ATE89093T1 - PULL-BACK DEVICE FOR A SMALL PIANO AND MEANS FOR ITS APPLICATION. - Google Patents
PULL-BACK DEVICE FOR A SMALL PIANO AND MEANS FOR ITS APPLICATION.Info
- Publication number
- ATE89093T1 ATE89093T1 AT87810035T AT87810035T ATE89093T1 AT E89093 T1 ATE89093 T1 AT E89093T1 AT 87810035 T AT87810035 T AT 87810035T AT 87810035 T AT87810035 T AT 87810035T AT E89093 T1 ATE89093 T1 AT E89093T1
- Authority
- AT
- Austria
- Prior art keywords
- jack
- hammer
- butt
- key
- rises
- Prior art date
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Component Parts Of Construction Machinery (AREA)
- Projection Apparatus (AREA)
- Insulators (AREA)
- Massaging Devices (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>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH17586 | 1986-01-17 | ||
EP87810035A EP0229746B1 (en) | 1986-01-17 | 1987-01-19 | Return mechanism for an upright piano and means for its application |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE89093T1 true ATE89093T1 (en) | 1993-05-15 |
Family
ID=4180973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT87810035T ATE89093T1 (en) | 1986-01-17 | 1987-01-19 | PULL-BACK DEVICE FOR A SMALL 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)
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 |
Family Cites Families (3)
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 |
-
1987
- 1987-01-19 AT AT87810035T patent/ATE89093T1/en active
- 1987-01-19 EP EP87810035A patent/EP0229746B1/en not_active Expired - Lifetime
- 1987-01-19 DE DE87810035T patent/DE3785680T2/en not_active Expired - Fee Related
- 1987-01-19 ES ES87810035T patent/ES2014214A4/en active Pending
- 1987-01-19 DE DE198787810035T patent/DE229746T1/en active Pending
-
1991
- 1991-09-27 GR GR90300103T patent/GR900300103T1/en unknown
Also Published As
Publication number | Publication date |
---|---|
ES2014214A4 (en) | 1990-07-01 |
EP0229746B1 (en) | 1993-05-05 |
DE3785680D1 (en) | 1993-06-09 |
EP0229746A2 (en) | 1987-07-22 |
GR900300103T1 (en) | 1991-09-27 |
DE3785680T2 (en) | 1993-11-11 |
EP0229746A3 (en) | 1989-03-08 |
DE229746T1 (en) | 1990-09-06 |
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