US3283087A - Button arrangement in magnetic recording and/or play-back apparatus - Google Patents

Button arrangement in magnetic recording and/or play-back apparatus Download PDF

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Publication number
US3283087A
US3283087A US375605A US37560564A US3283087A US 3283087 A US3283087 A US 3283087A US 375605 A US375605 A US 375605A US 37560564 A US37560564 A US 37560564A US 3283087 A US3283087 A US 3283087A
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US
United States
Prior art keywords
button
holding bar
buttons
movement
members
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Expired - Lifetime
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US375605A
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English (en)
Inventor
Appel Arne
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US Philips Corp
North American Philips Co Inc
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US Philips Corp
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Publication date
Application filed by US Philips Corp filed Critical US Philips Corp
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Publication of US3283087A publication Critical patent/US3283087A/en
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    • 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
    • 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
    • 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 control arrangement for magnetic tape recording and/or play-back apparatus comprising buttons and associated linkage the rest positions of which are determined by springs and/or by reaction forces of components parts of the apparatus to be operated by the said buttons which in their operative end positions bear on a movable holding bar.
  • a holding bar is provided so as to be movable transversely i.e. at right angles to its longitudinal axis in the direction of the forces produced by the buttons bearing on the holding bar and is arranged to operate at least one preferably electric switch adapted to be operated by this transverse movement of the holding bar when holding the buttons.
  • the direction of movement of a button is reversed when it passes from its rest position to its operative end position because it has to be moved beyond, said end position before snapping into this position.
  • Such arrangements are known and have been previously used, for example, in the form of push-buttons of which that part of the path which the buttons, when depressed, travel only once, is used for permanently switching on an operating condition and of which the part of the path which the buttons travel in the reverse direction from their extreme depressed positions to their operative end positions is used to initiate an operation to be switched on temporarily and briefly only.
  • the invention contemplates a plurality of additional embodiments. It may be of advantage to maintain the position of a control arrangement, reached by transverse shifting of the holding bar, even if the operation of other buttons or of a release button would normally cause the holding bar to change its position several times.
  • a pawl arrangement is used to transmit the transverse movement of the holding bar to the control device(s) to be operated.
  • a highly suitable embodiment of such a pawl arrangement takes the form of a lever provided with a hook at one end and arranged on the holding bar spindle so as to be capable of lateral and 3,283,@87 Patented Nov. 1, 1966 ICC pivotal movement; when a button is operated the said lever is moved on the holding bar from its rest position which is determined by stops and springs and does not insert its hook onto a holding plate before the button is released.
  • the arrangement to move the pawl lever in its simplest form consists of a slide member adapted to slide along the spindle of the holding bar and to engage the pawl lever. Operation of the buttons moves the slide member along the bar by means of inclined surfaces provided on the operating members of the buttons (levers, rods or the like) and/or on the pawl lever. By not providing such inclined surfaces on individual operating members of the buttons or on the slide member many modifications can be obtained.
  • Arrangements including a pawl lever and a slide member and provided with a pivotally mounted holding bar the pivot spindle of which passes through plate-shaped apertured button-operating members may be elaborated by enabling the slide member to lock the buttons which have not been operated and/ or to provide predetermined sequence of operation of individual buttons.
  • the slide member is divided into several component parts, or individual slide members which are arranged side by side on the pivotal holding bar so as to be able to slide along this spindle and are pressed against one another by two springs.
  • the slide member is so divided into individual slide members that in the rest position, which is determined by the springs, adjacent side surfaces of the individual members are maintained in the plane of the button plates.
  • the button plates are provided with wedge-shaped members which may be integral with the plates and the inclined surfaces of which press against the inclined surfaces of the said individual slide members.
  • FIG. 1 is a front elevation of a button according to the invention.
  • FIG. 2 is a sectional view taken along line 11-11 of FIG. 1.
  • FIG. 3 is an enlarged partial view of a detail of FIG. 1.
  • FIG. 4 is a view taken on line IVIV of FIG. 1.
  • buttons (1, 2, 3, 4, 5) are arranged in a frame (button stand).
  • the button stand consists of a base plate 6 and a U-member 7.
  • the operating members of the buttons i.e. have the form of plates 8, 9, it ll, and 12 guided in suitable slots in the base plate 6 (not shown) and the U-member.
  • Lugs 13 (FIGURE 2) are punched from the button plates 842 and are surrounded by springs 1 engaging the button heads and the U-member 7 so at to urge the buttons upwardly into their rest position.
  • the movement of the buttons must obviously be limited in some way, for example, by abutment stops (not shown).
  • the manner in which the buttons and plates perform the operations to be carried out is not of importance to the invention. The said operations may, for example, for example, by abutment stops (not shown).
  • the operation-s performed by pushing the buttons may be mechanical or electrical.
  • the reaction forces produced in the operations by the movement of the parts to be operated act in a direction opposite to the direction in which the buttons are pushed and assist the action of the springs 14. Hence in some cases the springs 14 may be dispensed with.
  • a holding bar 16 is pivotal mounted on a spindle 17 by means of hinges 16a.
  • the holding bar 16 and the spindle 17 extend throughout the length of the button stand through apertures 18 in the button plates 8 to 12.
  • a spring 19 disposed between the holding bar 16 and a projection 20 on the base plate 6 pulls the holding bar 16 forward (as seen in FIG. 1) against lugs 21 (FIG. 2) of the button plates.
  • FIG. 2 it will be apparent that as button plate 10 moves downwardly, the lug 21 will cause the holding bar 16 to rotate counterclockwise about spindle 17.
  • buttons which were previously arrested by the holding bar 16 would be released when the button arrangement 3, 10 is depressed. If a button must only release other buttons but does not fulfill any other function and hence does not have to snap behind the holding bar 16, the upper surface of the lug 21 is bevelled. In the embodiment described this is the case with respect to the button 5 (release button, or stop button).
  • the holding bar 16 is arranged so as to be able to move in its hanger or hinges 16a in a direction at right angles to its longitudinal axis and in the direction of the forces produced by the buttons being supported.
  • the spindle 17 supporting holding bar 16 is journalled in the limbs of the U-member 7, in elongated slots 22 which permit of upward movement.
  • a contact 24 shown schematically in FIGURE 1 is disposed above one end 23 of the spindle 17. Each transverse or upward movement of the spindle 17 closes the contact.
  • the contact 24 may, for example, complete the circuit of an electromagnet which is provided as a central source of energy and performs opera- .tions prepared by depression of the buttons only when switched into circuit, i.e. causes the motor for driving a record carrier to be switched into circuit, when the leading end of the carrier provided on the apparatus is secured to the take-up reel by an automatic device. If the drive is not rendered operative by electric means but by mechanical means depression of a button may cause in addition to other operations a spring to be tensioned which has to operate the driving means. Setting is prevented, however, until a lever, substituted for the contact 24, releases the preventing means. It will be appreciated that such operations must be initiated only after all the other operations have been completely performed.
  • the holding bar 16 itself may also be used for this purpose. It is also immaterial whether the holding bar has the form described and is pivotable about its longitidinal axis or is provided in another known form e.g., in which it is moved longitudinally. Finally the invention may also be used if instead of a single continuous holding bar 16 for all the buttons several holding bars or segments are provided for given groups of buttons or even for single buttons and associated with switching devices. The basic principle of the invention may readily be used under a variety of switching conditions.
  • buttons not to be held by the holding bar it is frequently desirable for the said buttons when depressed or pushed to cause the holding bar to be transversely moved so that the switching device (24) to be operated by the holding bar is operated.
  • the button 4 of FIGURE 1 is such a button. Obviously it does not include a holding projection 21.
  • a pivotable lever 25 which when the button 4 is pushed is pivoted by means of a projection 26 provided on the button plate 11 and thus lifts the holding bar 16.
  • a lever 27 is mounted on the spindle 17 of the holding bar 16 so as to be movable (slidable) and pivotable. It consists of a plate from which two lugs 28 are bent which are provided with apertures for the spindle 17.
  • a spring 29 tends to pivot the pawl lever 27 and a spring 30 presses the said lever against a stop ring 31 forced into the spindle 17.
  • a hook 32 formed integral with the pawl lever 27 passes through an aperture 33 in the U-member 7 (FIG. 3).
  • the hook 32 slides only over an edge 34 (FIG. 3) which is a stop abutment for the hook against longitudinal movement to the left.
  • This abutment is also operative when the pawl lever 27 is only lifted but not moved to the right it will follow the pull of the spring 29 and hook into the plate 7 when the spindle 17 is lifted.
  • the contacts 24 to be operated may be disposed, not above the spindle tip 23, but so that it is operated by the pawl lever 27, for example, by the hook 32 when the said lever or hook is pivoted forward. This detail is not shown in the drawing.
  • a disengaging member may be operated, for example, by a marking provided on the trailing end of the record carrier.
  • the disengaging button 5 by means of which the pawl is rotated to lower the holding bar 16 may be provided with a projection (similar to 21 as seen in FIG. 2) which on operation (.depres sion) of the disengaging button 5 causes the pawl lever 27 to be pivoted back against the force of spring 29.
  • the pawl lever 27 is shifted by a slide member extending parallel to the spindle 17 and engaging the lever 27.
  • the shifting movement is effected with the aid of inclined surfaces provided on the slide member or on the button plates or on both and rendered operative when the buttons are depressed, Alternatively, the shifting movement may obviously be directly effected by a button.
  • the slide member comprises five individual members 35, 36, 37, 38 and 39 of synthetic material and of substantially parallelepiped shape which are slidably mounted on the spindle 17.
  • the said individual members are pressed against one another by two springs 40 and 41. They are provided with lugs 42 which are guided in longitudinally extending slits 43 in the U-member 7.
  • the length ofthe individual members 35-39 is chosen so that in the rest position their adjacent sides are situated in the planes passing through the centres of the button plates 8 to 11 or in the center of the planes of rods 8-12. Their rest position is determined by the fact that the lug 42 of the one member 39, which member is disposed to the right of the button plate 11 and engages the pawl lever 27, is arranged in the side 43a of the slit 43 in a position such that the member 39 is prevented from moving to the left.
  • the springs 40 and 41 are constructed so that the force of the spring 41 predominates.
  • members 35 to 39 are provided at the edges facing the button plates with inclined surfaces 45 and other members (some members 35 and 36) are recessed so that their sides adjacent the button plates have only a small height and are remote from the associated plates 8, 9.
  • the member 37, 38 and 39 may be directly shifted by operating one of the buttons 2, 3 or 4.
  • wedge-shaped bodies 46 of synthetic material are secured to the button plates 9, and 11.
  • the said wedge-shaped bodies 46 may alternatively be provided by embossing the plates.
  • the members 3 7 and 38 When the members 3 7 and 38 are moved to the left or to the right, they enter the apertures in the button plates 9, 10, 11 with their entire cross-sectional profile.
  • the cross-sectional area of the members 37 and 38 is formed to the cross-sectional profile of the apertures in the button plates that when one of the members 37 and 38 has entered said apertures the buttons 2 and 3 are locked.
  • the button 1 is not provided with wedge-shaped bodies 46.
  • the portions of the sides of the members 35 and 36 when situated within the button plate 8 are so low that the said button may be operated (depressed) without engaging the side members 35 or 36. Since the said members 35 and 36 are not moved by plates 8 or 9, the pawl lever 27 is not shifted and cannot engage.
  • On both sides of the button plate 8 the recesses of members 35 and 36 resume their full cross-section so that when the buttons 3 or 4 are pushed, the members 35 and 37 or 38 and the members 36 are moved to the left. Thus, pushing the buttons 3 and 4 locks the button 1 also.
  • a recess is made of a size such that depression of the button 2 is not prevented when the member 36 under the action of the spring 40 follows a movement of the members 37, 38 and 39 to the right. In this case the member 35 also follows this movement to the right and locks the button 1.
  • both the buttons 1 and 2 may be pushed together however, the button 2 can only be pushed simultaneously, with or after the button 1, but not conversely. Consequently, an accurately determined sequence of operations is ensured.
  • buttons 1 and 4 may be used without further expedients in a magnetic tape recorder, the button 1 for changing the am- :plifier over to recording, the button 2 for forward running at normal speed (amplifier changed over to reproduction), the buttons 3 and 4 for fast forward running and fast rewinding respectively and the button 5 as switch-off button.
  • said second means comprises a pawl member mounted on said rod for pivotal and sliding movement relative thereto, a latch member engageable with said pawl for removeably securing said pawl in one position, said pawl in said one position securing said rod against movement and maintaining said contact means closed independent of subsequent movement of said holding bar.

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  • Mechanical Control Devices (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
US375605A 1963-06-19 1964-06-16 Button arrangement in magnetic recording and/or play-back apparatus Expired - Lifetime US3283087A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT491063A AT240068B (de) 1963-06-19 1963-06-19 Tastenanordnung für Aufzeichnungs- und/oder Wiedergabegeräte

Publications (1)

Publication Number Publication Date
US3283087A true US3283087A (en) 1966-11-01

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US375605A Expired - Lifetime US3283087A (en) 1963-06-19 1964-06-16 Button arrangement in magnetic recording and/or play-back apparatus

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US (1) US3283087A (da)
AT (1) AT240068B (da)
BE (1) BE649465A (da)
CH (1) CH435786A (da)
DK (1) DK112661B (da)
ES (1) ES301127A1 (da)
GB (1) GB1068412A (da)
NL (1) NL6406922A (da)
SE (1) SE320712B (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3952175A (en) * 1974-09-18 1976-04-20 Oak Industries Inc. Pushbutton switch mechanism having block out members with common mounting and discrete latch bar
US4173166A (en) * 1977-11-07 1979-11-06 Thomas International Corporation Tab switch mechanism for musical instruments

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2437669A1 (fr) * 1978-09-28 1980-04-25 Bar Solo Systeme de commande d'enregistreur a bande

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2831075A (en) * 1956-02-13 1958-04-15 Switchcraft Push button switches
US3211846A (en) * 1962-01-02 1965-10-12 Gen Electric Multiple pushbutton switch with selective latching mechanism

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2831075A (en) * 1956-02-13 1958-04-15 Switchcraft Push button switches
US3211846A (en) * 1962-01-02 1965-10-12 Gen Electric Multiple pushbutton switch with selective latching mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3952175A (en) * 1974-09-18 1976-04-20 Oak Industries Inc. Pushbutton switch mechanism having block out members with common mounting and discrete latch bar
US4173166A (en) * 1977-11-07 1979-11-06 Thomas International Corporation Tab switch mechanism for musical instruments

Also Published As

Publication number Publication date
SE320712B (da) 1970-02-16
DK112661B (da) 1969-01-06
BE649465A (da) 1964-12-18
NL6406922A (da) 1964-12-21
GB1068412A (en) 1967-05-10
AT240068B (de) 1965-05-10
ES301127A1 (es) 1964-12-01
CH435786A (de) 1967-05-15

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