Overview:
The invention relates to a chord pillow structure of grand piano, which comprises a cast iron plate, wherein a chord pillow groove is arranged on the cast iron plate, and a strip-shaped chord pillow matched with the chord pillow groove is embedded in the chord pillow groove, and the length of the strip-shaped chord pillow is the same as that of the chord pillow groove. By adopting this structure, it is not necessary to finish the cast iron plate. At the same time, because the strip-shaped chord pillow can be made of high-hardness synthetic steel, such as stainless steel, its appearance is smooth and its roundness is uniform. The strip-shaped chord pillow is closely combined with the groove of the chord pillow under the pressure of strings, so that the top height of the strip-shaped chord pillow is uniform and straight, which greatly reduces the processing difficulty of casting the chord pillow, and the chord pillow is not easy to rust and durable, thus prolonging the service life of the cast iron plate.
2. A pedal selective sustain control device in upright piano (utility model patent, patent number: ZL 0 1 2 626 16.3).
Overview:
China took the lead in adopting this patented technology, fully realized the application of grand piano's middle pedal selection and sustain function in upright piano, broke through the limitations of upright piano's manufacturing and performance, and greatly enriched upright piano's musical expression. Many piano players fully affirmed this patent.
Three, multi-function piano (utility model patent, patent number: ZL 2007 2 0008490.5)
Overview:
This is a novel piano with an automatic player. It also uses the piano's own * * * speaker to match the sound speaker and player. It can play and sing by itself, and can also perform karaoke activities with the music of the automatic player.
4. An anti-deformation device for piano middle plate (utility model patent, patent number: ZL 20 10 2 026 1289). x)
Overview:
The invention relates to an anti-deformation device for a piano middle plate, which comprises a left pull rod, a right pull rod and a spiral pipe with a hexagon nut. According to the invention, the middle plate is fastened by the left pull rod, the right pull rod and the spiral pipe with the hexagon nut, so that the middle plate is prevented from bending and warping; even if the middle plate is deformed after long-term use, the middle plate can be kept flat by adjusting the spiral pipe with the hexagon nut, so that the stability of the piano is ensured and the quality of the piano is improved.
Verb (abbreviation of verb) is a upright piano percussion mechanism (patent for utility model, patent number: ZL 20 10 2 0254982.4) that enhances the sense of staccato.
Overview:
The invention relates to a upright piano string striking mechanism for enhancing staccato feeling, which comprises a linkage rod, a main gear, a toggle cam, an ejector rod, a hook spring and a piano hammer. The device can effectively enhance the sense of staccato in piano performance, and can be flexibly adjusted, thus improving upright piano's sense of performance.
6. A piano caster with adjustable height (utility model patent, patent number: ZL 20 10 2 0254027.0)
Overview:
A piano caster with adjustable height comprises an spindle rod, a movable caster and a movable caster fixing iron frame, wherein the bottom end of the spindle rod is fixed on the movable caster fixing iron frame, and the movable caster is fixed in the movable caster fixing iron frame. By using the thread fit between the lifting shaft sleeve and the caster fixed seat, the lifting shaft sleeve is rotated to raise the height of the piano leg until it is adjusted to a suitable height. In this way, even if the ground is not very flat, the piano can be placed on a plane by adjusting the height of the casters without moving the piano.
Seven, a upright piano polyphonic acceleration mechanism (utility model patent, patent number: ZL 20 10 2 0254499.6).
Overview:
The invention relates to a upright piano repetitive acceleration mechanism, which comprises a connecting rod, a main gear, an ejector pin and a rotary arm cam; According to the invention, the adjustable repetitive torsion spring is arranged between the ejector pin and the brake handle of the tumbler cam, so that the situation that the ejector pin cannot return normally or cannot return due to fast playing is effectively avoided, and the playing speed and effect of upright piano are improved.
Eight, a upright piano treble sound double overtone device (utility model patent, patent number: ZL 2005 2 0076 153.0).
Overview:
The device changes the original one-section chord presser in the high-pitched area into three-section chord presser, which enlarges the invalid chord length area. With this structure, when the strings are effectively vibrated and pronounced, the invalid string length will produce frequency doubling harmonics coordinated with the effective vibration frequency, thus forming a sound double overtone effect and enriching the timbre of the high-pitched area.
Nine, a upright piano keyboard electrostatic resistance adjustment device (utility model patent, patent number: ZL 2004 2 0 108746.6)
Overview:
The device can effectively adjust the electrostatic resistance of the keyboard and adapt to the special requirements of different groups of people.
X. An automatic opening device for upright piano piano score board (utility model patent, patent number: ZL 20 10 2 0253974.8).
Overview:
The invention relates to an automatic opening device of a upright piano piano score plate, which comprises a piano score plate, an upper cover plate, a front baffle plate and a piano score plate cover plate, wherein the piano score plate cover plate is movably connected to a piano frame through a hinge. This device can automatically open the music stand and put the music stand outside the rocker cover of the piano disc, so that there is enough space to put music, even if the piano disc is damaged, it will not affect the opening and closing of the rocker cover of the piano disc.
XI。 A structure of upright piano manual lifting bucket (utility model patent, patent number: ZL01262617.1).
Overview:
The action is flexible and reliable, and the operation is simple, which can effectively prevent children and beginners from stepping on the pedal by mistake, resulting in weak voice and affecting the performance effect.
Twelve. A upright piano string presser (utility model patent, patent number: ZL 2005 2 0076 152.6).
Overview:
The traditional semi-circular cross-section string press is changed into a V-shaped cross-section string press, which is applied to the treble double overtone device, which can not only meet the effective vibration of the strings in the double overtone area, but also ensure the contact point between the strings and the string press.
Thirteen. A upright piano pillow (utility model patent, patent number: ZL200520076151.1).
Overview:
A groove embedded with a stainless steel strip with a diameter of 2.5 mm is accurately cast on the piano tenor pillow, which ensures the accurate size of the contact point between the strings and the pillow and the purity of sound quality. 1. Piano (H- 122TM) (design patent, patent number: ZL 2004 3 00 15762.6)
Two. Piano (H- 123H-E type) (design patent, patent number: ZL 2004 3 00 15763.0)
Three. Piano (H- 123H-G) (design patent, patent number: ZL200430015761.1)
Four. Piano (H- 133T model) (design patent, patent number: ZL 2004 3 00 15760.7)
Overview:
H- 133T type; Piano design is classical and dignified, named "Navigator", with herringbone piano back frame, which is the representative of Hamani fine piano.
V piano (HG- 123 model) (design patent, patent number: ZL 2005 3 0 130498.5)
Overview:
HG- 123 type; Brand-new design, the upper door panel has a perspective crescent window, unique shape, inlaid piano player, BMW shape, arc cover, streamlined and dynamic.
Piano (HG- 133T model) (design patent, patent number: ZL 2004 3 00 15759.4)
Overview:
HG- 133T type; The piano design is simple and generous, and the stress structure of the herringbone piano back frame is reasonable, which is the first in China.
Seven. Piano (HG- 133W-R type) (design patent, patent number: ZL 2007 3 0 140750). x)
Overview:
HG- 133W-R type; The flying top cover plate and the big cover are linked, and the three-dimensional BMW sedan inlaid violinist is the first in China.
Eight, grand piano cast iron plate (design patent, patent number: ZL 2009 3 0 173634.7)
Nine, piano cast iron plate (design patent, patent number: ZL 2005 3 0 130497.0)
Overview:
Embossed digitally coded cast iron plate; This is a kind of piano cast iron plate with relief pattern cast by vacuum casting technology and "V" method. The application of No.1 casting coding technology for each piece can not only ensure the quality tracking in the production process, but also be used as an anti-counterfeiting mark.