IT1261352B - LINEAR ACTUATOR. - Google Patents

LINEAR ACTUATOR.

Info

Publication number
IT1261352B
IT1261352B ITTO930912A ITTO930912A IT1261352B IT 1261352 B IT1261352 B IT 1261352B IT TO930912 A ITTO930912 A IT TO930912A IT TO930912 A ITTO930912 A IT TO930912A IT 1261352 B IT1261352 B IT 1261352B
Authority
IT
Italy
Prior art keywords
screw
tubular body
linear actuator
illuminator
housed
Prior art date
Application number
ITTO930912A
Other languages
Italian (it)
Inventor
Piero Rizzi
Original Assignee
Roltra Morse 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 Roltra Morse Spa filed Critical Roltra Morse Spa
Priority to ITTO930912A priority Critical patent/IT1261352B/en
Publication of ITTO930912A0 publication Critical patent/ITTO930912A0/en
Priority to EP94118142A priority patent/EP0655796A1/en
Priority to PL94306041A priority patent/PL306041A1/en
Publication of ITTO930912A1 publication Critical patent/ITTO930912A1/en
Application granted granted Critical
Publication of IT1261352B publication Critical patent/IT1261352B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
    • H01Q3/16—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device
    • H01Q3/18—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device wherein the primary active element is movable and the reflecting device is fixed
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/125—Means for positioning

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Transmission Devices (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

Attuatore lineare (1) atto a movimentare l'illuminatore (204) di un antenna parabolica rispetto al riflettore (202) dell'antenna al fine di rendere possibile la ricezione di satelliti aventi posizione diversa. L'attuatore (1) comprende un involucro cilindrico (3) alloggiante un motore elettrico (5) azionante una vite (9) alloggiata in un corpo tubolare (7) che si estende assialmente da una estremità dell'involucro (3). La vite (9) porta una slitta (98) alloggiata nel corpo tubolare (7) e provvista di una madrevite a circolazione di sfere (114) che si accoppia con la vite (9). La slitta (98) è inoltre collegata con un supporto (120) il quale fuoriesce dal corpo tubolare (7) ed è atto a supportare l'illuminatore (204).[Fig. 1, 7].Linear actuator (1) adapted to move the illuminator (204) of a parabolic antenna with respect to the reflector (202) of the antenna in order to make it possible to receive satellites having different positions. The actuator (1) comprises a cylindrical casing (3) housing an electric motor (5) driving a screw (9) housed in a tubular body (7) which extends axially from one end of the casing (3). The screw (9) carries a slide (98) housed in the tubular body (7) and provided with a ball screw nut (114) which is coupled with the screw (9). The slide (98) is also connected with a support (120) which comes out of the tubular body (7) and is adapted to support the illuminator (204). [Fig. 1, 7].

ITTO930912A 1993-11-30 1993-11-30 LINEAR ACTUATOR. IT1261352B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITTO930912A IT1261352B (en) 1993-11-30 1993-11-30 LINEAR ACTUATOR.
EP94118142A EP0655796A1 (en) 1993-11-30 1994-11-17 Linear actuator
PL94306041A PL306041A1 (en) 1993-11-30 1994-11-29 Apparatus for positioning a wave receptor in audiovisual broadcast receiving antennas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO930912A IT1261352B (en) 1993-11-30 1993-11-30 LINEAR ACTUATOR.

Publications (3)

Publication Number Publication Date
ITTO930912A0 ITTO930912A0 (en) 1993-11-30
ITTO930912A1 ITTO930912A1 (en) 1995-05-30
IT1261352B true IT1261352B (en) 1996-05-14

Family

ID=11411910

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO930912A IT1261352B (en) 1993-11-30 1993-11-30 LINEAR ACTUATOR.

Country Status (3)

Country Link
EP (1) EP0655796A1 (en)
IT (1) IT1261352B (en)
PL (1) PL306041A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1126441A (en) * 1955-03-18 1956-11-22 Thomson Houston Comp Francaise Advanced mechanical system of travel and tilting combined
IT1224879B (en) * 1988-09-08 1990-10-24 Selenia Spazio Spa LINEAR ACTUATOR FOR ANTENNA POINTING, PARTICULARLY SUITABLE FOR SPATIAL APPLICATIONS
US4918363A (en) * 1988-09-30 1990-04-17 Venture Mfg. Co. Actuator for TVRO parabolic antenna
JPH05114815A (en) * 1991-10-21 1993-05-07 Yagi Antenna Co Ltd Multiple satellite reception antenna
DE4307675A1 (en) * 1992-03-14 1993-09-16 Zoran Maksan Satellite TV receiver for multiple satellites - has fixed dish with feed-horn mounted in such way to allow adjustment to receive signals from one or more nearby satellites.
DE9306071U1 (en) * 1992-09-03 1994-01-05 Super Sat Electronic Handels G Device for motorized guidance of a reception converter for the purpose of receiving various satellite positions with a fixed parabolic or offset antenna
DE9306769U1 (en) * 1993-02-02 1993-08-26 Huegelmann Joachim Satellite receiving antenna

Also Published As

Publication number Publication date
PL306041A1 (en) 1995-06-12
EP0655796A1 (en) 1995-05-31
ITTO930912A1 (en) 1995-05-30
ITTO930912A0 (en) 1993-11-30

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971127