JPH1039858A - Wippen position adjusting device of keyboard and keyboard device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the vertical position adjustment of the wippen of the keyboard device of an acoustic piano or electronic musical instrument having pseudo actions. SOLUTION: When a screw part 26b is screwed down, a front end 26c projects into a space 36g and an oscillation piece 36c oscillates counterclockwise around a hinge part 36d and pushes a capstan 25 as shown by an alternate long and short dash line and, therefore, the wippen 36 rises as reaction. When the screw is conversely screwed back, the projecting amt. of the front end 26c in the space 36g decreases and the oscillation piece 36c oscillates clockwise, thereby lowering the wippen 36. The rotating of this screw member 26 is easily executed by inserting a rectilinear bar-shaped driver into the space between a front side keyboard section and the pseudo action from the space above this front side keyboard section and engaging this driver with the screw member 26. The easy vertical position adjustment of the wippen 36 is, therefore, made possible and the easy adjustment of the touch is made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for adjusting a whippen position of a keyboard in a keyboard instrument such as an acoustic piano and an electronic musical instrument, and a keyboard apparatus using the whippen position adjustment apparatus.

[0002]

2. Description of the Related Art Conventionally, in a keyboard device used for an acoustic piano, a key pressing operation is converted into an upward operation by a keyboard, and a whippen on an action side is pushed up by a capstan of the keyboard. With this operation, a hammering operation provided by the hammer provided in the action is realized.

[0003] Recently, some electronic pianos use a pseudo action simulating the action of an acoustic piano in order to realize touch of the acoustic piano. Even in such a keyboard instrument, the key press operation is converted into an upward operation by the keyboard, and the capstan pushes up the whippen on the action side, just by not striking the hammer.

[0004]

In such an acoustic piano and an electronic piano provided with a simulated action, in order to adjust the touch of the keyboard, the amount of protrusion of the capstan from the keyboard is changed to raise and lower the whippen. It is necessary to adjust the position.

[0005] Since the capstan is screwed into the keyboard by its screw portion, the amount of protrusion can be adjusted by rotating the capstan. However, the gap between the keyboard and wippen was narrow, and rotating the capstan was a tedious task. That is, in order to rotate the capstan screwed to the keyboard, insert an elongated rotary operation tool with a sharp point or a hexagonal wrench between the keyboard and whippen, and It is necessary to insert into the hole provided in the side surface of the stan or to engage with the side surface. However, if the rotation operation tool is not fully adjusted even if the rotation operation tool is fully swung to the left or right, remove the rotation operation tool from the capstan, and then move the rotation operation tool to the capstan again from another direction. It was necessary to swing the rotary operation tool left or right.

In an electronic piano having a simulated action, an internal mechanism such as an action is made compact, and a space between a keyboard and a wippen is particularly narrowed. It is difficult to insert or engage with the hole on the side of the stanm, or to adjust it by swinging the rotary operation tool to the left and right.

Therefore, the present invention has been made to facilitate adjustment of the vertical position of a whippen in a keyboard device such as an acoustic piano or an electronic piano having a pseudo action.

[0008]

According to the whippen position adjusting device for a keyboard of the present invention, a screw member is screwed to the whippen side. The screw member has a rotary operation head and a screw portion, and is screwed to a screw portion near the swing end of the whippen with a screw portion, and the tip of the screw portion penetrates the whippen and is on the keyboard side. Contact with the capstan.

Thus, when the rotary operation head is rotated, the distance between the whippen and the capstan is adjusted, and the vertical position of the whippen is adjusted. Moreover, this adjustment is performed not by adjusting the vertical position of the capstan on the keyboard, but by rotating a screw member penetrating from the top to the bottom of the whippen on the whippen side. The swinging end of the wippen is a position where the whippen can be seen more easily from the space above the keyboard than the rear end of the keyboard that the wippen covers from above. Moreover, there is no need for the rotary operation head of the screw member to contact the capstan.

Therefore, according to the present invention, the rotary operation tool can be easily engaged with the rotary operation head of the screw member, and the screw member can be easily rotated, so that the vertical position of the whippen can be easily adjusted. . Further, the whippen position adjusting device for a keyboard according to the present invention is swingably attached to the lower surface side of the wippen and comes into contact with the capstan on the keyboard side, and the distance between the whippen and the capstan fluctuates according to the swing. A swinging piece, a rotating operation head, and a screw portion. The screw portion is screwed to a screwing portion near the swinging end of the whippen, and a tip portion of the screw portion penetrates the whippen. And a screw member that contacts the rocking piece.

As described above, the screw member to be rotated is provided not on the keyboard but on the wippen. Adjustment of the distance between the wippen and the capstan is performed by rotating the rotating operation head of the screw member so that the tip of the screw portion swings the swinging piece. This makes it possible to adjust the vertical position of the wippen and adjust the touch of the keyboard.

Since the screw member only needs to be in contact with the rocking piece at the tip end of the screw portion, the position and inclination of the screw member when screwed to the screw portion on the keyboard side are within a relatively wide range. You can choose. That is, the degree of freedom in arrangement and angle is high. Traditionally,
Since the screw member itself was a capstan, the head of the screw member had to be brought into contact with the wippen, so that its arrangement and angle were extremely limited, and it was difficult to insert and operate a rotary operation tool.

In the present invention, since the rotating operation head of the screw member does not need to come into contact with any member, the degree of freedom of the arrangement and angle of the screw member is high, and the position and angle at which the rotating tool is easy to operate. Can be arranged. Moreover, the screw member is mounted on the whippen side, and the rotational operation head is protruded above the whippen, so that the degree of freedom in the arrangement and angle of the screw member is further increased. For example, it is easy to arrange the rotary operation head at a position and at an angle where a linear rod-shaped driver or the like generally known as a rotary operation tool can be inserted and operated.

In order to attach the swinging piece to the keyboard so as to be swingable, for example, the whippen and the swinging piece are integrally formed of plastics, and the whippen and the swinging piece are connected by a hinge. This can be done by doing The threaded part is
It is not necessary to have a special shape, and it is sufficient that a screw hole into which the screw portion of the screw member is screwed is formed.

If the screw member is screwed into the threaded portion while being inclined to the keyboard side (the player side), the screw member is inserted into the rotary operation tool from the space above the keyboard to engage with the rotary operation head. Thus, the screw member can be easily rotated, and the rotation operation becomes efficient. In particular, as described above, a straight-bar-shaped driver can be used as the rotary operation tool, so that a normal tool may be used, which is advantageous in terms of cost, and the rotary operation becomes more efficient.

As a keyboard device incorporating such a capstan adjusting device, the following keyboard device may be used. For example, a front keyboard portion that swings around the pivot portion when one of the keys is depressed and the other end is a pivot portion, and one end portion is the front portion. It is arranged below the keyboard portion, the other end protrudes rearward from the pivot portion of the front keyboard portion, and is swingably supported between both ends by an axis substantially parallel to the swing axis of the front keyboard portion. And an action lever that raises the other end when pressed from above by the front keyboard portion at one end side, and an action that is interlocked with the action lever, and the swing end of the whippen that constitutes the action Any one of the whippen position adjusting devices described above may be provided in the vicinity.

As described above, when the keyboard is stacked in two stages, the conventional mechanism for directly operating and adjusting the capstan makes it more difficult to insert the rotary operation tool, and the rotary operation is extremely inefficient. However, in the whippen position adjusting device of the present invention, the screw member for adjusting the vertical position is provided on the upper surface side of the whippen, and the rotating operation head is not in contact with other components, so that In addition, the degree of freedom in the arrangement of the screw members is high, and it is easy to insert the rotation operation tool and perform the rotation operation.

Further, the required length of the front keyboard portion is from the key press operation portion to the shaft support portion, and does not extend directly to the action, so that the length of the front keyboard portion is sufficiently short. The action lever transmits this short key depression operation of the front keyboard portion to the action side. The action lever has one end disposed below the front keyboard portion, the other end protruding rearward from the pivot portion of the front keyboard portion, and swinging between both ends on an axis substantially parallel to the swing axis of the front keyboard portion. It is movably supported. When one end is pressed from above by the front keyboard portion, it operates to lift the other end. Therefore, through the action lever, like a conventional keyboard,
A key press operation can be transmitted to the action. This action lever is shorter than a conventional keyboard. As described above, since the short front keyboard portion and the short action lever are combined, there is no need to use a conventional long keyboard, and the short keyboard and the short action lever are unlikely to be distorted even when used for a long period of time. Therefore, maintenance is reduced. In particular, if one end of the action lever is disposed below the area between the key press operation portion and the shaft support portion in the front keyboard portion, the action lever can be further shortened, and the action lever is further distorted. Can be suppressed.

Further, the action may be an action used for a normal acoustic piano,
It may be a pseudo action that performs an operation to simulate the action of an acoustic piano in conjunction with the action lever. The wippen transmits a key press operation to the action side at a contact portion with the capstance, but the contact portion may be arranged below the upper surface position of the front keyboard portion. According to this structure, the action can be arranged at a position lower than the front keyboard portion as compared with the related art, so that the overall height of the keyboard device can be reduced and the keyboard device can be downsized.

Further, if the contact portion between the whippen and the capstan, which transmits the key pressing operation to the action side, is located below the pivot axis position of the front keyboard portion, the height of the keyboard device is further reduced. can do. The simulated action includes a wippen which is swung while being pushed up by a cap stance as the action lever is swung by a key press operation on the front keyboard portion, and a whippen which is pivotally supported by the whippen so as to be swingable. A jack that swings while ascending, and a bat that is pushed up by the jack and swings while the jack rises to a predetermined position, and after the jack rises to a predetermined position, moves away from the jack and inertia moves. And a simulated hammer provided on the bat, and a hammer stopper for abutting the simulated hammer in inertial motion to prevent the operation of the bat. A feeling can be created.

In particular, when the action lever and whippen are made of plastics, distortion is not generated for a long period of time as compared with the case where wood is used, so that maintenance is further reduced. Further, if the keyboard is made of plastics, it is more preferable to reduce maintenance, and if the jack is made of plastics, it is more preferable to reduce maintenance.

Examples of such plastics include methyl methacrylate polymer and methyl methacrylate.
Acrylic resin such as styrene copolymer, AS resin (SA
N resin), and a synthetic resin such as an ABS resin. When used as a keyboard device for an electronic musical instrument, a sensor may be provided below one end of the action lever pressed from above by the front keyboard portion to detect rocking due to a key press operation of the action lever.

[0023]

1 and 2 show a partial sectional view of a keyboard device 2 according to an embodiment of the present invention. FIG. 1 shows an attached state of a white key 10 in the keyboard device 2, and FIG. 3 shows a state of attachment of a black key 12 in the keyboard device 2.

A metal leg 6a is fixed on the shelf plate 4,
On this leg 6a, at a position separated from the shelf board 4 by a predetermined distance,
A metal chassis 6 is fixed. A leg portion 8 of a shaft portion 10a is fixed to the rear end portion 6f side of the chassis 6, and a front keyboard portion 10, 12 is provided on the leg portion 8 at one end of the front keyboard portion 10, 12. 1)
At 0a, it is swingably attached. This shaft 10
The pivot axes of the front keyboard portions 10 and 12 by a are arranged parallel to the surface of the shelf 4, that is, in the horizontal direction. Therefore, the front end portions 10b and 12b of the front keyboard portions 10 and 12
It can swing up and down.

The front end portions 10 of the front keyboard portions 10 and 12
b, 12b, hook-shaped arms 10c,
12c protrudes. Hook arm 10c on the white key 10 side
The hook 10d is bent at a right angle in the direction of the shaft 10a, and the hook-like arm 12c on the black key 12 side is connected to the hook 12d.
Are bent at right angles in the direction of the tip 12b.

The front keyboard portions 10 and 12 are formed of synthetic resin in a hollow shape in which reinforcing ribs are arranged in some places.
On the front end 6b of the chassis 6, two long felt cushions 14a, 14b, 16
a, 16b are the arrangement directions of the front keyboard portions 10, 12 (FIG. 1,
2 (perpendicular to the paper surface).

The front end portions 10b, 1 of the front keyboard portions 10, 12
When the player has not pressed down the key press operation units 10e and 12e on the 2b side, the hooks 10d and 12d are moved to the front end 6b.
The lower keyboards abut against the long felts 14b and 16b, respectively, and the rocking of the front keyboard portions 10 and 12 is stopped.

When the player depresses the key-pressing operation units 10e and 12e, the lower surfaces 1 of the front keyboard units 10 and 12 are depressed.
0f and 12f are long felts 14 on the upper surface of the front end 6b.
a, 16a, respectively, and the front keyboard portions 10, 12
Prevents further swinging downwards.

Keyboard guides 7a and 7b project upward from both front and rear sides of a front end 6b of the chassis 6.
The keyboard guide portions 7a and 7b are inserted into hollow front keyboard portions 10 and 12, and serve to guide the front end portions 10b and 12b of the front keyboard portions 10 and 12 so as not to swing right and left during a key pressing operation. Is fulfilled.

An action lever 18 is provided below the front keyboard portions 10 and 12 on the side of the shaft portion 10a.
At 8a, it is swingably supported by a substantially U-shaped bearing member 6c of the chassis 6. The bearing member fixing plate 6 attached to the chassis 6 in a cantilever manner from above the swing shaft 18a.
d abuts so that the swing shaft 18a does not come off the bearing member 6c.

The action lever 18 has its swing shaft 1
An operation end 18b and a swing end 18c are provided with the operation end 8a interposed therebetween. The operating end 18b can move between above and below the chassis 6 via the opening 6e of the chassis 6 when the action lever 18 swings. A sliding tape 20 having a small surface frictional resistance is provided on the upper side surface of the tip of the operating end 18b.
The sliding tape 20 has a front keyboard 1
It contacts the tips of the actuators 10g and 12g that protrude below the region between the key pressing operation portions 10e and 12e of the shaft portions 10e and the leg portions 8 of the shaft portion 10a, respectively.

Below the operating end 18b, the front keyboard 1
A substrate 28 is bridged in the arrangement direction of 0 and 12, and a key press detection sensor 30 is provided at a position corresponding to each action lever 18. The operation end 18b is the actuator 10
g, 12g, the key press detection sensor 3
The timing and velocity of the key pressing operation can be obtained from the on / off timing of the two switches within 0 and the difference between the timings.

The swinging end 18c protrudes into the lower space 22a on the side of the simulated action 22 through the opening 6g of the leg 6a on the rear end 6f of the chassis 6. As shown in the enlarged view of FIG. 3, a balance weight 24 is provided in the weight storage portion 24a at the tip of the swinging end 18c, and the capstan 2 protrudes upward adjacent to the weight storage portion 24a.
5 are provided.

The swinging end 3 of the whippen 36 of the simulated action 22 is located at a position facing above the capstan 25.
6b are arranged. A swinging piece 36c is swingably connected to the lower surface of the swinging end 36b in parallel with the whippen 36 via a hinge 36d. A whippen cloth 36e is attached to the lower surface of the swinging piece 36c,
The swinging piece 36c is in contact with the capstan 25 provided at the swinging end 18c of the action lever 18 via the whippen cloth 36e.

At the tip of the wippen 36, a screwing portion 36f is provided obliquely penetrating from the upper front side to the lower rear side. The screwing portion 36f connects the front keyboard portion 10 and the pseudo action 22 to each other. The screw member 26 is screwed into the screw portion 26b in a posture inclined obliquely forward so that the rotary operation head 26a faces the space direction above the front keyboard portion 10 via the space between the two. . And the screw part 26b is engaged with the screw part 36f.
Of the screw portion 26b at an obliquely downward direction.
Is a space 36g between the swinging piece 36c and the wippen 36.
, And comes into contact with the upper surface of the swinging piece 36c to support it so as not to swing upward.

For this reason, when the rotary operation head 26a is rotated clockwise (clockwise), the screw portion 26b is screwed in, the tip portion 26c projects further into the space 36g, and the tip portion 26c becomes the swinging piece 36c. Press the upper surface of to move it down. As a result, the swinging piece 36c swings counterclockwise around the hinge portion 36d, and the position of the swinging piece 36c tends to move slightly downward, as shown by the dashed line in FIG. However, since the capstan 25 is at the lower limit position, the swing end 36b of the wippen 36 moves upward as a reaction. As a result, the screw member 26 pushes up the wippen 36, and the position of the whippen 36 is raised. Conversely, when the rotary operation head 26a is rotated counterclockwise (counterclockwise), the screw portion 26b is unscrewed, the amount of protrusion of the distal end portion 26c in the space 36g decreases, and the swinging piece 36c moves upward. In order to move, the swinging end 36b of the wippen 36 is lowered, and the position of the wippen 36 is lowered.

As shown in FIG. 1, the rotary operation head 26a of the screw member 26 is rotated by a straight rod-shaped driver D, which is a general rotary operation tool, from the space above the front keyboard section 10 to the front keyboard section 10. When inserted into the space between the pseudo-action 22 and the pseudo-action 22, and engaged with the rotation operation head 26a of the screw member 26, it can be easily rotated. For this reason, wippen 36
It is easy to adjust the touch feeling of the front keyboard portions 10, 12 by changing the vertical position of the front keyboard portion.

The simulated action 22 performs an operation of simulating the action of an acoustic piano, and includes a wippen 36, a jack 38, a bat 40, and a stop rail 42. The wippen 36 is swingably supported by the center rail 46 via the whippen flange 44, and is pushed up by the swinging piece 36 c by the raising of the capstan 25 due to the key-pressing operation. It swings in the opposite direction to the swing direction, that is, clockwise in FIGS. The whippen 36 has a back check 48 supported by a support wire 50.

The jack 38 is swingably connected to the wippen 36, and rises together with the whippen 36 until the jack tail 38 a comes into contact with the regulation grail 52. This regulating rail 52 is provided with a regulating bracket 54 extending from the center rail 46.
It is fixed to the tip of.

The bat 40 contacts and separates from the jack 38 and is swingably supported by a butt flange 40a fixed to the center rail 46 by a center pin 40b. On the upper part of the bat 40, a pseudo hammer member 58 is screwed. The simulated hammer member 58 is formed by pressing a metal plate to form a curled portion 5.
8a and a rest portion 58b which is bent at an acute angle are formed, and swing together with the bat 40.

The height of the pseudo hammer member 58 is formed to be considerably lower than a normal hammer assembly (for example, about 1/2 to 1/20). Also, bat 4
A catcher member 64 is fixed to the 0 side so as to protrude toward the front keyboard portions 10 and 12.

The stop rail 42 is connected to the front keyboard 10,
Twelve ends are supported by brackets 59 at both ends and are provided so as to cover the pseudo hammer member 58 of the bat 40. The stop rail 42 includes a hammer stopper 42a, a hammer rail 42b, and a catcher stopper 42c.

The hammer stopper portion 42a can abut on the curl portion 58a of the pseudo hammer member 58 which has been swung by pressing a key, and the hammer rail portion 42b can abut on the rest portion 58b of the pseudo hammer member 58 at a stationary position. It is. The hammer stopper portion 42a and the hammer rail portion 42b are respectively provided with cushioning members 60 on opposite surfaces of the stop rail 42 at positions between the center pins 40b.
(For example, felt or urethane rubber). On the other hand, the catcher stopper portion 42c is provided with the catcher member 64 which has been swung by pressing a key.
It is formed by sticking a cushioning material 60 (for example, felt or urethane rubber) at a position where it can come into contact.

In the keyboard device 2 configured as described above, when the key is not pressed, the weight of the simulated action 22, such as the whippen 36, is increased via the screw member 26, the swinging piece 36c, and the capstan 25. Action lever 18
To the swinging end 18c of the motor. Further, the weight of the weight 24 is also applied to the swing end 18c. Therefore, a moment that swings clockwise in FIGS. 1 and 2 is generated in the action lever 18, and as a result, the operation end 18 b of the action lever 18 raises the actuators 10 g and 12 g of the front keyboard parts 10 and 12. Therefore, the front keyboard portions 10 and 12 try to swing clockwise in FIGS. 1 and 2, but the hook-shaped arms 10c and 12c abut against the long felts 14b and 16b, and the swing is prevented. Stopped in a state.

When the player depresses the key-pressing operation units 10e and 12e of the front keyboard units 10 and 12, the front keyboard units 10 and 1 are depressed.
2 swings counterclockwise in FIGS. 1 and 2 with the shaft portion 10a as the swing axis. As a result, the operation end 18b of the action lever 18 is connected to the actuators 10g and 12g.
g, the action lever 18 swings counterclockwise around the swing shaft 18a, and the swing end 18
The capstan 25 of FIG.
Then, the whippen 36 of the pseudo action 22 is lifted up through 6. Therefore, whippen 36 swings clockwise.

As the whippen 36 swings, the jack 38 swings counterclockwise with respect to the whippen 36 while rising so as to push up the bat 40. Thereafter, when the jack tail 38a of the jack 38 hits the regulation grail 52, the jack 38 becomes the jack tail 38.
The tip of the jack 38 comes out of the bat 40 quickly swinging counterclockwise around the contact point between the a and the regulation grail 52 as a fulcrum. The tip of this jack 38 is a bat 4
The operation to exit from 0 is let-off. Therefore, let-off can be generated in the pseudo action 22 as in the normal action.

After let-off, the bat 40 continues to swing clockwise by inertial motion together with the pseudo hammer member 58 and the catcher member 64. Thereafter, the curl portion 58a of the pseudo hammer member 58 performing the inertial motion collides with the cushioning material 60 attached to the hammer stopper portion 42a of the stop rail 42, and at the same time, the catcher member 64 also moves to the catcher stopper of the stop rail 42. It collides with the cushioning material 60 attached to the portion 42c. As a result, the bat 40 is prevented from inertial movement and swings back in the opposite direction, that is, counterclockwise. Since the impact force due to the collision is dispersed at two places (the hammer stopper 42a and the catcher stopper 42c), the stability and durability of the entire swinging system are improved.

When the bat 40 swings back and the player's finger is separated from the front keyboard portions 10 and 12, the rest portion 58b of the pseudo hammer member 58 is attached to the hammer rail portion 42b of the stop rail 42. Abuts the cushioning material 60 which is present, and stands still in that state. On the other hand, when the bat 40 swings back together with the simulated hammer member 58 and the catcher member 64, if the front keyboard portions 10 and 12 are still depressed, as shown in FIGS. The catcher member 64 is received at the back stop position by the felt 48 a of the back check 48 before the 58 b comes into contact with the cushioning material 60 attached to the hammer rail portion 42 b of the stop rail 42. It is the backstop that the catcher member 64 is received by the felt 48a of the backcheck 48.

Therefore, the function of the pseudo action 22 is the same as that of an acoustic piano except that the pseudo hammer member 58 does not strike a string. For this reason, the touch feeling received by the player from the front keyboard portions 10 and 12 is almost the same as that of an acoustic piano.

As shown in FIGS. 4 and 5, when the key is pressed, the lower side of the operation end 18b of the action lever 18 contacts the key press detection sensor 30 to turn on / off two switches inside the key press detection sensor 30. Since it operates, the key press timing and its velocity can be detected. Based on this detection, the electronic control circuit (not shown) controls the electronic tone generator to generate the pitch and velocity corresponding to the keyboard at the timing corresponding to the key press. A performance sound can be output with a corresponding intensity.

The keyboard device 2 configured as described above is provided with the capstan 2 on the action lever 18 side as described above.
Instead of adjusting the height of 5, on whippen 36 side,
By adjusting the screw member 26 protruding above the wippen 36, the swinging piece 3 provided on the lower surface of the wippen 36 is adjusted.
The vertical position of whippen 36 is adjusted by swinging 6c. With such a configuration, the screw member 26 is not hidden by the wippen 36, and the screw member 26 and the swinging piece 36c are separately provided.
The degree of freedom of arrangement is large. Therefore, as shown in FIG. 1, the screw member 26 can be provided at a position and an inclination at which the straight-bar-shaped driver D can be used as it is.

The driver D for the screw member 26
Is only to rotate the shaft and does not swing left or right. For this reason, since the space for swinging right and left as in the related art is not required, even when the keyboard device 2 and the pseudo action 22 are combined at high density, the vertical position of the whippen 36 can be adjusted very efficiently. become able to.

The swinging piece 36c is swingably connected to the whippen 36 at a hinge 36d. The wippen 36, the swinging piece 36c and the hinge 36d are integrally formed of plastics. Therefore, manufacture is easy. The keyboard device 2 of the present embodiment includes front keyboard portions 10, 12, an action lever 18, and a simulated action 22, and the length of the front keyboard portions 10, 12 is different from that of the key pressing operation portions 10e, 12e by leg portions. 8, the length of the front keyboard portions 10, 12 is sufficiently shorter than the length of the conventional keyboard. This front keyboard 1
The action lever 18 transmits the key press operation of the keys 0 and 12 to the pseudo action 22 side. The action lever 18 has one end (operation end 18 b) at the front keyboard 1.
0, 12 and the other end (swinging end 18 c) of the front keyboard portion 10, 12 is located on the front side of the keyboard portion 1, rather than the shaft portion 10 a.
The protruding action is inserted into the lower space portion 22 a of the pseudo action 22 so as to protrude outside of the positions 0 and 12. This action lever 1
8 is also sufficiently shorter than the conventional keyboard length.

Due to the presence of the action lever 18,
As described above, even with the short front keyboard portions 10 and 12 up to the shaft portion 10a, the key press operation can be transmitted to the pseudo action 22 as in the case of the conventional keyboard. As described above, since the short front keyboard portions 10 and 12 and the short action lever 18 are combined, it is not necessary to use a conventional long keyboard, and even when used for a long period, the short front keyboard portion 1 is not used.
The distortion is hardly caused between the action lever 18 and the short action lever 18. Therefore, maintenance is reduced. In particular, since one end (operation end 18b) of the action lever 18 is disposed below the area between the key depression operation parts 10e, 12e and the shaft part 10a in the front keyboard parts 10, 12, the action lever 18 is provided. Can be further shortened, and the occurrence of distortion of the action lever 18 can be further suppressed.

A capstan 25 is provided at the swinging end 18c of the action lever 18, and the tip of the capstan 25 contacts the swinging piece 36c of the wippen 36 to transmit a key pressing operation to the pseudo action 22 side. , The capstan 25 and the swinging piece 36c (actually,
e) and the shaft portion 10a of the front keyboard portions 10, 12
Since the pseudo action 22 is disposed below the position, the pseudo action 22 can be disposed at a position lower than in the related art, and the height of the keyboard device 2 can be reduced.

Here, the front keyboard portions 10, 12, the action lever 18, the whippen 36, the jack 38, the butt flange 40a, the wippen flange 44, and the bat 40 are formed of plastics such as synthetic resin, so that wood is used. As compared with the case where is used, distortion does not particularly occur for a long period of time. Therefore, maintenance is sufficiently reduced. These members may be made of metal, and are less likely to be distorted. The use of a synthetic resin or a metal is the most preferable in that at least the action lever 18 and the wippen 36 maintain accuracy. Further, the front keyboard portions 10, 12 and then the jack 38
Is preferably made of synthetic resin or metal.
Other configurations may be wooden, synthetic resin, or metal.

[Others] In the above embodiment, the swinging piece 3
6c is integrally formed with the wippen 36 in a state where it is connected to the whippen 36 by a hinge 36d. However, as shown in FIG. 6, the substantially hemispherical tip 70 of the screw 26b is directly connected to the capstan 25 of the action lever 18. To make contact with
The swinging piece of the wippen 72 may be omitted. Even with this configuration, rotation of the screw member 26 causes the whippen 72 to rotate.
The vertical position of can be adjusted. Although the cloth 25a is adhered to the surface of the capstan 25, it may be adhered to the surface of the tip portion 70 of the screw portion 26b.

In the above embodiment, the height of the capstan 25 is fixed.
The height of 5 is also adjustable, and before the large position adjustment is combined with the simulated action 22, it is adjusted on the capstan (for example, as a capstan on a screw) 25 side. May be adjusted by the screw member 26.

In the above-described embodiment, the pseudo action 22 is used in order to exemplify the configuration as an electronic piano. However, instead of the pseudo action 22, an action used for a normal acoustic piano is used and the pseudo action 22 is used. You may. Also in this configuration, the height of the wippen 36, 72 can be adjusted efficiently, the height of the action portion can be reduced, the acoustic piano can be made compact, the keyboard can be further shortened, and the synthesis can be performed. By being formed of resin, it is advantageous in terms of maintenance.

Although the above-described example is an example of an upright piano, it may be an electronic piano using a pseudo action of a grand piano, or may be applied to a grand acoustic piano.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view of a white key portion of a keyboard device 2 according to an embodiment.

FIG. 2 is a partial cross-sectional view of a black key portion in the keyboard device 2 as one embodiment.

FIG. 3 is an enlarged view around a screw portion, a capstan, and a whippen according to an embodiment.

FIG. 4 is an explanatory diagram illustrating a state where a white key is operated in the keyboard device 2 according to the embodiment;

FIG. 5 is an explanatory diagram illustrating a state where a black key is operated in the keyboard device 2 according to the embodiment;

FIG. 6 is an enlarged view around a screw portion, a capstan, and a whippen according to another embodiment.

[Explanation of symbols]

2: Keyboard device 4: Shelf board 6: Chassis
6a ... Leg 6b ... Front end 6c ... Bearing member 6d ... Bearing member fixing plate 6e ... Opening 6f ... Rear end 6g ... Opening 8 ... Leg portion of shaft portion 10,12 ... Front keyboard (10 ... White key) , 12 ... black key) 10a ... shaft part 10b, 12b ... tip part 10c, 12c ... hook-shaped arm 10d, 12d ... hook part 10e, 12e ... key-pressing operation part 10f, 12f ... lower surface 10g, 12g ... actuator 14a, 14b , 16a, 16b ... long felt 18 ... action lever 18a ... swing shaft 18b
... Operation end 18c ... Swinging end 20 ... Sliding tape 22 ... Pseudo action 22a ... Lower space 24 ... Weight 24a ... Weight storage 24b ... Space 25 ... Capstan 25a ... Cross 26 ... Screw member 26a ... Rotation operation head 26b ...
Screw portions 26c, 70: Tip portion of screw portion 28: Substrate 30: Key press detection sensor 36, 72: Wippen
36b: swinging end 36c: swinging piece 36d: hinge portion 36e: whippen cloth 36f: screwing portion 36g: space 38: jack 38a: jack tail 40: bat 40a ...
Butt flange 40b ... Center pin 42 ... Stop rail 42a ... Hammer stopper part 42b ... Hammer rail part 42c ... Catcher stopper part 44 ... Wippen flange 46 ... Center rail 48 ... Back check 5
0 ... Support wire 52 ... Regulating gland 54 ... Regulating bracket 58 ... Pseudo hammer member 58a ... Curl part 58
b ... rest part 59 ... bracket 60 ... cushioning material 64 ... catcher member D ... driver

Claims (13)

[Claims] A rotating head and a screw portion, the screw portion being screwed to a screwing portion near a swinging end of the whippen, and a tip portion of the screw portion penetrating the whippen. By providing a screw member that comes into contact with the keyboard-side capstan, when the rotary operation head is rotated, the distance between the whippen and the capstan is adjusted, and the vertical position of the whippen is adjusted. A whippen position adjusting device for a keyboard. 2. A swinging piece which is swingably attached to a lower surface side of a whippen and comes into contact with a capstan on a keyboard side, and a distance between the whippen and the capstan fluctuates according to the swinging movement. A wedge part having a head portion and a screw portion, which is screwed to a screw portion near the swing end of the whippen with the screw portion, and a tip end portion of the screw portion penetrates the whippen and contacts the rocking piece; When the rotary operation head is rotated, the tip of the screw portion swings the rocking piece to change the distance between the whippen and the capstan, A whippen position adjusting device for a keyboard, wherein a vertical position of the whippen is adjusted. 3. The whippen and the swinging piece are integrally formed of plastics, and the whippen and the swinging piece are swingably connected by a hinge portion. Item 4. The whippen position adjusting device for a keyboard according to Item 2. 4. The rotary operating head of the screw member, wherein the screw member is inclined toward the keyboard and screwed into the screwing portion, so that a rotary operating tool is inserted from a space above the keyboard. The whippen position adjusting device for a keyboard according to any one of claims 1 to 3, wherein the screw member can be rotated by engaging the whippen position. 5. The whippen position adjusting device for a keyboard according to claim 4, wherein said rotary operation tool is a straight bar driver. 6. A front keyboard portion that swings around the pivot portion when one of the keys is depressed, and the other end is a pivot portion. Side is disposed below the front keyboard portion, the other end protrudes rearward from the pivot portion of the front keyboard portion, and can swing between both ends on an axis substantially parallel to the swing axis of the front keyboard portion. An action lever that lifts the other end when pressed from above by the front keyboard portion at one end, and an action linked to the action lever, and a whippen that constitutes the action. A keyboard device provided with the whippen position adjusting device for a keyboard according to any one of claims 1 to 5, near the swinging end. 7. The keyboard device according to claim 6, wherein the action is a pseudo action for performing an operation of simulating an action of an acoustic piano in conjunction with the action lever. 8. The whippen which swings while being pushed up by the capstan as the action lever swings due to a key press operation on the front keyboard portion, and wherein the whippen swings. A jack that is pivotally supported and swings while rising with the swing of the wippen, while the jack rises to a predetermined position, it is pushed up by this jack and swings, and after the jack rises to a predetermined position, A bat that is separated from the jack and moves by inertia; a pseudo-hammer part provided on the bat; and a hammer stopper that abuts on the pseudo-hammer part that is moving by inertia and prevents the operation of the bat. The keyboard device according to claim 7, wherein: 9. The keyboard device according to claim 8, wherein said jack is made of plastics. 10. A contact portion between the whippen and the capstan, which transmits a key pressing operation to the action side, is disposed below an upper surface position of the front keyboard portion. 10. The keyboard device according to any one of claims 9 to 9. 11. A contact portion between the whippen and the capstan, which transmits a key press operation to the action side, is disposed below a pivot axis position of the front keyboard portion. Item 10. The keyboard device according to any one of Items 6 to 9. 12. The keyboard device according to claim 6, wherein said front keyboard portion is made of plastics. 13. A sensor is provided below one end of the action lever, which is pressed from above by the front keyboard, to detect a swing caused by a key pressing operation of the action lever. 13. The keyboard device according to any one of items 12 to 12.