ES2007899A6 - Motor-driven elastic antenna mechanism - Google Patents

Motor-driven elastic antenna mechanism

Info

Publication number
ES2007899A6
ES2007899A6 ES8801725A ES8801725A ES2007899A6 ES 2007899 A6 ES2007899 A6 ES 2007899A6 ES 8801725 A ES8801725 A ES 8801725A ES 8801725 A ES8801725 A ES 8801725A ES 2007899 A6 ES2007899 A6 ES 2007899A6
Authority
ES
Spain
Prior art keywords
rope
gear
sprocket
motor
caused
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
ES8801725A
Other languages
Spanish (es)
Inventor
Nerino Ferreti
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.)
Zendar SpA
Original Assignee
Zendar SpA
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 Zendar SpA filed Critical Zendar SpA
Publication of ES2007899A6 publication Critical patent/ES2007899A6/en
Expired 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
    • H01Q1/10—Telescopic elements
    • H01Q1/103—Latching means; ensuring extension or retraction thereof

Abstract

PURPOSE: To compensate an abnormal stress that might be caused during operation by using a drawing rope with a rectangular cross section having a notch alternately at both sides and meshing a drawing sprocket with the drawing rope engaged therewith to gear by an intermediate elastic wheel and to prevent improper operation of the rope. CONSTITUTION: A drawing rope 1 has a rectangular cross section 5 with a notch 6 alternately at both sides, teeth 7 formed circumferential direction of a drawing sprocket 2 mesh with the notches 6, and a gear 3 is loosely fit to a center pin of a support structure 10. In the case of telescopic motion of a telescopic antenna 17, a motor 18 drives the gear 3 via pinions 19, 20, and a worm screw 21, the sprocket 2 connected by a spiral spring 4 is moved and the rope 1 is moved slidably in one or other direction. The spiral spring 4 placed between the gear 3 and the sprocket 2 absorbs a shock or a tear force caused by the caught rope 1 due to any cause or when the antenna reaches its limits or the like. Thus, improper operation of the rope is prevented and an abnormal stress that might be caused is compensated.
ES8801725A 1987-06-19 1988-05-31 Motor-driven elastic antenna mechanism Expired ES2007899A6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8746860A IT1214096B (en) 1987-06-19 1987-06-19 HANDLING DEVICES FOR MOTORIZED TELESCOPIC ANTENNAS

Publications (1)

Publication Number Publication Date
ES2007899A6 true ES2007899A6 (en) 1989-07-01

Family

ID=11259841

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8801725A Expired ES2007899A6 (en) 1987-06-19 1988-05-31 Motor-driven elastic antenna mechanism

Country Status (4)

Country Link
JP (1) JPS6412602A (en)
DE (1) DE3817517A1 (en)
ES (1) ES2007899A6 (en)
IT (1) IT1214096B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4221707C2 (en) * 1992-07-02 1995-11-02 Daimler Benz Ag Retractable antenna with a one-piece body
ES1096630Y (en) * 2013-11-07 2014-03-17 Munoz Santos Hernandez Compactable tube

Also Published As

Publication number Publication date
IT8746860A0 (en) 1987-06-19
DE3817517A1 (en) 1988-12-29
JPS6412602A (en) 1989-01-17
IT1214096B (en) 1990-01-10

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20000401