GB1470960A - Energy absorbing device - Google Patents

Energy absorbing device

Info

Publication number
GB1470960A
GB1470960A GB2754273A GB2754273A GB1470960A GB 1470960 A GB1470960 A GB 1470960A GB 2754273 A GB2754273 A GB 2754273A GB 2754273 A GB2754273 A GB 2754273A GB 1470960 A GB1470960 A GB 1470960A
Authority
GB
United Kingdom
Prior art keywords
piston unit
cylinder
pressure chamber
june
annular clearance
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
GB2754273A
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.)
Armstrong Patents Co Ltd
Original Assignee
Armstrong Patents Co Ltd
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 Armstrong Patents Co Ltd filed Critical Armstrong Patents Co Ltd
Priority to GB2754273A priority Critical patent/GB1470960A/en
Publication of GB1470960A publication Critical patent/GB1470960A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/063—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid comprising a hollow piston rod
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

1470960 Shock absorbers ARMSTRONG PATENTS CO Ltd 10 June 1974 [9 June 1973] 27542/73 Heading F2S A shock absorber comprises a cylinder 52, a piston unit 50 slidable in the cylinder, a pressure chamber 72, 74 defined by the piston unit and the cylinder for containing a flowable material (e.g. liquid) and an annular clearance 70 between the piston unit and the cylinder which provides communication between the parts 72 and 74 of the pressure chamber, the annular clearance increasing in length, so as to provide an increasing resistance to flow, as the piston unit moves into the cylinder, over the full stroke of the piston unit. On compression, liquid flows from 74 to 72 and then into a reservoir space 86, inside the piston unit, pressurized by a gas space 88. In the drawing (not shown) accompanying the provisional specification, the inner end of the piston unit is closed, and the pressure chamber (32, 34) communicates with the reservoir in the piston unit via bores (36) in the wall of the piston unit.
GB2754273A 1974-06-10 1974-06-10 Energy absorbing device Expired GB1470960A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2754273A GB1470960A (en) 1974-06-10 1974-06-10 Energy absorbing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2754273A GB1470960A (en) 1974-06-10 1974-06-10 Energy absorbing device

Publications (1)

Publication Number Publication Date
GB1470960A true GB1470960A (en) 1977-04-21

Family

ID=10261292

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2754273A Expired GB1470960A (en) 1974-06-10 1974-06-10 Energy absorbing device

Country Status (1)

Country Link
GB (1) GB1470960A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009108122A1 (en) * 2008-02-28 2009-09-03 Singapore Technologies Kinetics Ltd Constant displacement shock absorber
CN109591740A (en) * 2019-01-15 2019-04-09 康郦 New automobile crash cushions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009108122A1 (en) * 2008-02-28 2009-09-03 Singapore Technologies Kinetics Ltd Constant displacement shock absorber
CN109591740A (en) * 2019-01-15 2019-04-09 康郦 New automobile crash cushions

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee