CN101681615B - Shift device for piano keyboard and method of adjusting shift device for piano keyboard - Google Patents
Shift device for piano keyboard and method of adjusting shift device for piano keyboard Download PDFInfo
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- CN101681615B CN101681615B CN2008800113604A CN200880011360A CN101681615B CN 101681615 B CN101681615 B CN 101681615B CN 2008800113604 A CN2008800113604 A CN 2008800113604A CN 200880011360 A CN200880011360 A CN 200880011360A CN 101681615 B CN101681615 B CN 101681615B
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- wooden frame
- screw
- keyseat
- slip
- crossbearer
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- 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
- G10C3/12—Keyboards; Keys
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
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- Electrophonic Musical Instruments (AREA)
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Abstract
A shift device for a piano keyboard, which facilitates adjustment of the position in height of a wooden slide frame and in which the position in height of the wooden slide frame can be stably held for a long period to prevent impact sound in playing a key. The shift device (1) for a piano keyboard has a key bed (7), a wooden slide frame (9) having a front lateral member (17), a middle lateral member (19), a rear lateral member (21), and longitudinal members (23), shift means (11) for sliding the wooden slide frame (9), and height position adjustment means (13) for adjusting the position in height of the wooden slide frame (9) relative to the key bed (7). The height position adjustment means (13) is constructed from a point base pin (31), a shift guide screw (35), and a base screw (41) to enable the wooden slide frame (9) to slide relative to the key bed (7) without contact.
Description
Technical field
The control method of the shift unit of the fingerboard of the strike note when the present invention relates to adjusting easily and not producing keystroke and the shift unit of this fingerboard.
Background technology
The shift unit of fingerboard has: keyseat, be called as " crossbearer " the slip wooden frame, be used to make the shift mechanism that the slip wooden frame slides and carry out the height and position governor motion of above-mentioned slip wooden frame with respect to the position adjustments of the short transverse of keyseat.
Fig. 6 is the vertical profile side view of an example that the shift unit of existing fingerboard is shown.In the shift unit of existing fingerboard, on the preceding crossbearer 103 of slip wooden frame 101 and back crossbearer 105, be provided with outstanding protuberance 107 downwards, the sliding contact on keyseat 109 of the lower surface of this protuberance 107, thus, wooden frame 101 slip of the direction direction of paper quadrature (among the Fig. 6 with) to the left and right of sliding.
But keyseat 109 and slip wooden frame 101 are made by timber basically, thus be subjected to the influence of temperature, humidity and external force, in any case also can occur warpage knifeedge and reverse.Therefore, the gap occurs between the protuberance 107 of slip wooden frame 101 and keyseat 109, when keystroke, the lower surface of slip wooden frame 101 hits the upper surface of keyseat 109 and produces strike note, perhaps possibly can't expect to slide smoothly.
And, existing height and position governor motion 111 as the position adjustments of the delicate short transverse of carrying out keyseat 109 and slip wooden frame 101, use following mechanism shown in Figure 6: this mechanism has displacement guiding adjustable plate 113, regulates guide roller 115, adjustable plate tip 117 and is located at the inboard and 2 kinds of adjustable plates in the outside are installed spiral shells 119,121.
Regulating under the situation of slip wooden frame 101 with respect to the height and position of keyseat 109 by this height and position governor motion 111, the teat 123 outstanding to the below of displacement guiding adjustable plate 113 offsets with the upper surface of imbedding the adjustable plate tip 117 in the keyseat 109, thus, by regulating 2 adjustable plates the fastening situation of spiral shell 119,121 is installed, act on the power of regulating guide roller 115 thereby change, the wooden frame 101 that slides is regulated with respect to the delicate height of keyseat 109.
But because displacement guiding adjustable plate 113 is moved as lever, therefore the power that can apply sense of rotation to the preceding crossbearer 103 and the back crossbearer 105 of slip wooden frame 101, possibly can't carry out the adjusting of high-precision height and position.
And, be used to keep by above-mentioned height and position governor motion 111 carry out the slip wooden frame 101 after the position adjustments of short transverse posture base screw 125 as shown in the figure, before not being arranged on crossbearer 103 and the back crossbearer 105, and only be located at middle crossbearer 104 that height and position governor motion 111 separates on.
Therefore, under the situation of becoming flexible 2 adjustable plates installation screws 119,121 knifeedge, the height and position of the benchmark of slip wooden frame 101 can stagger, the gap appears between slip wooden frame 101 and keyseat 109, when keystroke, the upper surface butt of the lower surface of slip wooden frame 101 and keyseat 109 also may produce strike note.
Summary of the invention
The present invention finishes according to the existing problem points of above-mentioned background technology, its problem that will solve is, the control method of the shift unit of the shift unit of following fingerboard and fingerboard is provided: the adjusting of the height and position of slip wooden frame 101 is easy, the height and position of the slip wooden frame 101 after can keeping steadily in the long term regulating, and the strike note when not producing keystroke.
In order to solve above-mentioned problem, the described invention in the 1st aspect is a kind of shift unit of fingerboard, be applied to it is characterized in that the shift unit of this fingerboard has: keyseat in the piano of the structure of direction slip to the left and right under the state of keyboard and the assembling of hammered string instrument one; The slip wooden frame is positioned on this keyseat, by the preceding crossbearer of direction slip to the left and right under the state of keyboard and the assembling of hammered string instrument one, middle crossbearer, back crossbearer and vertical being configured to; Shift mechanism is used to make this slip wooden frame to slide; And the height and position governor motion, carrying out the position adjustments of described slip wooden frame with respect to the short transverse of keyseat, the height and position governor motion has: contact heel pin, the altitude datum of setting slip wooden frame; Displacement guider screw, guided slidable wooden frame be moving of direction to the left and right, and set the height and position of slip wooden frame with respect to keyseat; And base screw, keeping passing through the height and position of the slip wooden frame of this displacement guider screw setting with respect to keyseat, the slip wooden frame constitutes with respect to keyseat and slides with contactless state.
In the shift unit of the described invention in the 2nd aspect described fingerboard aspect the 1st, it is characterized in that, described displacement guider screw be arranged on described contact heel pin near.
In the shift unit of the described invention in the 3rd aspect described fingerboard aspect the 1st or the 2nd, it is characterized in that, on described slip wooden frame, be formed with long guiding hole, this long guiding hole is taken in described displacement guider screw, and comes guided slidable wooden frame moving of direction to the left and right by engaging with the displacement guider screw.
In the shift unit of the described invention in the 4th aspect described fingerboard aspect the 3rd, it is characterized in that, be provided with guide roller with the state that can dally on described displacement guider screw, described long guiding hole and displacement guider screw are via this guide roller sliding contact.
In the shift unit of the described invention in the 5th aspect described fingerboard aspect the 1st～the 4th, it is characterized in that, the position, the left and right sides and the centre position of crossbearer and back crossbearer before described contact heel pin and displacement guider screw are arranged on, the pars intermedia at the position that is provided with described contact heel pin and displacement guider screw of crossbearer and back crossbearer and a plurality of positions of middle crossbearer before described base screw is arranged on.
The described invention in the 6th aspect is a kind of control method of shift unit of fingerboard, use the height and position governor motion in the shift unit of each the described fingerboard in the 1st～the 5th aspect to carry out, it is characterized in that, the control method of the shift unit of this fingerboard has following operation: contact heel pin installation procedure, from the below with the contact heel pin be pressed into and be installed to one be assembled with preceding crossbearer, in the slip wooden frame of crossbearer, back crossbearer and vertical frame; The temporary fixed operation of base screw is inserted into the described slip wooden frame while from the top base screw screwed in, and the lower surface that makes the lower surface of base screw and slip wooden frame is for one side; The fastening operation of displacement guider screw on keyseat, is screwed into the displacement guider screw with described slip wooden frame mounting, sets the height and position of slip wooden frame with respect to keyseat; And base screw screw in to regulate operation, and keyboard and hammered string instrument are assembled on the slip wooden frame, further screws in base screw, makes the lower surface of base screw and the upper surface butt of keyseat, the height and position of the wooden frame that keeps sliding.
Shift unit according to fingerboard of the present invention, because slip wooden frame and keyseat are with the contactless state setting, what contact with the keyseat upper surface slide is the lower surface of the contact heel pin that formed by the high metallic alloy of machining precision and the lower surface of base screw, so can be for a long time the height and position of slip wooden frame 101 be kept in position.
And, be arranged at the guider screw that will be shifted under near the situation the contact heel pin of the altitude datum that is used to set the slip wooden frame, can not be subjected to the influence of the warpage etc. of keyseat and slip wooden frame, prevent of delicate float of contact heel pin from keyseat.
The slip wooden frame is provided with under the situation of the long guiding hole that engages with the guider screw that is shifted, except preventing the function that the contact heel pin floats of above-mentioned displacement guider screw, can also make the slip wooden frame to the left and right direction slide.
And, being provided with under the situation of guide roller on the guider screw in displacement, guide roller contacts with the long guiding hole rolling of slip wooden frame, so the slip of direction to the left and right of slip wooden frame is smooth and easy.
Before contact heel pin and displacement guider screw are arranged on 6 places in crossbearer and position, the left and right sides of crossbearer, back and centre position, base screw is arranged on above-mentioned contact heel pin and is shifted between the guider screw and under the situation at a plurality of positions of middle crossbearer, the suitable height and position of the wooden frame that can keep stably in a long term sliding.
According to the control method of the shift unit of fingerboard of the present invention, owing to determine the altitude datum of slip wooden frame by the contact heel pin, the slip wooden frame that guider screw carried out that is shifted is easy with respect to the setting of the height and position of keyseat.
Description of drawings
Fig. 1 is the stereographic map of shift unit that the fingerboard of embodiments of the present invention is shown.
Fig. 2 is the vertical view (a) and the vertical profile front view (b) of shift unit that the fingerboard of embodiments of the present invention is shown.
Fig. 3 is the exploded perspective view of major part that amplifies the shift unit of the fingerboard that embodiments of the present invention are shown.
Fig. 4 is the vertical view (a) and the vertical profile front view (b) of major part that amplifies the shift unit of the fingerboard that embodiments of the present invention are shown.
Fig. 5 is the vertical profile side view of shift unit that the fingerboard of embodiments of the present invention is shown.
Fig. 6 is the vertical profile side view that the shift unit of existing fingerboard is shown.
Label declaration
1: the shift unit of fingerboard; 3: Bai Jian; 5: black key; 7: keyseat; 9: the slip wooden frame; 11: shift mechanism; 13: the height and position governor motion; 15: transverse arm; 17: preceding crossbearer; 19: middle crossbearer; 21: the back crossbearer; 23: vertical frame; 25: damper bar track bearing; 27: the hammered string instrument frame; 29: the hammered string instrument erecting bed; 31: the contact heel pin; 33: be pressed into mouth; 35: the displacement guider screw; 37: long guiding hole; 39: guide roller; 41: base screw; 43: threaded hole; 45: push rod on the shift rod; 47: shift rod; 49: shift spring; 51: the displacement auxiliary spring; 53: leading section; 55: openings; 57: head; 59: contact heel pin fixed screw; 61: threaded hole; 63: sliding contact surface; 65: slot; 67: the lower surface; X: left and right directions; Y: fore-and-aft direction; Z: short transverse; S: gap.
Embodiment
Below, as the shift unit of fingerboard of the present invention be used to implement the best mode of control method of the shift unit of fingerboard, be that example specifies with Fig. 1～embodiment shown in Figure 5.
The control method of the shift unit 1 of fingerboard of the present invention and the shift unit of fingerboard is applied to have the upright piano and the grand piano of following structure: under the state of 2 kinds of keyboards that are made of white key 3 and black key 5 and the assembling of the hammered string instrument one that is made of damper hammered string instrument and hammer hammered string instrument, direction X slides to the left and right.
The shift unit 1 of fingerboard has: the slip wooden frame 9 that is called as " crossbearer " of keyseat 7, direction X slip to the left and right on keyseat 7, the shift mechanism 11 and the height and position governor motion 13 of wooden frame 9 with respect to the position adjustments of the short transverse Z of keyseat 7 that slide that slip wooden frame 9 is slided.
Keyseat 7 is flat parts that supporting constitutes the horizontal arrangement of the white key 3 of keyboard and black key 5, erects transverse arm 15,15 upward from the both ends of the upper surface of keyseat 7.
The rear portion of the upper surface of keyseat 7 towards above erected damper bar track bearing 25.
Slip wooden frame 9 constitutes by one assembling and preceding crossbearer 17, middle crossbearer 19, the back crossbearer 21 of left and right directions X configured in parallel and 3 vertical framves 23 that dispose on fore-and-aft direction Y.
As shown in the figure, the back crossbearer 21 of slip wooden frame 9 is provided with hammered string instrument erecting bed 29, and this hammered string instrument erecting bed 29 is used for the hammered string instrument frame 27 of mounting support hammered string instrument.
On the preceding crossbearer 17 and back crossbearer 21 of slip wooden frame 9, total 6 places in position, the left and right sides and centre position, be used for being pressed into from the below contact heel pin (point base pin) 31 as the component parts of height and position governor motion 13 described later be pressed into mouthfuls 33 and the long guiding hole 37 of taking in displacement guider screw 35 from the top be separately positioned near position.
Long guiding hole 37 is the stair-stepping slotted holes that extend along left and right directions X, can in the slotted hole on the big top of bore, take in the head of displacement guider screw 35, be embedded with the axial region of displacement guider screw 35 of the state of aftermentioned guide roller 39 outside in the slotted hole of the little bottom of bore, taking in.
And, on slip wooden frame 9, be provided with 10 threaded holes 43 that screw with base screw 41 described later altogether, this threaded hole 43 is provided with 5 in above-mentioned other centre position of branch that is pressed into mouth 33 and long guiding hole 37 that is provided with 6 pairs, and middle crossbearer 19 is provided with 5.
90 ° of leading section 53 bendings of shift rod 47 are projected on the keyseat 7 from the perforation 55 that is formed at keyseat 7, and link with the back crossbearer 21 that is arranged in the slip wooden frame 9 on the keyseat 7.
Height and position governor motion 13 has: contact heel pin 31, the altitude datum of setting slip wooden frame 9; Displacement guider screw 35, guided slidable wooden frame 9 be moving of direction X to the left and right, and set the height and position of slip wooden frame 9 with respect to keyseat 7; And base screw 41, keep passing through the height and position of the slip wooden frame 9 of displacement guider screw 35 settings with respect to keyseat 7.
As an example, contact heel pin 31 is brazen pins that have the pole shape of head 57 in the bottom, carves at the axial region center and is provided with threaded hole 61, and this threaded hole 61 screws with the contact heel pin fixed screw 59 that is used for contact heel pin 31 is fixed in slip wooden frame 9.
As an example, displacement guider screw 35 is parts of brazen wood snail line shape, on the top of axial region of the head side that is positioned at displacement guider screw 35, forms not carve and does not establish externally threaded sliding contact surface 63.
And, be embedded in the mode of sliding contact surface 63 in addition, the guide roller 39 that has flange on top is installed with the state that can dally.
Therefore, displacement guider screw 35 and not directly sliding contact of long guiding hole 37, but constitute via above-mentioned guide roller 39 rolling contacts.
The lower surface 67 of base screw 41 is the sliding contact surfaces that contact with the upper surface slide of keyseat 7, and is same with the lower surface of the head 57 of above-mentioned contact heel pin 31, forms smoothly.
Therefore, in the present invention, the part of slip wooden frame 9 and keyseat 7 direct sliding contacts is not set, but with contactless state slip wooden frame 9 and keyseat 7 being set across gap S, this gap S is determined from the outstanding overhang of the lower surface of slip wooden frame 9 by the height and the above-mentioned base screw 41 of the head 57 of contact heel pin 31.
And, displacement guider screw 35 and the above-mentioned configuration that is pressed into mouth 33 and long guiding hole 37 that is formed at slip wooden frame 9 be arranged on relevantly contact heel pin 31 near, this contact heel pin 31 is used to set the altitude datum of slip wooden frame 9 with respect to keyseat 7.
In the present invention, by fastening displacement guider screw 35, thereby slip wooden frame 9 is directly acted on power to the below of short transverse Z, because the position is provided with displacement guider screw 35 near contact heel pin 31 as mentioned above, acts on hardly on the slip wooden frame 9 so become the power of the sense of rotation of problem in the shift unit of existing fingerboard.
The control method of the shift unit of the fingerboard of the present invention that the shift unit 1 of the fingerboard that uses this formation carries out then, is described.
The control method of the shift unit of fingerboard of the present invention constitutes, and carries out (1) contact heel pin installation procedure, the temporary fixed operation of (2) base screw, the fastening operation of (3) displacement guider screw, (4) base screw screw-in adjusting operation successively.
(1) contact heel pin installation procedure
Contact heel pin installation procedure is following operation: before the below is pressed into contact heel pin 31 and be installed to one and is assembled with crossbearer 17, in the slip wooden frame 9 of crossbearer 19, back crossbearer 21 and vertical frame 23.
When the installation of contact heel pin 31, use above-mentioned contact heel pin fixed screw 59, contact heel pin fixed screw 59 from threaded hole 61 on the end face of carving the axial region of being located at contact heel pin 31 is inserted and be fastened in the top, is carried out the installation of contact heel pin 31 thus.
(2) the temporary fixed operation of base screw
The temporary fixed operation of base screw is following operation: insert the slip wooden frame 9 while from the top base screw 41 screwed in, the lower surface 67 that makes base screw 41 and the lower surface of slip wooden frame 9 are for one side.
Promptly, base screw 41 is inserted in the threaded hole 43 that is formed at slip wooden frame 9, engaging fastened tools and rotating makes base screw 41 enter in the threaded hole 43 thus in slot 65, becomes base screw 41 not from the state of the outstanding same one side of the lower surface of slip wooden frame 9.
(3) the fastening operation of displacement guider screw
The fastening operation of displacement guider screw is following operation: slip wooden frame 9 mountings on keyseat 7, are screwed into displacement guider screw 35, thereby set the height and position of slip wooden frame 9 with respect to keyseat 7.
That is, be embedded in outside making guide roller 39 under the state of sliding contact surface 63 of displacement guider screw 35, the guider screw 35 that will be shifted inserts the long guiding hole 37 from the top and screws in, on the keyseat 7 below the guider screw 35 that will be shifted thus is fixed on.
The fastening situation of displacement guider screw 35 is delicate, regulates in the scope that slip wooden frame 9 can slide smoothly, so that the gap between the upper surface of the lower surface of the head 57 of contact heel pin 31 and keyseat 7 is infinitely near 0.
(4) base screw screws in and regulates operation
Base screw is screwed into and regulates operation is following operation: assembling constitutes white key 3 and the black key 5 and the hammered string instrument of keyboard on slip wooden frame 9, further be screwed into base screw 41, make the lower surface 67 of base screw 41 and the upper surface butt of keyseat 7, the height and position of the wooden frame 9 that keeps sliding.
That is, the hammered string instrument frame 27 of the state of the hammered string instrument after supporting assembling finished is arranged on the upper surface of hammered string instrument erecting bed 29, and white key 3 and black key 5 is embedded into the position except the position that base screw 41 is installed of slip wooden frame 9.
Under this state, in the scope that slip wooden frame 9 can slide smoothly, regulate the screw-in situation of base screw 41, so that the gap between the upper surface of the lower surface 67 of base screw 41 and keyseat 7 is infinitely near 0.
More than, as being used to implement best mode of the present invention, be that example is described in detail with illustrated embodiment, but, concrete formation of the present invention is not limited to illustrated embodiment, has design alteration in the scope do not break away from purport of the present invention etc., is also contained among the present invention.
For example, the quantity and the configuration of contact heel pin 31, displacement guider screw 35, base screw 41 can increase and decrease in the scope of the shift unit 1 that can regulate fingerboard as described above swimmingly.
Industrial applicibility
The present invention can be used under the state that keyboard and hammered string instrument are assembled integratedly in the manufacturing, use field of the piano of the structure that direction to the left and right slides etc., has utilizability under the situation of slip wooden frame to the strike note of keyseat that produces especially when keystroke is got rid of in hope.
Claims (6)
1. the shift unit of a fingerboard is applied to it is characterized in that in the piano of the structure of direction slip to the left and right under the state of keyboard and the assembling of hammered string instrument one,
The shift unit of this fingerboard has: keyseat; The slip wooden frame is positioned on this keyseat, and by the preceding crossbearer of direction slip to the left and right under the state of keyboard and the assembling of hammered string instrument one, middle crossbearer, back crossbearer and vertical being configured to; Shift mechanism is used to make this slip wooden frame to slide; And the height and position governor motion, carry out the position adjustments of described slip wooden frame with respect to the short transverse of keyseat,
The height and position governor motion has: contact heel pin, the altitude datum of setting slip wooden frame; Displacement guider screw, guided slidable wooden frame be moving of direction to the left and right, and set the height and position of slip wooden frame with respect to keyseat; And base screw, keeping passing through the height and position of the slip wooden frame of this displacement guider screw setting with respect to keyseat, the slip wooden frame constitutes with respect to keyseat and slides with contactless state.
2. the shift unit of fingerboard according to claim 1 is characterized in that,
Described displacement guider screw be arranged on described contact heel pin near.
3. the shift unit of fingerboard according to claim 1 and 2 is characterized in that,
Be formed with long guiding hole on described slip wooden frame, this long guiding hole is taken in described displacement guider screw, and comes guided slidable wooden frame moving of direction to the left and right by engaging with the displacement guider screw.
4. the shift unit of fingerboard according to claim 3 is characterized in that,
Be provided with guide roller with the state that can dally on described displacement guider screw, described long guiding hole and displacement guider screw are via this guide roller sliding contact.
5. the shift unit of fingerboard according to claim 1 and 2 is characterized in that,
The position, the left and right sides and the centre position of crossbearer and back crossbearer before described contact heel pin and displacement guider screw are arranged on, the pars intermedia at the position that is provided with described contact heel pin and displacement guider screw of crossbearer and back crossbearer and a plurality of positions of middle crossbearer before described base screw is arranged on.
6. the control method of the shift unit of a fingerboard, height and position governor motion in the shift unit of each the described fingerboard in the use claim 1～5 carries out, it is characterized in that the control method of the shift unit of this fingerboard has following operation:
Contact heel pin installation procedure, from the below with the contact heel pin be pressed into and be installed to one be assembled with preceding crossbearer, in the slip wooden frame of crossbearer, back crossbearer and vertical frame; The temporary fixed operation of base screw is inserted into the described slip wooden frame while from the top base screw screwed in, and the lower surface that makes the lower surface of base screw and slip wooden frame is for one side; The fastening operation of displacement guider screw on keyseat, is screwed into the displacement guider screw with described slip wooden frame mounting, sets the height and position of slip wooden frame with respect to keyseat; And base screw screw in to regulate operation, and keyboard and hammered string instrument are assembled on the slip wooden frame, further screws in base screw, makes the lower surface of base screw and the upper surface butt of keyseat, the height and position of the wooden frame that keeps sliding.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007101585A JP4901559B2 (en) | 2007-04-09 | 2007-04-09 | Piano keyboard shift device and method for adjusting piano keyboard shift device |
| JP101585/2007 | 2007-04-09 | ||
| PCT/JP2008/056305 WO2008126713A1 (en) | 2007-04-09 | 2008-03-31 | Shift device for piano keyboard and method of adjusting shift device for piano keyboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101681615A CN101681615A (en) | 2010-03-24 |
| CN101681615B true CN101681615B (en) | 2011-11-16 |
Family
ID=39863818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008800113604A Active CN101681615B (en) | 2007-04-09 | 2008-03-31 | Shift device for piano keyboard and method of adjusting shift device for piano keyboard |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4901559B2 (en) |
| CN (1) | CN101681615B (en) |
| WO (1) | WO2008126713A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102831883B (en) * | 2012-09-21 | 2014-11-05 | 浙江友谊电子有限公司 | Digital piano keyboard |
| CN109036337B (en) * | 2018-09-17 | 2023-01-31 | 郑州幼儿师范高等专科学校 | Reinforcing device for piano key pressing stopper |
| CN110288961B (en) * | 2019-06-03 | 2021-05-07 | 湖南城市学院 | Piano keyboard adjusting device and adjusting method using same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3730099A1 (en) * | 1986-09-09 | 1988-03-24 | Tanaka Int | Arrangement of the tipper end piece for an upright piano |
| CN2358518Y (en) * | 1999-01-11 | 2000-01-12 | 任连生 | Free tone-changing musical instrument |
| CN1691132A (en) * | 2004-04-28 | 2005-11-02 | 东洋钢琴制造株式会社 | Piano shifting device |
| JP3763096B2 (en) * | 2002-10-29 | 2006-04-05 | 東洋ピアノ製造株式会社 | Piano shift equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS613032Y2 (en) * | 1976-02-04 | 1986-01-30 | ||
| JPS5760059Y2 (en) * | 1976-07-13 | 1982-12-21 | ||
| JPS5312725U (en) * | 1976-07-15 | 1978-02-02 | ||
| JPS5312725A (en) * | 1976-07-22 | 1978-02-04 | Aikoh Co | Additive for protecting top surface of molten steel |
| JP3354011B2 (en) * | 1994-08-04 | 2002-12-09 | 株式会社河合楽器製作所 | Key height adjustment device |
| JP2006285102A (en) * | 2005-04-04 | 2006-10-19 | Kawai Musical Instr Mfg Co Ltd | Keyboard support device for keyboard musical instrument |
-
2007
- 2007-04-09 JP JP2007101585A patent/JP4901559B2/en not_active Expired - Fee Related
-
2008
- 2008-03-31 WO PCT/JP2008/056305 patent/WO2008126713A1/en active Application Filing
- 2008-03-31 CN CN2008800113604A patent/CN101681615B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3730099A1 (en) * | 1986-09-09 | 1988-03-24 | Tanaka Int | Arrangement of the tipper end piece for an upright piano |
| CN2358518Y (en) * | 1999-01-11 | 2000-01-12 | 任连生 | Free tone-changing musical instrument |
| JP3763096B2 (en) * | 2002-10-29 | 2006-04-05 | 東洋ピアノ製造株式会社 | Piano shift equipment |
| CN1691132A (en) * | 2004-04-28 | 2005-11-02 | 东洋钢琴制造株式会社 | Piano shifting device |
Non-Patent Citations (2)
| Title |
|---|
| JP特开平10-187142A 1998.07.14 |
| JP特许第3763096号B2 2006.01.27 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101681615A (en) | 2010-03-24 |
| WO2008126713A1 (en) | 2008-10-23 |
| JP4901559B2 (en) | 2012-03-21 |
| JP2008257107A (en) | 2008-10-23 |
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