US3470753A - Radio pushbutton support assembly - Google Patents

Radio pushbutton support assembly Download PDF

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Publication number
US3470753A
US3470753A US668876A US3470753DA US3470753A US 3470753 A US3470753 A US 3470753A US 668876 A US668876 A US 668876A US 3470753D A US3470753D A US 3470753DA US 3470753 A US3470753 A US 3470753A
Authority
US
United States
Prior art keywords
pushbutton
housing
radio
support assembly
frame
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 - Lifetime
Application number
US668876A
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English (en)
Inventor
Werner Bernhardt
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.)
US Philips Corp
Original Assignee
US Philips Corp
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 US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US3470753A publication Critical patent/US3470753A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/04—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings operated by hand
    • H03J5/12—Settings determined by a number of separately-actuated driving means which adjust the tuning element directly to desired settings

Definitions

  • the invention relates to a radio receiver, more particularly a car radio receiver, in combination with a pushbutton tuning device and a frame support therefor detachably arranged in front of the radio housing.
  • the pushbutton tuning devices for car radios are usually located beneath the dial box and are built in the housing separately from the dial box.
  • the pushbuttons themselves project from the housing so as to protrude slightly in front of, or are in line with the dial.
  • the invention has for its object to provide a construction which permits the conservation of available space inside the housing for the electric or electromechanical structural parts.
  • a radio receiver more particularly a car radio receiver
  • a pushbutton tuning device and frame support therefor detachably arranged in front of the housing.
  • the frame has at least one tongue projecting therefrom which forms the support for at least one pushbutton, and is mounted in front of the housing.
  • a connecting member attached to the pushbutton extends into the housing for cooperation with the switching mechanism.
  • FIG. 1 shows the part of the radio housing according to the invention and the supporting frame for the pushbutton switch
  • FIG. 2 is a sectional view of part of the pushbutton device according to the invention taken on the line II-II in FIG. 3,
  • FIG. 3 is a plan view of the apparatus.
  • a housing wall 1 of a car radio is provided with a frame support member 3, detachably fastened by means of screws 5.
  • the lower wall 7 of this frame is provided on its front side 9 with sheet tongues 11, punched from the material of the frame.
  • Hollow pushbuttons 19 are slipped on the sheet tongues 11 (FIG. 2).
  • the pushbuttons 19 are fastened by screws 21 to sliding guide members 23 and to connecting members 25.
  • the sliding guide members have helical springs 27 thereon for pushing the buttons 19 away from the guide rail 15, and extend through guide openings 28 of the guide rail 15; they are preferably made of a wear resistant synthetic resin.
  • the sliding guide members 23 are provided with extensions 29 (FIG.
  • the connecting members 25 are provided in their range of connection inside the pushbutton 19 when an elongated hole 35, extending in the direction of displace ment. By loosening a screw 21 the connecting member 25 can 'be displaced within a given range with respect to the pushbutton 19. Tolerances in the direction of displacement can thus easily be compensated for.
  • the connecting members 25 are provided with catching pins 37, extending at right angles to the direction of displacement and all in the same direction away from the connecting members 25. These catching pins 37 are inserted prior to the fastening of the pushbutton tuning device into openings of the associated switching parts. When the device is disengaged, for example, for repair, the entire pushbutton device can easily be loosened from the switching parts.
  • a pushbutton support assembly for tuning a radio receiver mounted outside of the receiver housing and comprising:
  • a frame support member detachably fastened to the housing wall of a radio receiver, said frame defining therein a plurality of apertures which are in alignment with an opening in the housing wall;
  • biased guide members slidably mounted on the tongues, for displacement against the biasing force, and toward the opening in the housing wall;
  • connecting means attached to the guide members, for movement therewith, and extending through the opening in the housing wall for cooperating with the radio switching parts therein;
  • latching means for retractably holding the guide members in their operative position.
  • a spring urged latch bar slidably mounted on the frame member, said latch bar defining therein a plurality of guide openings which are in alignment with the apertures in the frame member and the opening in the housing wall;
  • release means for the latch 'bar comprising a race formed in the guide extension and adapted, upon References Cited further inward movement, to displace the latch bar 5 UNITED STATES PATENTS against the sprlng force and thus permit the guide $234,800 2/1966 Clark et al- 74-1027 to return to its original position.

Landscapes

  • Structure Of Receivers (AREA)
  • Push-Button Switches (AREA)
  • Circuits Of Receivers In General (AREA)
US668876A 1966-09-24 1967-09-19 Radio pushbutton support assembly Expired - Lifetime US3470753A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP0040442 1966-09-24

Publications (1)

Publication Number Publication Date
US3470753A true US3470753A (en) 1969-10-07

Family

ID=7377141

Family Applications (1)

Application Number Title Priority Date Filing Date
US668876A Expired - Lifetime US3470753A (en) 1966-09-24 1967-09-19 Radio pushbutton support assembly

Country Status (4)

Country Link
US (1) US3470753A (es)
DE (1) DE1541528B2 (es)
ES (1) ES345347A1 (es)
GB (1) GB1203296A (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2727748A1 (de) * 1976-06-25 1978-01-19 Werbetronic Ag Mechanische druckknopfeinrichtung zur speicherung mehrerer positionen, jede fuer sich, durch eigenen druckknopf waehlbar, eines beweglichen elementes in bezug auf einen ortsfesten traeger
DE3015292C2 (de) * 1980-04-21 1985-10-17 Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt Drucktastenaggregat

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3234800A (en) * 1961-04-28 1966-02-15 Motorola Inc Pushbutton construction

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3234800A (en) * 1961-04-28 1966-02-15 Motorola Inc Pushbutton construction

Also Published As

Publication number Publication date
DE1541528B2 (de) 1971-12-16
GB1203296A (en) 1970-08-26
DE1541528A1 (de) 1970-02-26
ES345347A1 (es) 1969-01-01

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