IT1125477B - Meccanismo a tasti con azione a scatto - Google Patents

Meccanismo a tasti con azione a scatto

Info

Publication number: IT1125477B
Authority: IT; Italy
Prior art keywords: snap action; key mechanism; key; snap; action
Prior art date: 1978-10-11

Application number

IT26375/79A

Other languages

English (en)

Other versions

IT7926375A0 (it

Inventor

Scott J Longrod

Original Assignee

Scm Corp

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.)

1978-10-11

Filing date

1979-10-10

Publication date

1986-05-14

1979-10-10 Application filed by Scm Corp filed Critical Scm Corp

1979-10-10 Publication of IT7926375A0 publication Critical patent/IT7926375A0/it

1986-05-14 Application granted granted Critical

1986-05-14 Publication of IT1125477B publication Critical patent/IT1125477B/it

Links

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J5/00—Devices or arrangements for controlling character selection
- B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type
- B41J5/26—Regulating touch, key dip or stroke, or the like
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J5/00—Devices or arrangements for controlling character selection
- B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type
- B41J5/14—Construction of key levers
- 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
- Y10T74/18—Mechanical movements
- Y10T74/18856—Oscillating to oscillating
- Y10T74/18864—Snap action
- 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
- Y10T74/18—Mechanical movements
- Y10T74/18856—Oscillating to oscillating
- Y10T74/18864—Snap action
- Y10T74/18872—Plate spring

IT26375/79A 1978-10-11 1979-10-10 Meccanismo a tasti con azione a scatto IT1125477B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/950,482 US4269521A (en)	1978-10-11	1978-10-11	Key mechanism having a snap action

Publications (2)

Publication Number	Publication Date
IT7926375A0 IT7926375A0 (it)	1979-10-10
IT1125477B true IT1125477B (it)	1986-05-14

Family

ID=25490490

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT26375/79A IT1125477B (it)	1978-10-11	1979-10-10	Meccanismo a tasti con azione a scatto

Country Status (10)

Country	Link
US (1)	US4269521A (it)
JP (1)	JPS5556317A (it)
BR (1)	BR7906606A (it)
CA (1)	CA1130747A (it)
DE (1)	DE2941309A1 (it)
FR (1)	FR2438545A1 (it)
GB (1)	GB2033303B (it)
IT (1)	IT1125477B (it)
NL (1)	NL7907554A (it)
SE (1)	SE7908402L (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4343557A (en) *	1981-01-15	1982-08-10	Scm Corporation	Spacebar touch control apparatus
US4407596A (en) *	1981-05-29	1983-10-04	Scm Corporation	Case shift and lock input mechanism including a shift control switch
US4513271A (en) *	1982-07-16	1985-04-23	Minnesota Mining And Manufacturing Company	Momentary contact magnetic switch
US4855548A (en) *	1988-06-17	1989-08-08	Smith Corona Corporation	Keybutton guide assembly for a keyboard
US4818828A (en) *	1988-06-17	1989-04-04	Smith Corona Corporation	Electronic keyboard
DE19620880A1 (de) *	1996-05-23	1997-11-27	Brandestini Marco	Verfahren und Vorrichtung zur Erzeugung von elektrischer Energie für den Betrieb elektrischer Kleingeräte
US20050054431A1 (en) *	1997-07-03	2005-03-10	Walker Jay S.	Method and apparatus for providing instructions to gaming devices
US9324515B2 (en)	2012-08-06	2016-04-26	Synaptics Incorporated	Touchsurface assembly utilizing magnetically enabled hinge
US9177733B2 (en)	2012-08-06	2015-11-03	Synaptics Incorporated	Touchsurface assemblies with linkages

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US393496A (en) *		1888-11-27		Sponge and slate-pencil holder
US403288A (en) *		1889-05-14		Mechanical movement
US450324A (en) *		1891-04-14		George w
US2518480A (en) *	1946-06-01	1950-08-15	Barber Colman Co	Snap switch
FR963862A (it) *	1947-04-04	1950-07-24
US2646478A (en) *	1949-06-24	1953-07-21	Gen Electric	Switch closing mechanism
BE505847A (it) *	1950-09-16
DE1447353B2 (de) *	1964-04-21	1970-06-11	Grundig, Max, 85IO Fürth	Verstellbare Tastenhebelfederung für Schreib-, Rechen- oder ähnliche Maschinen
GB1028059A (en) *	1964-11-06	1966-05-04	Creed & Co Ltd	A signal generating arrangement for an electric typewriter and similar apparatus
US3612240A (en) *	1970-01-30	1971-10-12	Litton Business Systems Inc	Key-responsive switching mechanism
CH518803A (fr) *	1970-12-15	1972-02-15	Paillard Sa	Dispositif de frappe d'une machine à écrire
US3725908A (en) *	1971-06-21	1973-04-03	Control Data Corp	Impact transducer keyboard apparatus
JPS528B2 (it) *	1972-01-11	1977-01-05
GB1472851A (en) *	1973-04-09	1977-05-11	Alphameric Keyboards Ltd	Keyboards
US4055734A (en) *	1973-12-26	1977-10-25	Thomas John Hayden	Keyboard switch assembly with hinged pushbuttons and cantilevered terminal members
JPS50149415A (it) *	1974-05-20	1975-11-29
US3915277A (en) *	1974-08-28	1975-10-28	Scm Corp	Typing machine key action
US4188137A (en) *	1977-12-12	1980-02-12	Scm Corporation	Low silhouette keyboard

1978
- 1978-10-11 US US05/950,482 patent/US4269521A/en not_active Expired - Lifetime
1979
- 1979-10-10 IT IT26375/79A patent/IT1125477B/it active
- 1979-10-10 SE SE7908402A patent/SE7908402L/ not_active Application Discontinuation
- 1979-10-10 GB GB7935175A patent/GB2033303B/en not_active Expired
- 1979-10-10 CA CA337,287A patent/CA1130747A/en not_active Expired
- 1979-10-11 JP JP13129179A patent/JPS5556317A/ja active Pending
- 1979-10-11 BR BR7906606A patent/BR7906606A/pt unknown
- 1979-10-11 NL NL7907554A patent/NL7907554A/nl not_active Application Discontinuation
- 1979-10-11 DE DE19792941309 patent/DE2941309A1/de not_active Ceased
- 1979-10-11 FR FR7925345A patent/FR2438545A1/fr not_active Withdrawn

Also Published As

Publication number	Publication date
US4269521A (en)	1981-05-26
IT7926375A0 (it)	1979-10-10
GB2033303A (en)	1980-05-21
JPS5556317A (en)	1980-04-25
GB2033303B (en)	1982-10-27
NL7907554A (nl)	1980-04-15
SE7908402L (sv)	1980-04-12
CA1130747A (en)	1982-08-31
BR7906606A (pt)	1980-06-17
DE2941309A1 (de)	1980-04-17
FR2438545A1 (fr)	1980-05-09

Publication	Publication Date	Title
IT1123106B (it)	1986-04-30	Commutatore a cinetismo
FI790257A (fi)	1979-07-31	Klave
AR224504A1 (es)	1981-12-15	Un conmutador de estado solido
PL214045A1 (pl)	1979-12-17	Srodek chwastobojczy
PL213648A1 (pl)	1979-11-19	Srodek chwastobojczy
IT7968080A0 (it)	1979-05-22	Cerniera a scatto
IT7927671A0 (it)	1979-11-29	Interruttore a pulsante.
IT1143420B (it)	1986-10-22	Commutatore a scorrimento con azione a scatto
IT1130267B (it)	1986-06-11	Interruttore a tasto
IT1125477B (it)	1986-05-14	Meccanismo a tasti con azione a scatto
FR2425139B1 (fr)	1985-08-16	Interrupteur a declic
RO84957A (ro)	1984-08-17	Incarcator-transportor cu cupe
ATA899178A (de)	1980-01-15	Flachschluessel
BR7904817A (pt)	1980-04-29	Dispositivo seletor a teclas
IT7927670A0 (it)	1979-11-29	Interruttore a pulsante.
IT7830542A0 (it)	1978-12-05	Serratura con chiavistello a scatto.
IT1194586B (it)	1988-09-22	Interruttore a pulsante a scatto
IT1141357B (it)	1986-10-01	Interruttore a tasto
AT359389B (de)	1980-11-10	Flachschluessel
BE878677A (fr)	1980-03-07	Interrupteur a main
BR7804623A (pt)	1979-04-17	Comutador a tecla
PL212939A1 (pl)	1979-09-24	Srodek chwastobojczy
SE7801936L (sv)	1979-07-18	Plannyckel
IT1118404B (it)	1986-03-03	Cerniera a scatto
BE875780A (nl)	1979-08-16	Convoyeur a raclettes