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GB1387812A - Drive mechanisms - Google Patents

Drive mechanisms

Info

Publication number
GB1387812A
GB1387812A GB891671A GB891671A GB1387812A GB 1387812 A GB1387812 A GB 1387812A GB 891671 A GB891671 A GB 891671A GB 891671 A GB891671 A GB 891671A GB 1387812 A GB1387812 A GB 1387812A
Authority
GB
United Kingdom
Prior art keywords
nut
support
shaft
bushes
gearing
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
GB891671A
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.)
Qioptiq Ltd
Original Assignee
Pilkington PE 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 Pilkington PE Ltd filed Critical Pilkington PE Ltd
Priority to GB891671A priority Critical patent/GB1387812A/en
Publication of GB1387812A publication Critical patent/GB1387812A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0149—Head-up displays characterised by mechanical features
    • 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
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0149—Head-up displays characterised by mechanical features
    • G02B2027/0154—Head-up displays characterised by mechanical features with movable elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0179—Display position adjusting means not related to the information to be displayed
    • G02B2027/0187—Display position adjusting means not related to the information to be displayed slaved to motion of at least a part of the body of the user, e.g. head, eye

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

1387812 Screw-and-nut mechanism PILKINGTON PE Ltd 30 May 1972 [6 April 1971] 8916/71 Heading F2Q [Also in Division G2] A head-up display unit, incorporating a combiner plate 1 carried on a support 2 mounted by means of bushes 3, 4 on a guide tube 5, is movable axially along the guide tube 5 by screw-and-nut gearing comprising a screwthreaded shaft 8 which is engaged by a segmental nut 12 having an extending portion 13 carried by the support 2 and located in a slot 14 in the upper wall of tube 5. Rotation of shaft 8 causes axial movement of support 2. Engagement or disengagement of the nut 12 may be effected by operation of a trigger 18 acting against a spring 16. The shaft 8 is driven from a motor through gearing 19, 20, 22, 23 and a gear-box. Preferably the bushes 3, 4 are of the recirculating ball type. The position of member 2 is sensed by means comprising a rack and pinion and a potentiometer.
GB891671A 1971-04-06 1971-04-06 Drive mechanisms Expired GB1387812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB891671A GB1387812A (en) 1971-04-06 1971-04-06 Drive mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB891671A GB1387812A (en) 1971-04-06 1971-04-06 Drive mechanisms

Publications (1)

Publication Number Publication Date
GB1387812A true GB1387812A (en) 1975-03-19

Family

ID=9861798

Family Applications (1)

Application Number Title Priority Date Filing Date
GB891671A Expired GB1387812A (en) 1971-04-06 1971-04-06 Drive mechanisms

Country Status (1)

Country Link
GB (1) GB1387812A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149052A (en) * 1983-10-27 1985-06-05 Eaton Corp Vernier control device
FR2726095A1 (en) * 1994-10-08 1996-04-26 Pilkington Perkin Elmer Ltd HEAD-UP READING DISPLAY DEVICE
EP0836107A2 (en) * 1996-10-09 1998-04-15 Shimadzu Corporation Head-up display

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149052A (en) * 1983-10-27 1985-06-05 Eaton Corp Vernier control device
FR2726095A1 (en) * 1994-10-08 1996-04-26 Pilkington Perkin Elmer Ltd HEAD-UP READING DISPLAY DEVICE
US5841408A (en) * 1994-10-08 1998-11-24 Pilkington P.E. Limited Head-up displays
EP0836107A2 (en) * 1996-10-09 1998-04-15 Shimadzu Corporation Head-up display
EP0836107A3 (en) * 1996-10-09 1999-03-10 Shimadzu Corporation Head-up display
US6504518B1 (en) 1996-10-09 2003-01-07 Shimadzu Corporation Head-up display

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Legal Events

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