US3927283A - Interlocking bar allowing operation of one switch assembly in a plural column, row matrix switch assembly - Google Patents

Interlocking bar allowing operation of one switch assembly in a plural column, row matrix switch assembly Download PDF

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Publication number
US3927283A
US3927283A US341200A US34120073A US3927283A US 3927283 A US3927283 A US 3927283A US 341200 A US341200 A US 341200A US 34120073 A US34120073 A US 34120073A US 3927283 A US3927283 A US 3927283A
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US
United States
Prior art keywords
interlocking
keys
coupling plate
rows
pushbutton
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
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US341200A
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English (en)
Inventor
Isao Kunimine
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.)
NEC Platforms Ltd
Nippon Tsushin Kogyo KK
Original Assignee
Nitsuko Corp
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Filing date
Publication date
Application filed by Nitsuko Corp filed Critical Nitsuko Corp
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Publication of US3927283A publication Critical patent/US3927283A/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

Definitions

  • interlocking pushbutton key switches are required to permit selection of the telephone circuit sconnected to the key telephone set.
  • key telephones are divided into different models depending on the number of telephone circuits that may be selected by the phone, such as sets using 6 or circuits.
  • the type of pushbutton key switch assembly furnished with each set therefore have different measurements corresponding thereto.
  • the pushbutton keys used in key telephone sets must be interlocking, (that is, when a certain key is locked and any other key is pushed, the locked key must release and return to its original position), but as the number of keys increase in key telephone sets to, for example, circuits, the buttons must be arranged in either two rows of ten buttons each or three rows of seven each.
  • the interlocking slide bar for prior art pushbutton key switches for telephones where multiple key rows are used have a single integrated interlocking slide bar designed specifically for the desired number of rows.
  • the key switch of the present invention performs all the required functions of interlocking pushbutton keys, but is not limited to a specific number of rows like conventional types found in the prior sets. Instead, by the present invention, the key switch rows may be assembled either singly or jointly by a very simple operation. The keys were devised to simplify assembly work and make the mounting of the keys easier.
  • the invention permits interlocking of a plurality of pushbutton rows by providing a toothed extension of an interlocking slide bar which engages in a hinged mounted, coupling plate. Because the other rows on the pushbutton assembly are similarly constructed and connected to the rotatably mounted, coupling plate, the horizontal interlocking movement of one interlocking bar as a key is depressed moves the slide bars of all other rows of keys connected to the coupling plate a substantially equal amount; thereby interlocking all the rows.
  • FIG. 1 is a top plan view of the prior art system of pushbutton keys
  • FIG. 2 is a top plan view of a 16 pushbutton key assembly constructed according to this invention.
  • FIG. 3 is a top plan view of a 24 pushbutton key assembly constructed according to this invention.
  • FIG. 4 is a partially cutaway side view taken along lines 4-4 of FIG. 2;
  • FIG. 5 is an exploded, partial isometric view.
  • FIG. 6 is an exploded, partial isometric view of a 16 pushbutton key assembly showing the function of two 77 ofFIG. 2 showing theoperation of the keys 1 in 5 each module. 9
  • EMBODIMENT Asshown in FIGS. 2 5, in a row of pushbutton keys 1 each key mutually interlocks by conventional means, additionally one end of horizontally movable, interlocking plate 10 has a lip or hooked extension 11. In the lip 11 a small cut out permits interlocking between the rows of pushbntto ns.
  • Mounting frame 2 is designed for mounting a plurality of pushbutton key rows 1.
  • the printed circuit board connector 3 is affixed to mounting frame 2 by mounting plate 4.
  • Printed circuit board 5 connects the circuits of slide switch contacts 1c of pushbutton keys switch 1 to the contacts 5a inserted in printed circuit connector 3.
  • a coupling plate 6, having an opening 6a, is used to interlock the pushbutton keys switch rows 1 for multiple mounting.
  • Shaft 7 is used to hinge coupling plate 6 on mounting frame 2.
  • An interlocking pushbutton key switch mechanism for a key telephone comprising a box shaped mounting frame; a plurality of switch modules mounted on" said frame each module having a plurality of pushbutton keys and associated switching means including printed circuit board means mounted to each of said modules, and said frame;
  • interlocking bars being movable in a horizontal direction upon depressing one of said keys in each of said rows, said interlocking bar having a notched portion on one end thereof;
  • a rotatably mounted rectangular coupling plate pivotally mounted atone end to said frame and being substantially perpendicular to the interlocking bars, said coupling plate having an openingiat the other end of said plate, on a portion of said plate projecting out from the coupling plate at a distance below the pivot point of the coupling plate and in juxtaposition to the notched portion of said bars, for engaging the notched portion of each of said interlocking bars so that horizontal movement of one of said bars pivots said coupling plate and causes interlocking horizontal movement of all other rows of keys in substantially the same manner to thereby interlock all the rows of keys.

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  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Telephone Set Structure (AREA)
US341200A 1973-01-31 1973-03-14 Interlocking bar allowing operation of one switch assembly in a plural column, row matrix switch assembly Expired - Lifetime US3927283A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1973012877U JPS5443330Y2 (ja) 1973-01-31 1973-01-31

Publications (1)

Publication Number Publication Date
US3927283A true US3927283A (en) 1975-12-16

Family

ID=11817636

Family Applications (1)

Application Number Title Priority Date Filing Date
US341200A Expired - Lifetime US3927283A (en) 1973-01-31 1973-03-14 Interlocking bar allowing operation of one switch assembly in a plural column, row matrix switch assembly

Country Status (3)

Country Link
US (1) US3927283A (ja)
JP (1) JPS5443330Y2 (ja)
CA (1) CA1005182A (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122316A (en) * 1976-01-28 1978-10-24 Alps Electric Co., Ltd. Push button switch assembly having independent operator interlock in at least two rows latching at least one operator
US4205557A (en) * 1977-08-26 1980-06-03 Trw Inc. Interlocking apparatus
US4297540A (en) * 1977-06-08 1981-10-27 Alps Electric Co., Ltd. Interlocking gang push-button switch
US4309579A (en) * 1979-04-20 1982-01-05 Alps Electric Co., Ltd. Ganged push-button switch
US4628153A (en) * 1984-12-17 1986-12-09 Marshall Daly Stand-alone keyphone system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2932816A (en) * 1958-05-19 1960-04-12 Sperry Rand Corp Keyboard transmitter
US3271530A (en) * 1965-01-12 1966-09-06 Bell Telephone Labor Inc Pushbutton switch with latching, lockout and indicator lamp structure
US3358090A (en) * 1963-03-11 1967-12-12 Samuel H Smith Pushbutton control with retaining and disabling means
US3646283A (en) * 1970-04-20 1972-02-29 Globe Union Inc Multistation pushbutton switch assembly with master control means for alternative push-push or only one switch operable at a time modes of actuation
US3678288A (en) * 1968-10-09 1972-07-18 Dynamics Corp America Multiple push button switch speed control system
US3706863A (en) * 1970-09-11 1972-12-19 Seeburg Corp Multiple switch assembly for vending machine selecting apparatus with improved master switch control
US3719786A (en) * 1971-04-02 1973-03-06 Ark Les Switch Corp Pushbutton slide switch assemblies with interconnected laminated slider switch set assemblies allowing only one activated switch in a particular set
US3778564A (en) * 1972-07-07 1973-12-11 Honeywell Inc Switch resetting apparatus for multi-bank push button switches

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS435459Y1 (ja) * 1966-11-01 1968-03-09

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2932816A (en) * 1958-05-19 1960-04-12 Sperry Rand Corp Keyboard transmitter
US3358090A (en) * 1963-03-11 1967-12-12 Samuel H Smith Pushbutton control with retaining and disabling means
US3271530A (en) * 1965-01-12 1966-09-06 Bell Telephone Labor Inc Pushbutton switch with latching, lockout and indicator lamp structure
US3678288A (en) * 1968-10-09 1972-07-18 Dynamics Corp America Multiple push button switch speed control system
US3646283A (en) * 1970-04-20 1972-02-29 Globe Union Inc Multistation pushbutton switch assembly with master control means for alternative push-push or only one switch operable at a time modes of actuation
US3706863A (en) * 1970-09-11 1972-12-19 Seeburg Corp Multiple switch assembly for vending machine selecting apparatus with improved master switch control
US3719786A (en) * 1971-04-02 1973-03-06 Ark Les Switch Corp Pushbutton slide switch assemblies with interconnected laminated slider switch set assemblies allowing only one activated switch in a particular set
US3778564A (en) * 1972-07-07 1973-12-11 Honeywell Inc Switch resetting apparatus for multi-bank push button switches

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122316A (en) * 1976-01-28 1978-10-24 Alps Electric Co., Ltd. Push button switch assembly having independent operator interlock in at least two rows latching at least one operator
US4297540A (en) * 1977-06-08 1981-10-27 Alps Electric Co., Ltd. Interlocking gang push-button switch
US4205557A (en) * 1977-08-26 1980-06-03 Trw Inc. Interlocking apparatus
US4309579A (en) * 1979-04-20 1982-01-05 Alps Electric Co., Ltd. Ganged push-button switch
US4628153A (en) * 1984-12-17 1986-12-09 Marshall Daly Stand-alone keyphone system

Also Published As

Publication number Publication date
CA1005182A (en) 1977-02-08
JPS49114804U (ja) 1974-10-01
JPS5443330Y2 (ja) 1979-12-14

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