US3763332A - Dial pointer assembly for a radio/tape player - Google Patents

Dial pointer assembly for a radio/tape player Download PDF

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Publication number
US3763332A
US3763332A US00252882A US3763332DA US3763332A US 3763332 A US3763332 A US 3763332A US 00252882 A US00252882 A US 00252882A US 3763332D A US3763332D A US 3763332DA US 3763332 A US3763332 A US 3763332A
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US
United States
Prior art keywords
pointer
door
radio
rod member
bracket
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
US00252882A
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English (en)
Inventor
W Race
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of US3763332A publication Critical patent/US3763332A/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
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/02—Indicating arrangements
    • H03J1/04—Indicating arrangements with optical indicating means
    • H03J1/041—Pointers, markers, or the like, for tuning dials; Folding dials

Definitions

  • ABSTRACT A radio dial-door for a combination radio/tape player device has spaced front and rear walls to form a channel therebetween. The door is mounted at opposite ends on a rod extending therebetween. A dial pointer is mounted on the rod for pivotal and longitudinal movement thereon. A bracket also mounted on the rod for longitudinal movement therealong captures the pointer, the latter thereby being movable with the bracket along the rod. A cord attached to the bracket and a tuner control shaft of the radio portion of the device, moves the bracket and pointer with respect to indicia on the door in response to the rotation of the shaft, to indicate the radio frequency setting to which the radio is tuned.
  • This invention relates generally to combination radio and tape player devices for use in automobile and the like vehicles, and more particularly to such devices including a swingably mounted door serving as a covering for the tape cartridge receiving opening and a dial as- I sembly for the radio receiver.
  • the dial pointer is mounted on a movable string or wire member behind the door and pivots or swings about the string upon opening and closing the door upon insertion and removal of a tape cartridge therethrough. While this arrangement functions satisfactorily for the most part, the dial pointer has a tendency to bounce" on the string and tap against the rear surface of the door when jarred, etc. This occur rence, while not causing damage to the device, can be annoying to occupants of the automobile in which the device is mounted. Furthermore it is possible that the pointer may be shifted along the string due to excessive jarring.
  • a combination radioltape playerdevice for use in an automobile or the like vehicle, including a swingable door member covering the cartridge receiving opening of the tape player portion thereof and serving as a dial for the radio portion of the unit including a movable pointer member, which overcomes the drawbacks of prior art arrangements.
  • a preferred embodiment of a swingable, radio dial door member for a combination radio/tape player device includes a door member having from and rear wall members mounted in spaced relation with respect to each other to provide a channel therebetween.
  • the front wall member is transparent and the rear member includes indicia thereon, viewable through the front wall member for indicating a series of radio frequency settings.
  • the door member is mounted over the cartridge receiving opening of the cartridge tape player portion of the device, at opposite ends thereof for pivotal movement about a rod, the latter of which is supported at the ends in suitable mounting members.
  • a pointer mounted on the rod for sliding and pivotal movement extends freely into the channel between the front and rear wall members.
  • a bracket also mounted on the rod for movement therealong, is coupled to the pointer.
  • a wire, or cord coupled to the tuner-control shaft of the radio portion of the device is attached to the bracket to move the latter and thus the pointer to various positions with respect to the dial indicia.
  • FIG. 1 is a perspective view of a combination radio/- tape player device incorporating a dial-door according to the invention
  • FIG. 2 is a partially exploded perspective view of the dial-door and radio tuner control shaft mechanism of the radio/tape player device of FIG. 1;
  • FIG. 3 is a sectional view of the dial-door of FIG. 2 taken along the line 3-3.
  • FIG. 1 a combination radio/tape player device 10 including the usual radio signal receiving means, a portion of which is illustrated by block 11 (FIG. 2) and tape driving and playing instrumentalities (not shown), and having a cartridge receiving tunnel therein and an entrance l2 thereto in a front wall 14.
  • Radio/tape player control knobs l6, 18, are also located on wall 14 adjacent entrance l2.
  • a dial-door 20 mounted in entrance 12 is a dial-door 20 according to the invention.
  • the door covers the entrance 12 of the tape cartridge receiving tunnel when no cartridge is inserted thereinto, and also serves as a dial scale and indicator assembly for the radio portion of the device when the latter is in the radio mode.
  • the dial-door 20 includes a front wall 22 having a center window portion 24 of transparent material, such as, for example, plastic or the like, to permit one viewing the door from the front to see the dial pointer 26 mounted behind the front wall.
  • a rear wall 28 is joined to the front wall 22 at outwardly extending end portions, such as 30, of the latter wall. The walls are separated to provide a channel 32 of a predetermined width therebetween in which dial pointer 26, dimensioned accordingly, is received.
  • the end pieces include aligned apertures 38, 40, respectively, therein.
  • a mounting rod 42 having an outside diameter slightly smaller than the diameter of the apertures 38, 40, is received therein.
  • Ends 44, 46 of the rod member extend beyond the end pieces 34, 36, respectively of door and are received in apertures 48, 50, respectively, of a pair of mounting tabs 52, 54 of the radio/tape player chassis 56 (FIG. 2).
  • the door 20 is mounted for swinging movement on rod member 42 in the entrance of the cartridge receiving tunnel.
  • a spring member 58 mounted on rod member 42 provides a force against the rear surface of wall 22 of the door 20 to bias the door to a closed position (FIG. 1) in the entrance.
  • a pointer carrying bracket 60 formed of a single piece of sheet metal or other suitable material, folded over to provide a pair of separated tabs 62, 64 joined by a top piece 66, is mounted on rod member 42 for sliding movement therealong.
  • the rod is received in aligned apertures, such as 68, in the tabs.
  • Pointer 26 includes an enlarged end portion 70, herein taking the form of a circular cylinder. End 70 includes an aperture therein through which rod member 42 is received. The end 70 is captured between tabs 62, 64 of bracket 60. Pointer 26 is pivotal about rod member 42 while bracket 60 is held from pivotal movement by a tuning cord 70 attached thereto. Cord 72 is received beneath finger-like projections 74 formed along wall 66 of bracket 60. The tabs are pressed downwardly onto cord 72 to press the cord against wall 66, thereby securing bracket 60 to the cord at a selected position thereon. The cord, which extends between mounting posts 76, 78, also is looped about the frequency or tuner control shaft 80 of the radio receiver portion of radio/tape player device 10.
  • cord 72 is moved in either of the directions indicated by the arrows shown, to in turn move bracket 60 attached thereto along rod member 42.
  • the pointer 26 being mounted on rod member 42 between tabs 62, 64 of bracket 60, is carried along the rod to different positions corresponding to radio frequency settings to which the radio receiver is tuned.
  • indicia specifically numbers 82 (FIG. 1)
  • numbers 82 are printed along the inner surface of rear wall 28 of the door 20 and can be seen through the transparent window portion 24 of front wall 22.
  • the series of numbers 82 cooperates with the movable pointer 26 to indicate the frequency to which the radio signal receiving means 11 of the radio/tape player device is tuned. While the numbers herein are printed on the rear wall of door 20, they may if desired, be printed on the front wall so that pointer 26 moves behind the numbers.
  • the radio receiver portion of the radio/tape player device 10 one may tune the radio signal receiving means 11 thereof by rotating knob 16. Rotation of the knob in turn rotates shaft 80 to move cord 72 along a path defined by the mounting posts including posts 76, 78.
  • the pointer bracket 60 being attached to the cord, moves with the latter to drive pointer 26 along rod member 42 to different positions with respect to indicia 82 representing radio frequency settings.
  • the door 20 Upon insertion of a cartridge into the tape player tunnel during operation of the radio/tape player device to the tape player mode, the door 20 is engaged and pivoted about rod member 42 inwardly into the tunnel against the force of spring 58. Dial pointer 26 extending into channel 32 of door 20, is pivoted also about rod member 42. Bracket 16, however, remains as shown in FIG. 2. Removal of the cartridge returns the door and pointer to their original positions.
  • a combination radio and tape player device including in combination: tunable radio signal receiving means, tape driving and playing means, a cartridge receiving tunnel having an entrance through which a cartridge is' insertable into said tunnel, a rod member mounted near said entrance and extending the width thereof, a door being mounted at ooposite ends thereof on said rod member for swinging movement in said entrance between a closed position over said entrance and an open position whereby the door is swung into said tunnel, said door including means for indicating the frequency to which the radio signal receiving means are tuned, means for moving said door to a closed position over said entrance in the absence of a tape cartridge in said tunnel, said door having a front and rear wall joined together in spaced relation with respect to each other to form a longitudinal channel therebetween, said front wall including a transparent portion, one of said walls including a series of numbers provided thereon designating frequency settings to which said radio signal receiving means can be tuned, a pointer having an aperture in one end thereof through which said rod member extends for mounting said pointer pivotally thereon, said pointer extending between said

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US00252882A 1972-05-12 1972-05-12 Dial pointer assembly for a radio/tape player Expired - Lifetime US3763332A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25288272A 1972-05-12 1972-05-12

Publications (1)

Publication Number Publication Date
US3763332A true US3763332A (en) 1973-10-02

Family

ID=22957932

Family Applications (1)

Application Number Title Priority Date Filing Date
US00252882A Expired - Lifetime US3763332A (en) 1972-05-12 1972-05-12 Dial pointer assembly for a radio/tape player

Country Status (5)

Country Link
US (1) US3763332A (en, 2012)
JP (1) JPS5524288B2 (en, 2012)
GB (1) GB1356240A (en, 2012)
HK (1) HK1078A (en, 2012)
IT (1) IT994051B (en, 2012)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307327A (en) * 1992-12-24 1994-04-26 Chrysler Corporation Mounting assembly for automotive audio components
US6921141B1 (en) * 2002-06-13 2005-07-26 Crp Enterprises Water resistant instrument enclosure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1243731A (en) * 1983-08-29 1988-10-25 Hideo Honma Portable tape player with radio in lid

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536123A (en) * 1945-04-19 1951-01-02 Colonial Radio Corp Radio-phonograph combination
US2579684A (en) * 1948-01-30 1951-12-25 Hartford Nat Bank & Trust Co Station-indicating system for radiogramophones comprising mechanism for allowing the turntable to move outwards
US3536859A (en) * 1967-02-08 1970-10-27 Tenna Corp Combination radio and tape player system with integrated controls

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939310U (en, 2012) * 1972-07-12 1974-04-06
JPS5239438Y2 (en, 2012) * 1974-07-10 1977-09-06

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536123A (en) * 1945-04-19 1951-01-02 Colonial Radio Corp Radio-phonograph combination
US2579684A (en) * 1948-01-30 1951-12-25 Hartford Nat Bank & Trust Co Station-indicating system for radiogramophones comprising mechanism for allowing the turntable to move outwards
US3536859A (en) * 1967-02-08 1970-10-27 Tenna Corp Combination radio and tape player system with integrated controls

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307327A (en) * 1992-12-24 1994-04-26 Chrysler Corporation Mounting assembly for automotive audio components
US6921141B1 (en) * 2002-06-13 2005-07-26 Crp Enterprises Water resistant instrument enclosure

Also Published As

Publication number Publication date
JPS5524288B2 (en, 2012) 1980-06-27
JPS4949502A (en, 2012) 1974-05-14
IT994051B (it) 1975-10-20
GB1356240A (en) 1974-06-12
HK1078A (en) 1978-01-13

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