
*
1972-03-27
1973-11-09
Peugeot & Renault
DE2237914A1
(en)
*
1972-08-02
1974-02-21
Bilstein August Fa
SHOCK ABSORBER
DE2404706C3
(en)
*
1974-02-01
1980-05-22
Fichtel & Sachs Ag, 8720 Schweinfurt
Hydropneumatic impact damper
US3879075A
(en)
*
1974-03-19
1975-04-22
Gulf & Western Mfg Co
Energy absorbing bumper guard
US4245563A
(en)
*
1979-06-25
1981-01-20
Empson Kenneth G
Hydraulically damped railway car body roll
US4474267A
(en)
*
1979-06-25
1984-10-02
Holland Company
Method of hydraulically damping railway car body roll
US4257581A
(en)
*
1979-07-25
1981-03-24
Keeler Corporation
Impact absorbing strut
US4789192A
(en)
*
1985-12-20
1988-12-06
General Motors Corporation
Two-stage variable orifice energy absorber with cylinder cap having radially fixed blow out orifice
FR2633994B1
(en)
*
1988-07-08
1991-05-31
Salomon Sa
HYDRAULIC SHOCK ABSORBER
DE3901449C1
(en)
*
1989-01-19
1990-02-01
Boge Ag, 5208 Eitorf, De
US5511759A
(en)
*
1994-05-26
1996-04-30
Steelcase, Inc.
Hydraulic chair height adjustment mechanism
DE4427009C2
(en)
*
1994-07-29
1997-12-18
Metzeler Gimetall Ag
Impact absorber
FR2742505B1
(en)
*
1995-12-13
1998-11-27
Jean Perret Ets
DAMPER
IT1304247B1
(en)
*
1998-12-03
2001-03-13
Marzocchi Spa
SHOCK ABSORBER OR TELESCOPIC SUSPENSION, OF THE HYDRAULIC OR HYDROPNEUMATIC TYPE, WITH BUILT-IN COMPENSATOR, LOW-DIMENSION, OF
US6402128B1
(en)
*
2000-01-31
2002-06-11
The Goodyear Tire And Rubber Company
Air spring with lateral restraint and axial control
US6695104B2
(en)
*
2000-12-27
2004-02-24
Osman Akad
Reusable impact energy absorbing device
US7921974B2
(en)
*
2005-11-29
2011-04-12
Fox Factory, Inc.
Damping cylinder with annular bladder
US9073592B2
(en)
*
2011-10-12
2015-07-07
Jung Yu Hsu
Height adjustable seat tube with oil storage unit
CN108662070B
(en)
*
2017-03-27
2021-03-12
青岛海尔滚筒洗衣机有限公司
Damping system and washing machine including the same
DE102018219605A1
(en)
*
2018-07-07
2020-01-09
Robert Bosch Gmbh
Bremssystemdämpfvorrichtung
Family Cites Families (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US1234311A
(en)
*
1916-02-24
1917-07-24
Vickers Ltd
Landing device for aeroplanes and hydroaeroplanes.
US1350414A
(en)
*
1918-04-01
1920-08-24
Jesse D Langdon
Hydraulic air-cushion
US2600060A
(en)
*
1947-11-03
1952-06-10
Lopes Antonio Augusto
Bumper for motor vehicles
US2841294A
(en)
*
1956-06-04
1958-07-01
Pacific Car & Foundry Co
Hydraulic draft gears
US3410416A
(en)
*
1967-05-11
1968-11-12
Pullman Inc
Hydraulic cushioning device for railway vehicles
US3499546A
(en)
*
1968-01-25
1970-03-10
Hydra Cushion Inc
Hydraulic cushion device
US3568856A
(en)
*
1969-07-22
1971-03-09
Pullman Inc
Hydraulic cushioning device for railway cars
1971
1971-11-30
SE
SE15314/71A
patent/SE367158B/en
unknown
1972
1972-01-06
GB
GB66572A
patent/GB1375751A/en
not_active
Expired
1972-02-15
US
US00226534A
patent/US3797818A/en
not_active
Expired – Lifetime
1972-04-19
DE
DE2218952A
patent/DE2218952C3/en
not_active
Expired
1972-06-20
US
US00264503A
patent/US3774895A/en
not_active
Expired – Lifetime
1972-07-13
CA
CA147,018A
patent/CA953320A/en
not_active
Expired
1972-07-13
SE
SE7209239A
patent/SE373640B/en
unknown
1972-07-13
AU
AU44542/72A
patent/AU4454272A/en
not_active
Expired
1972-07-14
BR
BR4707/72A
patent/BR7204707D0/en
unknown
1972-07-14
ZA
ZA724873A
patent/ZA724873B/en
unknown
1972-07-17
FR
FR7226281A
patent/FR2146083A5/en
not_active
Expired
1972-09-28
SU
SU1830577A
patent/SU562218A3/en
active
Also Published As
Publication number
Publication date
SE373640B
(en)
1975-02-10
SE367158B
(en)
1974-05-20
FR2146083A5
(en)
1973-02-23
DE2135000B2
(en)
1975-08-28
US3797818A
(en)
1974-03-19
DE2218952A1
(en)
1973-10-31
BR7204707D0
(en)
1973-05-03
DE2135000A1
(en)
1973-01-25
CA953320A
(en)
1974-08-20
DE2218952B2
(en)
1977-01-27
US3774895A
(en)
1973-11-27
DE2218952C3
(en)
1980-04-24
ZA724873B
(en)
1973-10-31
SU562218A3
(en)
1977-06-15
AU4454272A
(en)
1974-01-17
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Legal Events
Date
Code
Title
Description
1975-04-09
PS
Patent sealed [section 19, patents act 1949]
1976-03-17
PLE
Entries relating assignments, transmissions, licences in the register of patents
1977-08-03
PLNP
Patent lapsed through nonpayment of renewal fees
