IT1219049B - Keys depressible against spring assembly - Google Patents

Keys depressible against spring assembly

Info

Publication number
IT1219049B
IT1219049B IT67146/88A IT6714688A IT1219049B IT 1219049 B IT1219049 B IT 1219049B IT 67146/88 A IT67146/88 A IT 67146/88A IT 6714688 A IT6714688 A IT 6714688A IT 1219049 B IT1219049 B IT 1219049B
Authority
IT
Italy
Prior art keywords
strip
keys
longitudinally spaced
spring assembly
carrier
Prior art date
Application number
IT67146/88A
Other languages
Italian (it)
Other versions
IT8867146A0 (en
Inventor
Paul Thevis
Christian Wolski
Original Assignee
Hohner Ag Matth
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 Hohner Ag Matth filed Critical Hohner Ag Matth
Priority to IT67146/88A priority Critical patent/IT1219049B/en
Publication of IT8867146A0 publication Critical patent/IT8867146A0/en
Application granted granted Critical
Publication of IT1219049B publication Critical patent/IT1219049B/en

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  • Electrophonic Musical Instruments (AREA)

Abstract

The keyboard of a musical instrument comprises a number of keys (1) which are arranged on a fixed carrier (8) and each depressible by a predetermined amount against a return spring assembly (17). Each such assembly comprises an element, e.g. a U-shaped spring member (17a,b,a) with longitudinally spaced sides (17a) initially at right angles to the upper key surface (3) and with their lower ends connected via a strip (19) downwardly convexly curved through the spring action of the sides (17a). The longitudinal centre of the strip (or leaf spring) rests on the carrier (8) via a transverse shaft (20) which supports the strips of the respective keys. The principle is based on having two longitudinally spaced key support points (i.e. ends of the strip) on a horizontal line at a level above a central fixed support point shaft which is pref. adjustable in height via a rotatable eccentric (24) to vary touch. Alternative embodiments are described and illustrated.
IT67146/88A 1988-02-26 1988-02-26 Keys depressible against spring assembly IT1219049B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT67146/88A IT1219049B (en) 1988-02-26 1988-02-26 Keys depressible against spring assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67146/88A IT1219049B (en) 1988-02-26 1988-02-26 Keys depressible against spring assembly

Publications (2)

Publication Number Publication Date
IT8867146A0 IT8867146A0 (en) 1988-02-26
IT1219049B true IT1219049B (en) 1990-04-24

Family

ID=11299969

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67146/88A IT1219049B (en) 1988-02-26 1988-02-26 Keys depressible against spring assembly

Country Status (1)

Country Link
IT (1) IT1219049B (en)

Also Published As

Publication number Publication date
IT8867146A0 (en) 1988-02-26

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