US3611150A - Radio receiver housing forming a continuous shape with control knobs - Google Patents

Radio receiver housing forming a continuous shape with control knobs Download PDF

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Publication number
US3611150A
US3611150A US733586A US3611150DA US3611150A US 3611150 A US3611150 A US 3611150A US 733586 A US733586 A US 733586A US 3611150D A US3611150D A US 3611150DA US 3611150 A US3611150 A US 3611150A
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United States
Prior art keywords
housing
knobs
axis
knob
radio receiver
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Expired - Lifetime
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US733586A
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English (en)
Inventor
Hermann Martin Timm
Gunter Wolf
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Individual
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Individual
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Publication date
Priority claimed from DE19671591679 external-priority patent/DE1591679A1/de
Application filed by Individual filed Critical Individual
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Publication of US3611150A publication Critical patent/US3611150A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/08—Constructional details, e.g. cabinet

Definitions

  • This invention relates to radio receivers, and particularly to housings for radio receivers and associated elements.
  • the visible parts of a radio receiver usually consist mainly of a housing and of control knobs mounted on the housing and connected by rotatable shafts to circuit elements in the housing, such as variable capacitors, switches, and otentiometers.
  • the knobs often detract from the appearance of the housing, particularly in small transistor radios in which the conventional knobs cannot be reduced in size in the same ratio at which the housing is reduced when transistors replace electron tubes if the adjusted positions of the knobs are to be read from a scale with adequate accuracy.
  • the object of the invention is an improvement in the shape of housings and control knobs for radio receivers, particularly transistor radios, which permits the positions of the control knobs to be read precisely even on a very small radio without encumbering the housing with conspicuously projecting knobs.
  • the invention provides a housing of the type described with an edge portion of circular cross section per pendicular to the axis of rotation of one of the control shafts.
  • the control knob mounted on the shaft also has an edge portion of circular cross section perpendicular to this axis, and the edge portions of the housing and of the control knob are axially contiguous and of substantially the same diameter.
  • the edge portions are symmetrical relative to the axis, at least the edge portions jointly have the shape of a body of revolution about the axis, and the knob need not be conspicuous, regardless of its actual dimensions.
  • a smooth transition between the knob and the housing proper is beneficial, and the surfaces of the edge portions should be jointly defined, therefore, by a continuous function, such as a straight line or a conic.
  • FIG. I shows a spherical transistor radio of the invention in elevation
  • FIG. 2 shows a cylindrical radio of the invention in a perspective view
  • FIG. 3 shows a modified spherical radio in plan view.
  • FIG. 4 shows a modification of the radio of FIG. 1 in a corresponding view
  • FIG. 5 illustrates the radio of FIG. 1 in partly sectional elevation.
  • FIG. 1 there is seen a small, self-contained table radio whose tuning knob is mounted on the housing 2 for rotation about a common axis 5 with the knob 3 which operates an on-off switch and the potentiometer of a volume control in the housing 2 in a conventional manner, the electronic circuit elements not being seen.
  • the knobs l, 3 and the housing 2 jointly form a sphere which is supported on an annular stand 4 fixed to the housing 2.
  • the knobs thus are spherical segments of one base, and the housing 2 is a spherical segment of two bases.
  • the axially contiguous edge portions of the housing and of each knob are of circular cross section perpendicular to the axis 5 and of the same diameter.
  • the outer surfaces of the knobs ll, 3 and of the housing 2 are defined by a circle which is a continuous function, and more specifically a conic.
  • the relative angular position of the knobs 1, 3 and of the housing 2 may be indicated by index marks (not shown) along the edge portions, and the diameter of a circular scale so formed may be chosen by suitably locating the base planes which separate the housing from the knobs. Even if the tuning knob, for example, were enlarged to constitute one-half of the sphere formed by the housing and the: knobs, and the scale were as long as it can be made on a housing of the given shape, the knob would not be conspicuous.
  • FIG. 5 partly illustrates the internal structure of the radio illustrated in FIG. 1.
  • the knobs l and 3 are hollow spherical segments and of uniformly small wall thickness, except for central reinforcing bosses 8, 9 which eonformingly receive the operating shafts 6, 7 of the aforementioned, nonillustrated capacitor and potentiometer with a snap fit or friction fit, as is conventional.
  • the housing 2 is open along the flat ibases so that batteries and other elements, not themselves shown, are readily accessible for servicing or replacement when the knobs are pried from their shafts by a knife or similar thin instrument capable of being inserted between the edge portions of the knobs and of the housing.
  • knobs l1, 112 are identical cups of cylindrical shape and are coaxially attached to a tubular housing 13 which is cylindrical and of the same diameter.
  • the two knobs 14, I5 and the associated housing of the receiver illustrated in FIG. 3 jointly form a sphere substantially as discussed with reference to FIG. 1, but the axes of rotation of the two knobs are at right angles to each other.
  • the knob 16 is a spherical segment of one base and controls the tuning capacitor.
  • the stand 17 is a cylindrical disc which may be rotated on the housing 18 about a common axis with the knob 116 to control the current supply and the sound volume, as described above.
  • a radio receiver having a housing, a plurality of electronic circuit elements in said housing, a plurality of actuating shafts attached to respective ones of said elements in said housing and projecting outward of said housing for turning the attached elements about the axes of said shafts and a control knob on the outwardly projecting portion of one of said shafts, the improvement in said housing and in said knob which comprises:
  • said housing having an edge portion of circular cross section perpendicular to the axis of said one shaft;
  • control knob having an edge portion of circular cross section perpendicular to said axis of said one shaft;
  • said edge portions of said housing and of said control knob having axially contiguous, coaxial, cylindrical, outer surfaces of substantially the same diameter.
  • said housing and said control knob jointly having the shape of a body of revolution about said one axis.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mechanical Control Devices (AREA)
US733586A 1967-06-02 1968-05-31 Radio receiver housing forming a continuous shape with control knobs Expired - Lifetime US3611150A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671591679 DE1591679A1 (de) 1967-06-02 1967-06-02 Radiogehaeuse

Publications (1)

Publication Number Publication Date
US3611150A true US3611150A (en) 1971-10-05

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ID=5680179

Family Applications (1)

Application Number Title Priority Date Filing Date
US733586A Expired - Lifetime US3611150A (en) 1967-06-02 1968-05-31 Radio receiver housing forming a continuous shape with control knobs

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US (1) US3611150A (cs)
FR (1) FR1567591A (cs)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3546913A (en) * 1967-11-13 1970-12-15 Mesta Machine Co Method and means for obtaining high modulus rolling mills
USD254569S (en) 1978-05-16 1980-03-25 Biosig Inc. Housing for a portable hand-held, digital, heart rate indicator device
USD396860S (en) 1997-03-10 1998-08-11 Sony Corporation Housing for a radio receiver and an audio data decoder
USD417869S (en) 1997-09-11 1999-12-21 Sony Corporation Electronic device
USD457510S1 (en) 1998-04-24 2002-05-21 Honeywell International, Inc. Enclosure for information recorder
USD531615S1 (en) * 2005-07-13 2006-11-07 Coby Electronics Corporation Pocket radio
USD534149S1 (en) * 2005-10-11 2006-12-26 Paul Griffin Radio transmitter which is connectable to a computer or an MP3 player device
USD539782S1 (en) * 2005-07-13 2007-04-03 Coby Electronics Corporation Pocket radio
USD608353S1 (en) * 2009-04-24 2010-01-19 Lenntek Corporation Inline microphone for earphone
USD772204S1 (en) * 2015-11-03 2016-11-22 Cleer Gear Llc Wireless earpiece with charging capsule
USD860165S1 (en) * 2017-12-28 2019-09-17 Sony Corporation Earphone
USD870694S1 (en) * 2017-12-28 2019-12-24 Sony Corporation Earphone
USD871365S1 (en) * 2017-12-28 2019-12-31 Sony Corporation Earphone
USD993225S1 (en) * 2021-11-12 2023-07-25 Freedman Electronics Pty Ltd Microphone
USD1069747S1 (en) * 2022-08-26 2025-04-08 Lg Electronics Inc. Digital audio player
USD1069746S1 (en) * 2022-08-26 2025-04-08 Lg Electronics Inc. Digital audio player

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2514670A (en) * 1947-02-25 1950-07-11 Rabinowicz Mechal Wireless receiving apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2514670A (en) * 1947-02-25 1950-07-11 Rabinowicz Mechal Wireless receiving apparatus

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3546913A (en) * 1967-11-13 1970-12-15 Mesta Machine Co Method and means for obtaining high modulus rolling mills
USD254569S (en) 1978-05-16 1980-03-25 Biosig Inc. Housing for a portable hand-held, digital, heart rate indicator device
USD396860S (en) 1997-03-10 1998-08-11 Sony Corporation Housing for a radio receiver and an audio data decoder
USD417869S (en) 1997-09-11 1999-12-21 Sony Corporation Electronic device
USD457510S1 (en) 1998-04-24 2002-05-21 Honeywell International, Inc. Enclosure for information recorder
USD531615S1 (en) * 2005-07-13 2006-11-07 Coby Electronics Corporation Pocket radio
USD539782S1 (en) * 2005-07-13 2007-04-03 Coby Electronics Corporation Pocket radio
USD534149S1 (en) * 2005-10-11 2006-12-26 Paul Griffin Radio transmitter which is connectable to a computer or an MP3 player device
USD608353S1 (en) * 2009-04-24 2010-01-19 Lenntek Corporation Inline microphone for earphone
USD772204S1 (en) * 2015-11-03 2016-11-22 Cleer Gear Llc Wireless earpiece with charging capsule
USD860165S1 (en) * 2017-12-28 2019-09-17 Sony Corporation Earphone
USD870694S1 (en) * 2017-12-28 2019-12-24 Sony Corporation Earphone
USD871365S1 (en) * 2017-12-28 2019-12-31 Sony Corporation Earphone
USD912650S1 (en) 2017-12-28 2021-03-09 Sony Corporation Earphone
USD993225S1 (en) * 2021-11-12 2023-07-25 Freedman Electronics Pty Ltd Microphone
USD1069747S1 (en) * 2022-08-26 2025-04-08 Lg Electronics Inc. Digital audio player
USD1069746S1 (en) * 2022-08-26 2025-04-08 Lg Electronics Inc. Digital audio player

Also Published As

Publication number Publication date
FR1567591A (cs) 1969-05-16

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