FR2298199A1 - Retractable aerial having fixed intermediate positions - has series of pawls engaging in central cogged wheel around which strip aerial is wrapped - Google Patents

Retractable aerial having fixed intermediate positions - has series of pawls engaging in central cogged wheel around which strip aerial is wrapped

Info

Publication number
FR2298199A1
FR2298199A1 FR7501512A FR7501512A FR2298199A1 FR 2298199 A1 FR2298199 A1 FR 2298199A1 FR 7501512 A FR7501512 A FR 7501512A FR 7501512 A FR7501512 A FR 7501512A FR 2298199 A1 FR2298199 A1 FR 2298199A1
Authority
FR
France
Prior art keywords
aerial
strip
central
intermediate positions
wrapped
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.)
Withdrawn
Application number
FR7501512A
Other languages
French (fr)
Inventor
Robert Eudier
Henri Le Gledic
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7501512A priority Critical patent/FR2298199A1/en
Publication of FR2298199A1 publication Critical patent/FR2298199A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/08—Means for collapsing antennas or parts thereof
    • H01Q1/085—Flexible aerials; Whip aerials with a resilient base
    • H01Q1/087—Extensible roll- up aerials

Landscapes

  • Details Of Aerials (AREA)
  • Telephone Set Structure (AREA)
  • Support Of Aerials (AREA)

Abstract

The radio aerial may be retracted entirely into a housing and has several fixed intermediate positions. The aerial element itself (5) is a metal strip having a curved cross-section to aid rigidity. Its free end has a cap preventing its retraction into the overall casing, and the aerial strip is extended into the casing and through a slot in a cylinder rotatable within the casing. A helical spring (4) within this is fastened to the aerial strip holding it in tension from a fixed central rod (3). A further strip (7) serves to allow the operation of a number of pawls engaging with a central cogged section, the number of pawls being equal to that of the intermediate aerial positions.
FR7501512A 1975-01-17 1975-01-17 Retractable aerial having fixed intermediate positions - has series of pawls engaging in central cogged wheel around which strip aerial is wrapped Withdrawn FR2298199A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7501512A FR2298199A1 (en) 1975-01-17 1975-01-17 Retractable aerial having fixed intermediate positions - has series of pawls engaging in central cogged wheel around which strip aerial is wrapped

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7501512A FR2298199A1 (en) 1975-01-17 1975-01-17 Retractable aerial having fixed intermediate positions - has series of pawls engaging in central cogged wheel around which strip aerial is wrapped

Publications (1)

Publication Number Publication Date
FR2298199A1 true FR2298199A1 (en) 1976-08-13

Family

ID=9149990

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7501512A Withdrawn FR2298199A1 (en) 1975-01-17 1975-01-17 Retractable aerial having fixed intermediate positions - has series of pawls engaging in central cogged wheel around which strip aerial is wrapped

Country Status (1)

Country Link
FR (1) FR2298199A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2814218A1 (en) 2000-09-21 2002-03-22 Lacroix Soc E Folding material for use as safety barrier or support, e.g. for antenna structure, is made from thin, flexible material which allows it to be rolled up for storage and consists of two half shells fixed together along edging strips

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2814218A1 (en) 2000-09-21 2002-03-22 Lacroix Soc E Folding material for use as safety barrier or support, e.g. for antenna structure, is made from thin, flexible material which allows it to be rolled up for storage and consists of two half shells fixed together along edging strips

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Legal Events

Date Code Title Description
ST Notification of lapse