US3416388A - Push button retention and release mechanism - Google Patents

Push button retention and release mechanism Download PDF

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US3416388A
US3416388A US608368A US60836867A US3416388A US 3416388 A US3416388 A US 3416388A US 608368 A US608368 A US 608368A US 60836867 A US60836867 A US 60836867A US 3416388 A US3416388 A US 3416388A
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push button
holding beam
push
operative
depressed
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US608368A
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Piotrowski Tadeus
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US Philips Corp
North American Philips Co Inc
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US Philips Corp
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C7/00—Input mechanisms
    • G06C7/02—Keyboards
    • G06C7/04—Interlocking devices, e.g. between keys
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/10—Manually-operated control; Solenoid-operated control
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/72—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard wherein the switch has means for limiting the number of operating members that can concurrently be in the actuated position
    • H01H13/74—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard wherein the switch has means for limiting the number of operating members that can concurrently be in the actuated position each contact set returning to its original state only upon actuation of another of the operating members
    • 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
    • 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
    • H03J5/24—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 a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/26—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 a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection operated by hand
    • H03J5/32—Stationary tuning circuits or elements selected by push-button
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20207—Multiple controlling elements for single controlled element
    • Y10T74/20238—Interlocked
    • Y10T74/20244—Push button

Definitions

  • the push button switch mechanism disclosed comprises a series of selectively operative push buttons which switch on and operate a particular device while locked in a depressed position and a release push button that when depressed mechanically releases said operative push buttons from the locked position and thereby discontinues the operation of said device.
  • the series of operative push buttons are typified by a spring biased push button which is movably retained in a first support plate and which lockingly engages a holding beam when depressed through the cooperation of a catch on the push button and a spring bias mechanism coacting with the holding beam and the push button.
  • the release push button coacts with the holding beam to return the beam to its original position and thereby release the locked push buttons.
  • the invention relates to a push button mechanism which is generally applicable to recording and play-back apparatus.
  • it is often desirable to lock one or more push button elements into operative position and to restrict the movement of the remaining push buttons so that these latter buttons cannot be operated without releasing the already engaged push buttons.
  • a further object of the invention is to provide a push button unit wherein the remaining push buttons may not be activated after the initial push buttons have been depressed and lockingly engaged.
  • Another object of the invention is to provide a push button having a novel mechanism for releasing the lockingly engaged push buttons.
  • the invention also provides a push button mechanism in which the functions of holding, locking and releasing the keys thereof are achieved in a simple and economic manner. This mechanism also ensures reliable operation over a sustained period of use.
  • a push button mechanism in which at least one push button can be held in an operating position by a spring biased holding beam.
  • the push buttons include a surface which cooperates with the holding beam whereby depression of the push button moves the holding beam in a direction normal to the movement of the push button and into locking engagement with a catch element on the push button.
  • a spring biasing mechanism attached to the holding beam causes the holding beam to be biased in the engagement position.
  • An auxiliary push button for releasing the lockingly engaged push buttons is also part of the push button mechanism.
  • This release push button engages the holding beam while it is lockingly engaged with at least one operatively depressed push button and forcibly returns the holding beam, by overcoming the biasing engagement force, into its rest position and thereby releases the depressed push button.
  • the push buttons are spring biased with the biasing force acting to return the push buttons to an inoperative position.
  • FIGURE 1 is a cross-sectional view of a push button unit in accordance with one embodiment of the invention.
  • FIGURE 2 is a cross-sectional view of a push button mechanism in accordance with a second embodiment of the invention.
  • the mechanism there shown comprises a support member 1 in which the push buttons are arranged so as to be movable against the action of the springs 2.
  • Guide members 3 are located at each end of the support 1.
  • a holding beam 4 is in movable engagement with the guide members 3.
  • a tension spring 5 is fastened to one end of the holding beam and to a rigid portion of the device in which the push button mechanism or unit is attached and normally tends to move the beam 4 to the right, i.e. in the direction of the arrow 20 and thereby determines the rest position of the holding beam 4.
  • Recesses 6 within the holding beam 4 receive the control elements of the push buttons.
  • the series of engaging push buttons are duplicates and are generally shown in FIGURE 1 as operative push button 8.
  • the push button 8 is constructed with a catch element 10 such that the button in the depressed position will be fixedly held in that position by engagement of the catch 10 and the edge of the recess 6 on the holding beam 4.
  • Each of the buttons 8 is appropriately mechanically connected to the element (i.e. electric switch etc. not shown) to be activated thereby. This may be effected for example, by a suitable mechanical linkage (not shown) engaging the slot 21 of the element 10.
  • a resilient or biasing mechanism 11 Adjacent the edge of the recess 6 opposite the edge which engages the catch 10 and fastened to the holding beam 4 is a resilient or biasing mechanism 11.
  • This mechanism includes a guided slide element 13 which is biased by a compressing spring 12.
  • the slide 13 is movable to a limited extent as determined by the extent of a slot 22 in a direction parallel to the longitudinal axis of the holding beam and is slidably engageable with the inclined surface 14 on the operative push button control element 7. Depressing the operative push button 8 causes the inclined surface 14 to engage the end of slide 13 and move it to the left as shown in FIGURE 1 thereby compressing the spring 12.
  • the tension spring 5 and the compression spring 12 act in opposition.
  • Spring 12 is constructed so that when compressed a predetermined amount, the force of compression will exceed the restraint applied by the tension spring 5 and thereby cause the holding beam to move towards the left.
  • the operative push button 8 is shown in a partially depressed position. Further depression will compress the spring 12 causing movement of the holding beam in the manner described above.
  • the catch 10 on the control element 7 passes through the opening 6, the holding beam will move into overlying locking engagement with the catch 10 with the spring 12 biasing the holding beam in this position.
  • the push button upon releasing the push button it will remain depressed and in locked engagement with holding beam 4.
  • One or more push buttons 8 can be depressed; however, when a plurality of the buttons are to be depressed, depression must occur simultaneously in order to properly engage the holding beam. Once a push button has been depressed and has lockingly engaged the holding beam, no additional push buttons may be depressed without release of the originally locked buttons, because the holding beam 4 is prevented from traveling to the left (i.e. against the direction of the arrow 20) by the biasing mechanism which forces the holding beam into engagement with the push button to an extent sufiicient to allow the passage of the said additional button through the holding beam 4.
  • a single push button 9 is incorporated in the push button unit for releasing one or more of the depressed, locked operative push buttons 8. Release is effected by moving the holding beam 4 towards its original rest position. This is accomplished by opposing the biasing force applied by the biasing mechanism 11.
  • the control element 7 of push button 9 has an inclined cam surface 14a which engages the edge 15 of the opening 6 when the release push button is depressed. The engagement between the cam surface 14a and edge 15 causes the holding beam 4 to move towards the right or to the original rest position of the holding beam 4. This movement causes the release of the catch 10 by the holding beam 4 wherein the compressed spring 2 will cause the push button 8 to return to its inoperative position.
  • the holding beam 4 remains permanently displaced once one or more push buttons 8 have been depressed.
  • Extension element 16 at the base of the catch 10 will abut the upper surface of the holding beam 4 if actuation of an additional operative push button 8 should be attempted after at least one operative push button is in depressed locked engagement. Therefore, other push buttons 8 can be depressed only if the holding beam 4 has been returned to its original rest position by means of the release push button 9. This is of particular importance in recording and play-back apparatus in which the switching from one operation or mode of operation to a second operation or mode must be accomplished via a rest position.
  • FIGURE 2 uses the same reference characters as FIGURE 1 for denoting similar components.
  • two of the operative push buttons 8 and the one release push button 9 are shown.
  • One of said push buttons 8 being shown in the non-depressed position and the second push button 8 being shown in the depressed and locked position.
  • a resilient mechanism 11 is attached to the holding plate 4.
  • Leaf springs 17 are attached to the edge of the opening 6 opposite the edge which engages the catch 10. The springs are inclined at an acute angle below the holding beam 4 such that depressing of the operative push button 8 will cause the cam surface 14 of the control element 7 to engage the spring 17.
  • the cam surface 14 in this embodiment is the narrow side of the control element 7 opposite the catch 10.
  • the holding beam 4 will move to the left as shown in FIGURE 2. This movement of the holding beam 4 will cause the beam to overlay the catch and thereby lock the push button 8 in the depressed position. Again, the other non-depressed push buttons 8 are blocked by the interference between the holding beam 4 and the extension 16 of the control element 7. If several push buttons 8 are to be depressed this must be accomplished simultaneously.
  • the holding beam in this embodiment comprises an inclined projection 18 with which control element 7 of the release push button 9 cooperates.
  • the holding beam is again moved in the direction of its rest position until the depressed push buttons are released and the corresponding resilient elements 17 are relaxed whereby the holding beam returns to its rest position under the action of the tension spring 5.
  • the push buttons may be sliding push buttons or swinging push buttons, several release push buttons may be provided of which some have separate holding devices and the like.
  • the locking member may also be formed by the lower side of the control elements or the resilient elements may be arranged on the control element instead of on the holding beam.
  • the control element is to be understood to include also members which can be moved in a direction other than the direction in which the push buttons are operated.
  • a push button mechanism for recording and playback apparatus comprising a series of operative push buttons, support means for retaining said push but-tons, means connected to said support means for engaging an operative push button in an actuated position, first means attached to said engagement means for biasing said engagement means to a non-engaging position relative to said operative push button, catch means on said operative push button adapted to lockingly engage said engagement means when said operative push button is actuated, second means attached to said engagement means and upon actuation by said operative push button normally biasing said engagement means to a latching position relative to said operative push button against the action of said first biasing means thereby to engage said catch means and engaging means, and release push button means actuating said engagement means to override said second biasing means thereby to disengage said engagement means from the catch means of said operative push button.
  • a ush button mechanism according to claim 1 wherein said at least one operative push button includes a control element having the catch means attached thereon, said engagement means comprising a holding beam positioned normal to the longitudinal axis of said operative push button and in spaced relation from said catch means, one opening in said holding beam for each operative push button to receive said catch means, said second biasing means being positioned adjacent one edge of said openings, whereby actuation of said push button of said operative push button causes said control element to engage said second biasing means thereby causing said holding beam to move from its normally biased positioned into locking engagement with said catch means.
  • a push button mechanism according to claim 1 wherein said operative push button includes means to preclude actuation of the remaining operative push buttons after at least one operative push button has been actuated and lockingly engaged said engagement means.
  • a push button mechanism according to claim 2 wherein said release means comprises a release push button having cam means thereon, said release push button being retained in said support means, and cam engaging means on said holding beam whereby actuation of said release push button will move said cam means into engagement with said cam engaging means thereby forcing the holding beam out of locking engagement with said operative push button.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Push-Button Switches (AREA)
  • Sheet Holders (AREA)
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  • Stringed Musical Instruments (AREA)

Description

1968 T. PIOTROWSKI 3,
PUSH BUTTON RETENTION AND RELEASE MECHANISM Filed Jan. 10, 1967 INVENTOR. TADEUS momowsm AGEN T United States Patent 0 3,416,388 PUSH BUTTON RETENTION AND RELEASE MECHANISM Tadeus Piotrowski, Vienna, Austria, assignor to North American Philips Co., Inc., New York, N.Y., a corporation of Delaware Filed Jan. 10, 1967, Ser. No. 608,368 Claims priority, application Austria, Jan. 14, 1966, A 327/66 4 Claims. (Cl. 74-483) ABSTRACT OF THE DISCLOSURE The push button switch mechanism disclosed comprises a series of selectively operative push buttons which switch on and operate a particular device while locked in a depressed position and a release push button that when depressed mechanically releases said operative push buttons from the locked position and thereby discontinues the operation of said device. The series of operative push buttons are typified by a spring biased push button which is movably retained in a first support plate and which lockingly engages a holding beam when depressed through the cooperation of a catch on the push button and a spring bias mechanism coacting with the holding beam and the push button. The release push button coacts with the holding beam to return the beam to its original position and thereby release the locked push buttons.
The invention relates to a push button mechanism which is generally applicable to recording and play-back apparatus. In such apparatus, it is often desirable to lock one or more push button elements into operative position and to restrict the movement of the remaining push buttons so that these latter buttons cannot be operated without releasing the already engaged push buttons.
It is an object of this invention to provide a simple position locking mechanism for push button units.
A further object of the invention is to provide a push button unit wherein the remaining push buttons may not be activated after the initial push buttons have been depressed and lockingly engaged.
Another object of the invention is to provide a push button having a novel mechanism for releasing the lockingly engaged push buttons.
The invention also provides a push button mechanism in which the functions of holding, locking and releasing the keys thereof are achieved in a simple and economic manner. This mechanism also ensures reliable operation over a sustained period of use.
In accordance with the invention, the foregoing objects are achieved by a push button mechanism in which at least one push button can be held in an operating position by a spring biased holding beam. The push buttons include a surface which cooperates with the holding beam whereby depression of the push button moves the holding beam in a direction normal to the movement of the push button and into locking engagement with a catch element on the push button. A spring biasing mechanism attached to the holding beam causes the holding beam to be biased in the engagement position.
An auxiliary push button for releasing the lockingly engaged push buttons is also part of the push button mechanism. This release push button engages the holding beam while it is lockingly engaged with at least one operatively depressed push button and forcibly returns the holding beam, by overcoming the biasing engagement force, into its rest position and thereby releases the depressed push button. The push buttons are spring biased with the biasing force acting to return the push buttons to an inoperative position.
r 3,416,388 Ice Patented Dec. 17, 1968 The invention will be described in greater detail with reference to the accompanying drawing, in which:
FIGURE 1 is a cross-sectional view of a push button unit in accordance with one embodiment of the invention;
FIGURE 2 is a cross-sectional view of a push button mechanism in accordance with a second embodiment of the invention.
Referring now to FIGURE 1, the mechanism there shown comprises a support member 1 in which the push buttons are arranged so as to be movable against the action of the springs 2. Guide members 3 are located at each end of the support 1. A holding beam 4 is in movable engagement with the guide members 3. A tension spring 5 is fastened to one end of the holding beam and to a rigid portion of the device in which the push button mechanism or unit is attached and normally tends to move the beam 4 to the right, i.e. in the direction of the arrow 20 and thereby determines the rest position of the holding beam 4. Recesses 6 within the holding beam 4 receive the control elements of the push buttons. The series of engaging push buttons are duplicates and are generally shown in FIGURE 1 as operative push button 8. The push button 8 is constructed with a catch element 10 such that the button in the depressed position will be fixedly held in that position by engagement of the catch 10 and the edge of the recess 6 on the holding beam 4. Each of the buttons 8 is appropriately mechanically connected to the element (i.e. electric switch etc. not shown) to be activated thereby. This may be effected for example, by a suitable mechanical linkage (not shown) engaging the slot 21 of the element 10.
Adjacent the edge of the recess 6 opposite the edge which engages the catch 10 and fastened to the holding beam 4 is a resilient or biasing mechanism 11. This mechanism includes a guided slide element 13 which is biased by a compressing spring 12. The slide 13 is movable to a limited extent as determined by the extent of a slot 22 in a direction parallel to the longitudinal axis of the holding beam and is slidably engageable with the inclined surface 14 on the operative push button control element 7. Depressing the operative push button 8 causes the inclined surface 14 to engage the end of slide 13 and move it to the left as shown in FIGURE 1 thereby compressing the spring 12. The tension spring 5 and the compression spring 12 act in opposition. Spring 12 is constructed so that when compressed a predetermined amount, the force of compression will exceed the restraint applied by the tension spring 5 and thereby cause the holding beam to move towards the left.
In FIGURE 1, the operative push button 8 is shown in a partially depressed position. Further depression will compress the spring 12 causing movement of the holding beam in the manner described above. When the catch 10 on the control element 7 passes through the opening 6, the holding beam will move into overlying locking engagement with the catch 10 with the spring 12 biasing the holding beam in this position. Thus, upon releasing the push button it will remain depressed and in locked engagement with holding beam 4.
One or more push buttons 8 can be depressed; however, when a plurality of the buttons are to be depressed, depression must occur simultaneously in order to properly engage the holding beam. Once a push button has been depressed and has lockingly engaged the holding beam, no additional push buttons may be depressed without release of the originally locked buttons, because the holding beam 4 is prevented from traveling to the left (i.e. against the direction of the arrow 20) by the biasing mechanism which forces the holding beam into engagement with the push button to an extent sufiicient to allow the passage of the said additional button through the holding beam 4.
A single push button 9 is incorporated in the push button unit for releasing one or more of the depressed, locked operative push buttons 8. Release is effected by moving the holding beam 4 towards its original rest position. This is accomplished by opposing the biasing force applied by the biasing mechanism 11. The control element 7 of push button 9 has an inclined cam surface 14a which engages the edge 15 of the opening 6 when the release push button is depressed. The engagement between the cam surface 14a and edge 15 causes the holding beam 4 to move towards the right or to the original rest position of the holding beam 4. This movement causes the release of the catch 10 by the holding beam 4 wherein the compressed spring 2 will cause the push button 8 to return to its inoperative position.
The holding beam 4 remains permanently displaced once one or more push buttons 8 have been depressed. Extension element 16 at the base of the catch 10 will abut the upper surface of the holding beam 4 if actuation of an additional operative push button 8 should be attempted after at least one operative push button is in depressed locked engagement. Therefore, other push buttons 8 can be depressed only if the holding beam 4 has been returned to its original rest position by means of the release push button 9. This is of particular importance in recording and play-back apparatus in which the switching from one operation or mode of operation to a second operation or mode must be accomplished via a rest position.
The embodiment of FIGURE 2 uses the same reference characters as FIGURE 1 for denoting similar components. In this particular embodiment two of the operative push buttons 8 and the one release push button 9 are shown. One of said push buttons 8 being shown in the non-depressed position and the second push button 8 being shown in the depressed and locked position. Again a resilient mechanism 11 is attached to the holding plate 4. Leaf springs 17 are attached to the edge of the opening 6 opposite the edge which engages the catch 10. The springs are inclined at an acute angle below the holding beam 4 such that depressing of the operative push button 8 will cause the cam surface 14 of the control element 7 to engage the spring 17. The cam surface 14 in this embodiment is the narrow side of the control element 7 opposite the catch 10. Once the spring force of spring 17 overcomes the resistance of the tension spring the holding beam 4 will move to the left as shown in FIGURE 2. This movement of the holding beam 4 will cause the beam to overlay the catch and thereby lock the push button 8 in the depressed position. Again, the other non-depressed push buttons 8 are blocked by the interference between the holding beam 4 and the extension 16 of the control element 7. If several push buttons 8 are to be depressed this must be accomplished simultaneously.
For releasing depressed push buttons, the holding beam in this embodiment comprises an inclined projection 18 with which control element 7 of the release push button 9 cooperates. The holding beam is again moved in the direction of its rest position until the depressed push buttons are released and the corresponding resilient elements 17 are relaxed whereby the holding beam returns to its rest position under the action of the tension spring 5.
As may be seen from the above embodiments, particular requirements need not be imposed upon the dimensions of the recesses 6 and the holding beam 4 and the catches and locking members 10, 16 on the push button control elements, since the resilient elements 11 have a compensating effect. Snapping into engagement and locking, respectively, of the keys is also ensured after a prolonged period in operation.
Variations of the embodiments described are possible without departing from the scope of this invention. For example, the push buttons may be sliding push buttons or swinging push buttons, several release push buttons may be provided of which some have separate holding devices and the like. There are not any limitations on the designer in constructing the resilient elements, the holding beam and the push button control elements; for example, the locking member may also be formed by the lower side of the control elements or the resilient elements may be arranged on the control element instead of on the holding beam. The control element is to be understood to include also members which can be moved in a direction other than the direction in which the push buttons are operated.
What is claimed is:
1. A push button mechanism for recording and playback apparatus, comprising a series of operative push buttons, support means for retaining said push but-tons, means connected to said support means for engaging an operative push button in an actuated position, first means attached to said engagement means for biasing said engagement means to a non-engaging position relative to said operative push button, catch means on said operative push button adapted to lockingly engage said engagement means when said operative push button is actuated, second means attached to said engagement means and upon actuation by said operative push button normally biasing said engagement means to a latching position relative to said operative push button against the action of said first biasing means thereby to engage said catch means and engaging means, and release push button means actuating said engagement means to override said second biasing means thereby to disengage said engagement means from the catch means of said operative push button.
2. A ush button mechanism according to claim 1 wherein said at least one operative push button includes a control element having the catch means attached thereon, said engagement means comprising a holding beam positioned normal to the longitudinal axis of said operative push button and in spaced relation from said catch means, one opening in said holding beam for each operative push button to receive said catch means, said second biasing means being positioned adjacent one edge of said openings, whereby actuation of said push button of said operative push button causes said control element to engage said second biasing means thereby causing said holding beam to move from its normally biased positioned into locking engagement with said catch means.
3. A push button mechanism according to claim 1 wherein said operative push button includes means to preclude actuation of the remaining operative push buttons after at least one operative push button has been actuated and lockingly engaged said engagement means.
4. A push button mechanism according to claim 2 wherein said release means comprises a release push button having cam means thereon, said release push button being retained in said support means, and cam engaging means on said holding beam whereby actuation of said release push button will move said cam means into engagement with said cam engaging means thereby forcing the holding beam out of locking engagement with said operative push button.
References Cited UNITED STATES PATENTS 2,451,150 10/1948 Brian 74483 XR 2,558,113 6/1951 Walton 74-483 2,973,664 3/1961 Williams 74-483 FRED C. MATTERN, JR., Primary Examiner.
B. T. CALLAHAN, Assistant Examiner.
US608368A 1966-01-14 1967-01-10 Push button retention and release mechanism Expired - Lifetime US3416388A (en)

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AT32766A AT258601B (en) 1966-01-14 1966-01-14 Pushbutton assembly

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AT (1) AT258601B (en)
BE (1) BE692612A (en)
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DE (1) DE1665230C3 (en)
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537330A (en) * 1968-09-12 1970-11-03 Seeburg Corp Alternating latch mechanism
US3722313A (en) * 1970-05-25 1973-03-27 R Schadow Push button switch units
US4236423A (en) * 1977-09-28 1980-12-02 Olympus Optical Co., Ltd. Operation mechanism for tape recorder
KR20210001245U (en) * 2019-11-27 2021-06-04 송시영 Memory assistance device for supporting everyday life

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451150A (en) * 1944-06-02 1948-10-12 Rca Corp Radio remote-control system
US2558113A (en) * 1948-03-06 1951-06-26 Westinghouse Electric Corp Push-button switch
US2973664A (en) * 1959-03-11 1961-03-07 Oak Mfg Co Push rod mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451150A (en) * 1944-06-02 1948-10-12 Rca Corp Radio remote-control system
US2558113A (en) * 1948-03-06 1951-06-26 Westinghouse Electric Corp Push-button switch
US2973664A (en) * 1959-03-11 1961-03-07 Oak Mfg Co Push rod mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537330A (en) * 1968-09-12 1970-11-03 Seeburg Corp Alternating latch mechanism
US3722313A (en) * 1970-05-25 1973-03-27 R Schadow Push button switch units
US4236423A (en) * 1977-09-28 1980-12-02 Olympus Optical Co., Ltd. Operation mechanism for tape recorder
KR20210001245U (en) * 2019-11-27 2021-06-04 송시영 Memory assistance device for supporting everyday life

Also Published As

Publication number Publication date
JPS436892B1 (en) 1968-03-14
BE692612A (en) 1967-07-13
DE1665230B2 (en) 1974-03-14
CH452237A (en) 1968-05-31
AT258601B (en) 1967-12-11
GB1178431A (en) 1970-01-21
ES335533A1 (en) 1967-12-01
NL6700334A (en) 1967-07-17
DE1665230C3 (en) 1974-10-17
DE1665230A1 (en) 1971-01-21
FR1529619A (en) 1968-06-21

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