GB1224712A - Headlamp adjusting systems for road vehicles - Google Patents

Headlamp adjusting systems for road vehicles

Info

Publication number
GB1224712A
GB1224712A GB1834769A GB1834769A GB1224712A GB 1224712 A GB1224712 A GB 1224712A GB 1834769 A GB1834769 A GB 1834769A GB 1834769 A GB1834769 A GB 1834769A GB 1224712 A GB1224712 A GB 1224712A
Authority
GB
United Kingdom
Prior art keywords
piston
gas
filled
cushion
gas pressure
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
GB1834769A
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.)
Ducellier et Cie
Original Assignee
Ducellier et Cie
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 Ducellier et Cie filed Critical Ducellier et Cie
Publication of GB1224712A publication Critical patent/GB1224712A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/08Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
    • B60Q1/10Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to vehicle inclination, e.g. due to load distribution
    • B60Q1/105Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to vehicle inclination, e.g. due to load distribution by fluid means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/10Indexing codes relating to particular vehicle conditions
    • B60Q2300/13Attitude of the vehicle body
    • B60Q2300/132Pitch

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

1,224,712. Vehicle headlamps. DUCELLIER ET CIE. 10 April, 1969 [17 April, 1968], No. 18347/69. Heading F4R. In a temperature compensated headlamp adjusting system for a motor vehicle comprising control devices 4 which adjust the headlamps P in accordance with an input gas pressure derived from vehicle attitude sensing devices 3, the input gas pressure acts on a piston 20 working against an opposed resilient gas-filled cushion 19, which forms part of the control device, to adjust the lamps. Thus, as changes in gas pressure in the system and in the resilient cushion, due to temperature changes, are equal and act on the piston in opposition they cancel one another's effect and provide temperature compensation. Each gas-filled cushion 19 may be of toroidal form, the piston having an annular projection to co-operate with it. The front face of the piston contacts a membrane 15 which forms one wall of a variable volume chamber 16 connected via pipe 6 to the attitude sensing devices at the front and rear axles. The gas-filled cushions are connected together via pipes 18a and reservoir 35. In an alternative embodiment, Fig. 4, not shown, the gas-filled cushions are each in the form of a truncated cone, the smaller diameter wall being attached directly to the piston, and the other wall, through which the piston-rod passes, being retained by a metal plate having a central aperture to allow the passage of the piston-rod to the lamp. In a further embodiment of the system, the variable volume chamber 16 is connected to the sensing device at the back axle and the gas-filled cushion. 19 is connected to the front axle sensing device. Initial adjustments of the lamps are made manually by rotating the piston-rods 21 which are threaded to screw into the lamp 24.
GB1834769A 1968-04-17 1969-04-10 Headlamp adjusting systems for road vehicles Expired GB1224712A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR148351 1968-04-17

Publications (1)

Publication Number Publication Date
GB1224712A true GB1224712A (en) 1971-03-10

Family

ID=8649056

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1834769A Expired GB1224712A (en) 1968-04-17 1969-04-10 Headlamp adjusting systems for road vehicles

Country Status (5)

Country Link
BE (1) BE729902A (en)
DE (1) DE1918295A1 (en)
FR (1) FR1569921A (en)
GB (1) GB1224712A (en)
NL (1) NL6904779A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947680A (en) * 1973-08-06 1976-03-30 Societe Anonyme Automobiles Citroen Steering responsive control device for turning automotive headlamps

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2654015C2 (en) * 1976-11-27 1982-04-01 Robert Bosch Gmbh, 7000 Stuttgart Hydraulic device for automatically correcting the headlight inclination of a motor vehicle
DE102009035563A1 (en) * 2009-07-31 2011-02-03 Hella Kgaa Hueck & Co. Temperature compensated recording of a light module in a housing of a headlight

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947680A (en) * 1973-08-06 1976-03-30 Societe Anonyme Automobiles Citroen Steering responsive control device for turning automotive headlamps

Also Published As

Publication number Publication date
FR1569921A (en) 1969-06-06
NL6904779A (en) 1969-10-21
BE729902A (en) 1969-08-18
DE1918295A1 (en) 1969-11-06

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