EP0229746A3 - Return mechanism for an upright piano and means for its application - Google Patents

Return mechanism for an upright piano and means for its application Download PDF

Info

Publication number
EP0229746A3
EP0229746A3 EP87810035A EP87810035A EP0229746A3 EP 0229746 A3 EP0229746 A3 EP 0229746A3 EP 87810035 A EP87810035 A EP 87810035A EP 87810035 A EP87810035 A EP 87810035A EP 0229746 A3 EP0229746 A3 EP 0229746A3
Authority
EP
European Patent Office
Prior art keywords
jack
hammer
butt
key
rises
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.)
Granted
Application number
EP87810035A
Other languages
French (fr)
Other versions
EP0229746A2 (en
EP0229746B1 (en
Inventor
Fernand Kummer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT87810035T priority Critical patent/ATE89093T1/en
Publication of EP0229746A2 publication Critical patent/EP0229746A2/en
Publication of EP0229746A3 publication Critical patent/EP0229746A3/en
Application granted granted Critical
Publication of EP0229746B1 publication Critical patent/EP0229746B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00—Details or accessories
    • G10C3/16—Actions
    • G10C3/161—Actions specially adapted for upright pianos
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00—Details or accessories
    • G10C3/16—Actions
    • G10C3/18—Hammers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C9/00—Methods, tools or materials specially adapted for the manufacture or maintenance of musical instruments covered by this subclass

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Stringed Musical Instruments (AREA)
  • Insulators (AREA)
  • Massaging Devices (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Projection Apparatus (AREA)

Abstract

This device for an upright piano has a second escapement jack (14). This jack is fixed to the check (9). It can swing about a pivot (16). At one end (15) it extends towards the hammer shank (3) and in the other direction has an end (21). A trigger stop (22), in the form of a button, is fixed to a bar (23) above the second jack. After the first jack (2) has thrown the hammer towards the string (4), it leaves its point of support beneath the butt, through the action of the set-off button (8) on the escapement lever (7). If after striking the string the hammer falls back faster than the key (1) rises, the first jack does not move back under the butt (11). The shank of the hammer then falls onto the end (15) of the second jack. It is then possible, even if the key is allowed to rise only very slightly, to throw the hammer back again by means of the second jack, even if the first jack has not moved back under the butt. At its end of travel, the end (21) of the second jack, which rises with the check, meets the stop (22), and the end (15) rises sharply and lets the hammer reach the end of its travel under its own momentum. A spring (24) restores the second jack to position as soon as pressure on the key is relaxed. <IMAGE>
EP87810035A 1986-01-17 1987-01-19 Return mechanism for an upright piano and means for its application Expired - Lifetime EP0229746B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87810035T ATE89093T1 (en) 1986-01-17 1987-01-19 PULL-BACK DEVICE FOR A SMALL PIANO AND MEANS FOR ITS APPLICATION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH175/86 1986-01-17
CH17586 1986-01-17

Publications (3)

Publication Number Publication Date
EP0229746A2 EP0229746A2 (en) 1987-07-22
EP0229746A3 true EP0229746A3 (en) 1989-03-08
EP0229746B1 EP0229746B1 (en) 1993-05-05

Family

ID=4180973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87810035A Expired - Lifetime EP0229746B1 (en) 1986-01-17 1987-01-19 Return mechanism for an upright piano and means for its application

Country Status (5)

Country Link
EP (1) EP0229746B1 (en)
AT (1) ATE89093T1 (en)
DE (2) DE3785680T2 (en)
ES (1) ES2014214A4 (en)
GR (1) GR900300103T1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993003477A1 (en) * 1991-08-01 1993-02-18 Vladislav Vladimirovich Volkov Piano key mechanism
JPH0683326A (en) * 1992-08-31 1994-03-25 Yamaha Corp Action of upright piano
DE4414109A1 (en) * 1994-04-22 1995-10-26 Helmut Karl Repeat piano mechanism with key actuated lever
CN111531352A (en) * 2020-04-14 2020-08-14 陈忠 Rotary layering device for urheen barrel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE123696C (en) *
DE51541C (en) * H. L. HONE in Lexington, Kentucky Repetition mechanism for pianofortes
US1599743A (en) * 1923-10-01 1926-09-14 Carnes John Wilson Piano action

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE123696C (en) *
DE51541C (en) * H. L. HONE in Lexington, Kentucky Repetition mechanism for pianofortes
US1599743A (en) * 1923-10-01 1926-09-14 Carnes John Wilson Piano action

Also Published As

Publication number Publication date
DE229746T1 (en) 1990-09-06
ES2014214A4 (en) 1990-07-01
EP0229746A2 (en) 1987-07-22
EP0229746B1 (en) 1993-05-05
GR900300103T1 (en) 1991-09-27
DE3785680T2 (en) 1993-11-11
DE3785680D1 (en) 1993-06-09
ATE89093T1 (en) 1993-05-15

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