CN101217029B - Electronic keyboard musical instrument - Google Patents
Electronic keyboard musical instrument Download PDFInfo
- Publication number
- CN101217029B CN101217029B CN2008100002177A CN200810000217A CN101217029B CN 101217029 B CN101217029 B CN 101217029B CN 2008100002177 A CN2008100002177 A CN 2008100002177A CN 200810000217 A CN200810000217 A CN 200810000217A CN 101217029 B CN101217029 B CN 101217029B
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- key
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- drive division
- driving mechanism
- board unit
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Abstract
The present invention provides an electronic keyboard instrument which comprises the driving unit that drives the keys as the automatic playing piano and the projection at the lower side of the instrument body will not hamper the feet of the exponential. The electronic keyboard is arranged with a driving unit (2) in the opening part (10a) of the baseboard (10). The driving unit (2) is used for driving the hammer structure (13). The height of the plunger (24) is reduced by arranging a plunger (24F) at the front side of the driving unit (2) and a back plunger (24R) at the back side of the driving unit (2) at the vicinity of rotating fulcrum (02) of the hammer structure (13). The driving part cover (4) is used for covering the driving unit (2) and the driving unit used substrate (3). And the front side of the driving part cover is arranged with a slant plane (41).
Description
Technical field
The present invention relates to a kind of as the automatic playing piano, utilize the electric keyboard instrument of the key of automatic playing data-driven keyboard.
Background technology
Past based on the playing information (piano action or MIDI data) of storage in advance, utilizes the actuator of screwed pipe etc. to drive key in the electroacoustic piano, and the hammer of interlock is activated the back and hits string, carries out automatic playing.The disclosed technology of Japanese patent laid-open 9-237082 communique (patent documentation 1) for example.
On the other hand, what be widely known by the people is, in electronic musical instrument with electronics source of sound, from outside (sequencer) input such performance data (MIDI data), the such performance data that perhaps will be stored in foreign medium temporarily is stored in the internal storage or reads, based on this such performance data, play the electronics source of sound then, carry out automatic playing.
This electronic musical instrument is as the electroacoustic piano, even do not drive key, and also can automatic playing, but in the nearest electronic musical instrument (for example pianotron), be not only and listen to performance, also will watch performance, therefore hope now will be followed the pronunciation of source of sound, and key is driven.The technology that in electronic musical instrument key is driven for example has that the Jap.P. spy opens 2004-29549 communique (patent documentation 2), the Jap.P. spy opens 2005-55541 communique (patent documentation 3) like this.
[patent documentation 1] Japanese patent laid-open 9-237082 communique
[patent documentation 2] Jap.P. spy opens the 2004-29549 communique
[patent documentation 3] Jap.P. spy opens the 2005-55541 communique
In patent documentation 1 and 2, the rear portion of shaking fulcrum of the screwed pipe configuration of cells of key at key will be driven.Wherein, in the electroacoustic piano of patent documentation 1, because will be, therefore there be the place of configuration screwed pipe unit by direction place, lining what this shook fulcrum at the balance stem of the bamboo piece of the substantial middle portion that is arranged in key the fulcrum that shakes as key.But, in the pianotron of patent documentation 2, extend at the rear portion of shaking fulcrum of key and to be provided with the key arm, drive end thereafter to utilize screwed pipe to wait.Like this, musical instrument body needs the degree of depth, thereby can maximize, and has influenced the miniaturization as an advantage of pianotron.
Corresponding therewith, in patent documentation 3, owing to utilize actuator (screwed pipe and plunger) to drive the mass that is arranged on key under from the below, so can eliminate the problem of maximization of the degree of depth of musical instrument body.But, because the structure of pianotron when like this actuator being configured in the key board unit bottom, can make this actuator outstanding from the shelf bottom for placing key board unit on the shelf.
If the thickness of the short transverse of the housing of increase shelf or suitable shelf etc., can prevent the actuator distinct issues, but especially for pianotron, the player is for operating pedal, player's pin need be stretched into the below of musical instrument body, increasing musical instrument body thickness has certain limit.Therefore, need dwindle the size at above-below direction such as actuator, consider the structure of musical instrument body bottom simultaneously.In addition, at patent documentation 3, the structure of the bottom of this musical instrument body and the mounting structure of actuator etc. do not describe in detail, still have room for improvement.
Summary of the invention
The objective of the invention is to for the electric keyboard instrument that as the automatic playing piano, drives key, make that outstanding part can not influence the player to the driver element that drives this key from the shelf bottom based on playing information.
Electric keyboard instrument according to first scheme of the present invention, be equipped with key board unit with a plurality of mass that can distinguish joltily a plurality of keys of being provided with and rotate linkedly with this key and be provided with corresponding to each key, and, shake the anterior position place of fulcrum at the key of key board unit, the driver element of drive division is set, utilize the driving mechanism of this driver element, rotating mass body (hammer actuating mechanism) is changed to key-press status with key from non-key-press status.Also have,, be arranged on the different lines corresponding to the driving mechanism of adjacent key, and the drive division lid that covers drive division is set near driving mechanism 2 row configurations along the front and back rotating fulcrum of mass of driver element.As the shape of drive division lid, near forequarter lower tilt rearward.In the driving mechanisms of front and back 2 row, compare with rank rear, the driving stroke in prostatitis is little, and the overhang of bottom is little, and the rake of drive division lid extends to till the driving mechanism in prostatitis always.
The electric keyboard instrument of alternative plan according to the present invention, be equipped with to have and distinguish a plurality of keys that joltily are provided with, key board unit with a plurality of mass of rotating linkedly with this key and being provided with corresponding to each key, and, be equipped with and have the anterior position place that the key that is arranged on above-mentioned key board unit shakes fulcrum, utilize driving mechanism to rotate above-mentioned mass, above-mentioned key is changed to key-press status from non-key-press status, simultaneously from the base plate of the above-mentioned key board unit bottom drive division of outstanding driver element downwards, the driving mechanism of above-mentioned driver element is arranged near the rotating fulcrum of above-mentioned mass, in the 2 row configurations of key board unit integral body along front and back, driving mechanism corresponding to adjacent key is arranged on the different lines simultaneously, in the driving mechanism that front and back 2 row are provided with, compare with rank rear, the driving stroke in prostatitis is little, and the overhang of bottom is little; Be provided with the drive division lid that covers above-mentioned drive division simultaneously, the drive division lid is of a size of suitable dimensions, and the set positions of the foot of drive division lid is in the horizontal direction 170mm of the installation root that leaves pedal.
According to the electric keyboard instrument of first scheme of the present invention or alternative plan, preferably, with the bottom that key board unit is set (for example shelf) integrated formation drive division lid.
In addition, in first scheme, the position near rotating fulcrum drives the driving mechanism of wishing driver element to the centre position between the free end of mass to leaving rotating fulcrum from mass.Also have, though the adjacent white key and the driving mechanism separately of black key are the different lines of front and back, since near the driving stroke of the driving mechanism of the rotating fulcrum of mass less than driving stroke away from the driving mechanism of the rotating fulcrum of mass, therefore can make with key and black key in vain by identical from the rotational action of the corresponding mass of key.That is, driving mechanism produces different driving strokes in 2 row of front and back.
Also have, in first scheme, wish that drive division is equipped with the driver element substrate that driver element is driven, and this driver element is fixed on the inside of base plate (shelf etc.) with substrate.In addition, wish that driver element and driver element dispose on fore-and-aft direction side by side with substrate this moment.Like this, and compare with the situation of substrate with driver element, can suppress the height of drive division in configuration driven unit up and down.
Electric keyboard instrument according to first scheme, because driving mechanism is disposed near the rotating fulcrum of the mass of hammer tectosome etc., therefore can correspondingly reduce the height of driving mechanism (and driver element), reduce to the outstanding part in the bottom of musical instrument body, thereby when the player carries out pedal operation, can not hinder pin.
In addition, owing to be provided with rake, therefore more can not hinder the player in the front side of drive division lid.
In addition, owing in the driving mechanism that front and back 2 row are provided with, compare with rank rear, the driving stroke in prostatitis is little, and the overhang of bottom is little, and therefore the rake of drive division lid more can not hinder the player till extending to the driving mechanism of front side towards the rear of musical instrument body bottom always.
Electric keyboard instrument according to alternative plan, can obtain the effect identical with first scheme, because the set positions of the foot of drive division lid in the horizontal direction 170mm of the installation root that leaves pedal, therefore can suitably be set the drive division lid, make it not hinder the player simultaneously.
In addition, owing to cover, therefore do not need to carry out the fitting operation of drive division lid with the integrated formation drive division in bottom.
Description of drawings
Fig. 1 is the sectional view of key position of the electric keyboard instrument of the 1st example of the present invention.
Fig. 2 is the Zoom Side sectional view of the driver element of same electric keyboard instrument.
Fig. 3 is the exterior sideview figure of same electric keyboard instrument.
Fig. 4 is the ground plan of same electric keyboard instrument.
Fig. 5 is the key diagram that the configuration of the screwed pipe unit in the example and its diameter and device are in the past compared.
Fig. 6 is the sectional view of key position of the electric keyboard instrument of the 2nd example of the present invention.
Symbol description
The 1-key board unit, 2-driver element (drive division), 3-driver element substrate (drive division), 4,104 '-drive division lid, 10,10 '-base plate, 10a-peristome, the 12-key, 13-hammer tectosome (mass), 21-bottom yoke, 22-top yoke, 23-screwed pipe unit, 24-plunger, 231-bobbin, the 232-coil, 41,1041 '-dip plane (rake), 90-pedal, the 100-musical instrument body, the O1-key shakes fulcrum, the O2-rotating fulcrum
Embodiment
Below, the example that present invention will be described in detail with reference to the accompanying.Fig. 1 is the sectional view of key position of the electric keyboard instrument of the 1st example.Fig. 2 is the Zoom Side sectional view of the driver element of same electric keyboard instrument.Fig. 3 is the exterior sideview figure of same electric keyboard instrument.Fig. 4 is the ground plan of same electric keyboard instrument.In addition, in the drawings, suitably omitted the oblique line in expression cross section.The left side of the drawing among Fig. 1 and Fig. 3 is player's side, and the direction vertical with the drawing of Fig. 1 and Fig. 3 is the key orientation.Below, in this electronic musical instrument and key board unit, the player's side during with performance is called " preceding ", is called with opposition side " back ".
This electric keyboard instrument is a pianotron, as shown in Figure 3 and Figure 4, musical instrument body 100 have the level that is equivalent to shelf base plate 10, be configured in the sidepiece of key board unit 1 on the base plate 10, overlay keyboard device 1 side plate 20, be configured in the square rod 30 etc. of the front portion of key board unit 1.Also have, the place ahead pin 40 of supporting musical instrument body 100 is installed on the leading section of the side plate 20 of musical instrument body 100.
In the rear portion side of musical instrument body 100, be provided with the pair of right and left loudspeaker enclosure 50,50 (Fig. 4) of accommodating and keeping the loudspeaker of pair of right and left, between this loudspeaker enclosure 50,50, be provided with the preceding case 60 of accommodating device with pedal and electric power loop etc.This loudspeaker enclosure 50,50 and preceding case 60 constitute the rear pin.Also have, top in the rear portion side of musical instrument body 100, be provided with the rear screen board 70 with the roughly the same width of above-mentioned rear pin,, be provided with rear, the side screen board 80,80 that has to the height of the upper end of rear screen board 70 simultaneously at the two ends of loudspeaker enclosure 50,50 and rear screen board 70.In the place ahead, bottom of preceding case 60, the pedal 90 of device with pedal is exposed to player's side.
As shown in Figure 1, key board unit 1 utilizes key framework 11 to be fixed on the base plate 10, and key board unit 1 has the many keys 12 that combine with the support sector 111 at the rear portion of this key framework 11.In addition, key framework 11 is fixed on the base plate 10 by the 11A of the place ahead foot, the 11B of rear foot and the auxiliary 11C of foot.This key 12 is provided with along the key orientation is parallel, and shaking fulcrum O1 with the key of support sector 111 respectively is the center, can shake along the vertical direction.Also have, be formed with the service portion 121 that under key, extends on the key 12.
Below key 12, be provided as the hammer tectosome 13 of " mass ", this hammer tectosome 13 is by the quality rod 131 that extends along fore-and-aft direction and keep the operating member 132 of the end of this quality rod 131 to constitute.By allowing the recess 132a of operating member 132 combine, make that this hammer tectosome 13 is supported and can serve as spool and freely rotate with rotating fulcrum O2 with the support sector 112 that on key framework 11, forms.The front end of operating member 132 is formed with two gangs of brace 132b that separate up and down.The web joint 121a that forms in the lower end of the service portion 121 of key 12 is connected with this brace 132b.Therefore, when the button of key 12, its service portion 121 is pressed the operating member 1 32 of hammer tectosome 13, and hammer tectosome 13 is a center of rotation with rotating fulcrum O2, rotates along the counter clockwise direction among the figure.Also have, from key the time,, hammer key 12 homings of the rotation interlock of tectosome 13 into shape with this because the deadweight of quality rod 132 is rotated along the clockwise direction among the figure.The steady arm 14,15 of felt etc. is installed on the bottom, rear of key framework 11 and bottom, rear in addition.Utilize this steady arm 14,15, the slewing area of restriction hammer tectosome 13.Also have, at the front side of key framework 11, be provided with key 12 by from the corresponding bond switching 16 of key by hammer tectosome 13 on/off.
Also have, driver element 2 has screwed pipe unit 23
F, 23
RAnd the plunger 24 of conduct " driving mechanism "
F, 24
RThe subscript of this symbol " F " expression " front side " parts (front), " R " expression " rear side " parts (rear).In the following description, when not distinguishing " front side " and " rear side " (not specific), suitably omit subscript.Screwed pipe unit 23 forms for coiling 232 on the resinous bobbin 231 of nonmagnetic material, and plunger 24 is configured in this bobbin 231.In addition, the buffer unit of being made up of elastomeric element 241 is installed in the upper end of plunger 24.
Above-mentioned driver element 2 and above-mentioned driver element use substrate 3 to constitute " drive division ", below base plate 10, drive division lid 4 are installed, to cover opening 10a, above-mentioned driver element 2 and driver element substrate 3.Drive division lid 4 has the dip plane 41 as " rake " in the front side, form the elongated slot shape along the key orientation.Also have, drive division lid 4 has flange portion 42,43 in front and back, and this flange portion 42,43 utilizes the screw contact to be fixed on the inside of base plate 10, is installed on the base plate 10.
Utilize said structure, when use substrate 3 after coil 232 energisings of screwed pipe unit 23 from driver element, form the magnetic circuit by bottom yoke 21, top yoke 22 and plunger 24, plunger 24 further projects upwards from top yoke 22.Like this, the buffer unit 241 of plunger 24 upwards promotes the operating member 132 or the quality rod 131 of hammer tectosome 13, and hammer tectosome 13 rotates counterclockwise as shown in Figure 1, and key 12 is pulled down, and forms the state identical with button.In addition, the plunger 24 of front side
FOperating member 132 is driven the plunger 24 of rear side
R Confrontation length bar 131 drives.On the other hand, after the energising that disconnects coil 232, above-mentioned magnetic circuit disappears, because the deadweight of hammer tectosome 13 clockwise rotates as shown in Figure 1, key 12 is pushed upwardly, be in from the identical state of key.
Like this, plunger 24
F, 24
RContrast drives to the position of the more close rotating fulcrum O2 in the centre position of free end F from the rotating fulcrum O2 of hammer tectosome 13.Also have, because 2 adjacent hammer tectosomes 13 rotate identical angle, so the plunger 24 of front side
FPlunger 24 than rear side
RStroke little.Like this, as shown in Figure 2, the bobbin 231 of front side
FWith plunger 24
FBobbin 231 than rear side
RWith plunger 24
RShort.Also have, since same reason, plunger 24
F, 24
RThe closer to the rotating fulcrum O2 of hammer tectosome 13, its stroke and size just can be more little.
That is, because with plunger 24
F, 24
RWith screwed pipe unit 23
F, 23
RNear the rotating fulcrum O2 of hammer tectosome 13, dispose, therefore can correspondingly reduce plunger 24
F, 24
RWith screwed pipe unit 23
F, 23
RHeight, reduce from the outstanding downwards parts of base plate 10, thereby can not hinder the player to carry out operations such as pedal.Also have, because the bobbin 231 of the front side of drive division lid 4
FWith plunger 24
FHeight little, so its dip plane 41 is at bobbin 231
FWith plunger 24
FFore-and-aft direction extend to the end.Like this, because extend to the rear of base plate 10 dip plane 41, therefore more can not hinder the player.
Here, the screwed pipe unit 23 of front side
FScrewed pipe unit 23 with rear side
RMutually with the corresponding setting of key of adjacency.That is, shown in Fig. 5 (A), screwed pipe unit 23
FWith screwed pipe unit 23
RForm front and back row, screwed pipe configuration of cells in front and back different list corresponding respectively along the key orientation with adjacent key.Therefore, the screwed pipe unit 23
F, 23
RDiameter D can be greater than the spacing p of key.Corresponding therewith, if shown in Fig. 5 (B), list configuration screwed pipe unit 23 ' 1, then the diameter d of this screwed pipe unit 23 ' can not be greater than the spacing p of key.
On the other hand, though plunger 24 the closer to the rotating fulcrum O2 of hammer tectosome 13, needed driving is just strong more because as mentioned above, the screwed pipe unit 23 corresponding with adjacent key
F, 23
RDifferent listing before and after being configured in, thus screwed pipe unit 23 can be increased
F, 23
RDiameter D, can easily utilize plunger 24 to obtain strong driving force, so can make plunger 24 as close as possible rotating fulcrum O2.Therefore, can reduce from the outstanding downwards amount of base plate 10.
Also have, as shown in Figure 3, the set positions of the foot AA of the drive division of cover driving unit 2 lid 4 at the horizontal direction 170mm of the installation root 90A that leaves pedal 90 with interior (or leaving more than the front end 100mm of key 12).Like this, when the player utilized the pin operating pedal, this drive division lid 4 can not hinder the player.
In addition, in the 1st example, the peristome 10a of base plate 10 is along the roughly overall length upper shed of key orientation, but the bottom yoke 21 (and drive division lid 4) of the edge portion of the front and back of this peristome 10a by driver element 2 link together, and therefore can keep the rigidity of base plate 10.Also have, bottom yoke 21 and top yoke 22 are the groove shape, and its cross section has " コ " word shape respectively, so 2 cross section torques increases of bottom surface 10 integral body, and musical instrument integral body 100 is also more firm.
Fig. 6 is the sectional view of key position of the electric keyboard instrument of the 2nd example of the present invention.The key element identical with Fig. 1 then adopts the portion identical with Fig. 1 number, omits its detailed description.In this example, corresponding with the base plate 10 of above-mentioned example, have utilization and for example have the hard resin of rigidity or the base plate 10 ' that metal forms.Also have, in this base plate 10 ', cover 4 corresponding drive division lids 104 ' and bottom 10 ' integrated formation with the drive division of above-mentioned example.Drive division lid 104 ' has the dip plane 1041 ' of slight curvature in the front side.In addition, driver element 2 and driver element are installed on the cover hub 105 ' that forms in the inboard of drive division lid 104 ' with substrate 3.The 2nd example also can obtain the various effects identical with the 1st example.
In above-mentioned the 1st example, on base plate 10, be formed with rectangular peristome 10a, but also can form the plurality of holes corresponding with the plunger 24 of each key.At this moment, driver element can be arranged on the inside of base plate 10.
Also have, base plate 10,10 ' also can be plastic molded article, metal (sheet metal, aluminium extrusion etc.).
Also have, also can be as the homing of the hammer tectosome of mass not by deadweight, and utilize spring etc. to make its homing.
Also have, in example, the dip plane (rake) 41 of drive division lid 4,104 ', the 1041 ' leading section from this drive division lid 4,104 ' form, but the front end of wishing this dip plane is the installation root 90A from pedal 90, and the position in the specialized range (leaving in the 200mm that root 90A is installed) of the leading section that leaves the drive division lid is down rake rearward.
Explanatory note in the accompanying drawing
Fig. 1
The 1-key board unit, 2-driver element (drive division), the 3-driver element covers with substrate (drive division), 4-drive division, the 10-base plate, the 10a-peristome, the 12-key, 13-hammers tectosome (mass), 24 into shape
F-preceding lateral contact pin (driving mechanism), 24
R-back lateral contact pin (driving mechanism), the O1-key shakes fulcrum, the O2-rotating fulcrum
Fig. 3
100 mass
Fig. 5
The rank rear prostatitis
Claims (3)
1. electronic keyboard device is equipped with the key board unit with a plurality of mass that can distinguish a plurality of keys of joltily being provided with and rotate linkedly with this key and be provided with corresponding to each key, it is characterized in that:
Be equipped with have the key that is arranged on above-mentioned key board unit shake fulcrum the anterior position place, utilize driving mechanism rotate above-mentioned mass, with above-mentioned key from non-key-press status be changed to key-press status, simultaneously from the base plate of the above-mentioned key board unit bottom drive division of outstanding driver element downwards
With the driving mechanism of above-mentioned driver element near the rotating fulcrum of above-mentioned mass, in the 2 row configurations of key board unit integral body along front and back, driving mechanism corresponding to adjacent key is arranged on the different lines simultaneously, in the driving mechanism that front and back 2 row are provided with, compare with rank rear, the driving stroke in prostatitis is little, and the overhang of bottom is little;
And the drive division lid that covers drive division is set, above-mentioned drive division lid also has near the forequarter rake of lower tilt rearward, and the rake of above-mentioned drive division lid extends to till the driving mechanism in prostatitis always.
2. electronic keyboard device is equipped with the key board unit with a plurality of mass that can distinguish a plurality of keys of joltily being provided with and rotate linkedly with this key and be provided with corresponding to each key, it is characterized in that:
Be equipped with have the key that is arranged on above-mentioned key board unit shake fulcrum the anterior position place, utilize driving mechanism rotate above-mentioned mass, with above-mentioned key from non-key-press status be changed to key-press status, simultaneously from the base plate of the above-mentioned key board unit bottom drive division of outstanding driver element downwards
The driving mechanism of above-mentioned driver element is arranged near the rotating fulcrum of above-mentioned mass, in the 2 row configurations of key board unit integral body along front and back, driving mechanism corresponding to adjacent key is arranged on the different lines simultaneously, in the driving mechanism that front and back 2 row are provided with, compare with rank rear, the driving stroke in prostatitis is little, and the overhang of bottom is little;
Be provided with the drive division lid that covers above-mentioned drive division simultaneously, the set positions of the foot of above-mentioned drive division lid is in the horizontal direction 170mm of the installation root that leaves pedal.
3. electronic keyboard device according to claim 1 and 2 is characterized in that:
Above-mentioned drive division lid and the integrated formation in bottom that above-mentioned key board unit is set.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007000661 | 2007-01-05 | ||
| JP2007000661 | 2007-01-05 | ||
| JP2007-000661 | 2007-01-05 | ||
| JP2007177120A JP5092591B2 (en) | 2007-01-05 | 2007-07-05 | Electronic keyboard instrument |
| JP2007-177120 | 2007-07-05 | ||
| JP2007177120 | 2007-07-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101217029A CN101217029A (en) | 2008-07-09 |
| CN101217029B true CN101217029B (en) | 2011-09-14 |
Family
ID=39623452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100002177A Expired - Fee Related CN101217029B (en) | 2007-01-05 | 2008-01-07 | Electronic keyboard musical instrument |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5092591B2 (en) |
| CN (1) | CN101217029B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5605454B2 (en) * | 2013-04-04 | 2014-10-15 | ヤマハ株式会社 | Electronic keyboard instrument |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6002078A (en) * | 1992-08-10 | 1999-12-14 | Yamaha Corporation | Keyboard assembly for electronic musical instrument |
| CN1828719A (en) * | 2005-03-04 | 2006-09-06 | 雅马哈株式会社 | Automatic player accompanying singer on musical instrument and automatic player musical instrument |
| CN1838227A (en) * | 2005-03-23 | 2006-09-27 | 雅马哈株式会社 | Adjuster for relative position between actuators and objects, automatic player equipped therewith and musical instrument having the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0310550Y2 (en) * | 1986-03-14 | 1991-03-15 | ||
| JP3988693B2 (en) * | 2003-08-07 | 2007-10-10 | ヤマハ株式会社 | Locking device |
| JP4218520B2 (en) * | 2003-12-26 | 2009-02-04 | ヤマハ株式会社 | Actuator unit for performance operator, keyboard instrument including the actuator unit, and assembly of the actuator unit |
-
2007
- 2007-07-05 JP JP2007177120A patent/JP5092591B2/en not_active Expired - Fee Related
-
2008
- 2008-01-07 CN CN2008100002177A patent/CN101217029B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6002078A (en) * | 1992-08-10 | 1999-12-14 | Yamaha Corporation | Keyboard assembly for electronic musical instrument |
| CN1828719A (en) * | 2005-03-04 | 2006-09-06 | 雅马哈株式会社 | Automatic player accompanying singer on musical instrument and automatic player musical instrument |
| CN1838227A (en) * | 2005-03-23 | 2006-09-27 | 雅马哈株式会社 | Adjuster for relative position between actuators and objects, automatic player equipped therewith and musical instrument having the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101217029A (en) | 2008-07-09 |
| JP5092591B2 (en) | 2012-12-05 |
| JP2008186008A (en) | 2008-08-14 |
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| C06 | Publication | ||
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Granted publication date: 20110914 Termination date: 20190107 |