Yamaha G10C Manual de usuario descargar pdf (Pagina 3)

EP 0 585 798 B1

not return

slightly

after the

jack

is released from the butt.

SUMMARY OF THE INVENTION

It is therefore

an important object

of the

present

in-

vention

provide an upright piano

which is free from

the double-strike and the loss of

sound due

cling

the

string

and is

easily regulated.

accomplish

the

object,

the

present

invention

pro-

poses

produce a

gap

between

a leading

end of the

repetition

lever and

back check

by a

rotation of the

repetition

lever due

escape

a jack so

that

ham-

mer assembly can slightly

rotate

backwardly

after the

striking even

a key

depressed slowly,

when the

jack

escaped

from the butt and before the butt

rotates

backwardly.

In accordance with the

present

invention,

there is

provided an upright piano comprising: a) a keyboard

having

least

one key swingable

between

rest

posi-

tion without

any

force

applied

the

uses

and

end

position, a

capstan

button

projecting

from

a rear

end

portion

of the

least

one key; b)

least

one string as-

sociated with the

least

one key; c)

least

one

ham-

mer assembly

for

striking

the

least

one string; d) a

key

action mechanism linked with the

least

one key

for

driving

the

least

one

hammer

assembly,

and hav-

ing d-1) a whippen assembly pivotally supported by a

stationary structure,

and rotated

the

capstan

button

between

first initial

position corresponding

the

rest

position

and

first terminal

position corresponding

the end

position through a

first intermediate

position,

2) a jack pivotally supported by

the

whippen assembly,

and moved from

second initial

position

restricted

position

without

any

pivotal

motion when the

whippen

assembly

swung

from the first initial

position

the

first intermediate

position,

the

jack being

rotated around

the

whippen assembly

from the restricted

position

through an

escape

position

second terminal

position

when the

whippen assembly

is rotated from the first in-

termediate

position

the first terminal

position, d-3) a

butt

pivotally supported by

the

stationary structure,

and

connected with the hammer

assembly,

the butt

being ro-

tated

the

jack

forward direction from

third initial

position corresponding

the second initial

position

released

position corresponding

the

escape

posi-

tion,

the butt

being

kicked

the

jack

the released

position

for

rushing

the

least

one

hammer

assembly

toward the

least

one string,

the

least

one

hammer

assembly rebounding on

the

least

one string so

that

the butt

being

rotated in

backward direction

through a

second intermediate

position

third terminal

position,

d-4) a

back check

projecting

from the

whippen assem-

bly,

and

d-5) a

catcher

backwardly projecting

from the

butt,

and

brought

into

contact

with the back check when

the butt reaches the third terminal

position;

and

e) a

rep-

etition mechanism

having e-1) a repetition

lever

rotata-

bly supported by

the

butt,

and rotated

by a jack

due

the

escape

so as

produce a

gap

between

a leading

end thereof and the back check when the

jack

reaches

the second terminal

position

and before the

least

one

hammer

assembly

rotates

backwardly,

then the

leading

end

being brought

into

contact

with the back check when

the butt reaches the second intermediate

position, e-2)

a driving

rod

means projecting

from the

repetition

lever,

brought

into

contact

with the

jack,

and

rotating

the

rep-

etition lever

over

the back check

the

way

from the

escape

position

the second terminal

position by

the

jack

rotation due

the

escape,

and

e-3) an

elastic

means urging

the

repetition

lever for

allowing

the

driving

rod

means

brought

into

contact

with the

jack.

BRIEF DESCRIPTION OF THE DRAWINGS

The features and

advantages

of the

upright piano

according

the

present

invention will be

more clearly

understood from the

following description

taken in

con-

junction

with the

accompanying drawings

in which:

Fig.

side view

showing

essential

parts

upright piano according

the

present

invention

while the

key

staying

rest

position;

Fig.

2 is

a partially

cut-away

side view

showing,

an enlarged

scale,

a key

action mechanism

accom-

panied

with

a repetition

mechanism shown in

Fig.

;

Fig.

3 is

side view

showing

the

key

action mech-

anism and the

repetition

mechanism when the

jack

escaped

from the

butt;

Fig.

side view

showing

the essential

parts

the

upright piano

when the

key

action mechanism

enters

back-checked

state;

Fig.

side view

showing,

an enlarged

scale,

the

key

action mechanism and the

repetition

mech-

anism in the back-checked

state;

Fig.

6 is

side view

showing

the

key

action mech-

anism and the

repetition

mechanism in the

sus-

pended

state

after the

key

softly depressed;

Fig.

side view

showing a repetition

mecha-

nism

incorporated

in another

upright piano

accord-

ing

the

present

invention;

Fig.

8 is

side view

showing a repetition

mecha-

nism

incorporated

yet

another

upright piano ac-

cording

the

present

invention;

and

Fig.

9 is

side view

showing a repetition

mecha-

nism

incorporated

in still another

upright piano ac-

cording

the

present

invention.

DESCRIPTION OF THE PREFERRED

EMBODIMENTS

First Embodiment

Referring

first

Fig.

of the

drawings, an upright

piano embodying

the

present

invention

comprises a

keyboard

having a plurality

of black and white

keys

balance rail

b mounted

on a key

bed

and

turn-

ably supporting

the black and white

keys

with

respect

1 2 3 4 5 6 7 8 ... 19 20

EP 0 585 798 B1 12
IP 0 585 798 B1 20

Comentarios a estos manuales

Sin comentarios

Yamaha G10C Manual de usuario Pagina 3

Comentarios a estos manuales

Relacionado con productos y manuales para Sintetizador Yamaha G10C