CN201975057U - Struck string machine for grand piano - Google Patents
Struck string machine for grand piano Download PDFInfo
- Publication number
- CN201975057U CN201975057U CN2011200741265U CN201120074126U CN201975057U CN 201975057 U CN201975057 U CN 201975057U CN 2011200741265 U CN2011200741265 U CN 2011200741265U CN 201120074126 U CN201120074126 U CN 201120074126U CN 201975057 U CN201975057 U CN 201975057U
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Abstract
Disclosed is a struck string machine for a grand piano. One end of a plastic link is hinged with a plastic linkage gear shaft bracket; the other end of the plastic link is hinged with a plastic ejector rod; the middle of the plastic link is provided with a projecting shaft bracket; a plastic vibration playing rod is hinged with the projecting shaft bracket; one end of the plastic vibration playing rod contacts with the top end of the plastic ejector rod and further matches with a drum wheel on a hammer head mechanism; and the other end of the plastic vibration playing rod is provided with a plastic vibration playing rod adjusting button. By the aid of the structure, partial parts are made of plastic synthetic materials, so that manufacturing process is simplified. Parts can be formed at one step by means of injection molding, the produced parts are fine in lubricity, small in resistance and high in precision, strength and durability of the struck string machine are improved greatly, and adjustment is less and time is saved when the struck string machine is assembled, so that production efficiency is high. As the plastic parts are selected properly, the struck string machine is fine in controllability and excellent in weather resistance when in playing.
Description
Technical field
The utility model relates to a kind of piano parts, particularly a kind of grand piano hammered string instrument.
Background technology
Hammered string instrument is that every piano produces the core performance mechanism of hitting the string motion.The player makes piano send different melody by playing the keyboard that links to each other with hammered string instrument.A piano that has good quality must possess the high hammered string instrument of precision.The hammered string instrument of a high-quality also requires its part precision height, weatherability strong except that designing requirement.Make piano stay in grade under long-time the use, durable in use.
The wooden parts of a large amount of uses of the hammered string instrument of produced in conventional processes are produced these parts, not only material is required height, and manufacturing procedure are complicated.Because the natural wood materials density unevenness is even, be subjected to the temperature of environment, the influence that humidity changes is easy to generate distortion, give and produce hammered string instrument and increased difficulty, and the precision of parts is also wayward.The also yielding characteristic of timber just can cause piano to play performance to descend when weather changes in the future, even can't normally play.But other materials of indiscriminate employing may have influence on the tone color of piano again, perhaps change the transmission inertia of drive disk assembly, the handling that influence is played.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of grand piano hammered string instrument, can improve the stability and the weatherability of piano striking machine.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of grand piano hammered string instrument, mould system gangbar one end and mould system clutch pedestal hinged, the other end with mould the system push rod hinged, mould system gangbar stage casing and be provided with a protruding pedestal, mould that bar is played in the system shake and this projection pedestal is hinged;
Mould system shake and play bar one end and contact with moulding system push rod top, mould the system shake and play this end of bar and also cooperate with drum in the hammerhead mechanism, the other end is provided with to mould to make to shake plays the bar adjusting knob.
In the described hammerhead mechanism, hammerhead is hinged on to be moulded on the system hammerhead pedestal, moulds system hammerhead pedestal and is installed on the total shelves of hammerhead, moulds the total shelves of a system hammerhead pedestal and has and mould the system adjusting knob, and the hammerhead handle is provided with drum.
The described system push rod of moulding becomes " L " shape, is provided with a lug boss on the minor face of " L " shape, and this lug boss is made adjusting knob and cooperated with moulding.
Described moulding on the system hammerhead pedestal also is provided with the adjusting screw of going down after a rise.
The described system push rod of moulding is provided with and moulds system push rod adjusting knob.
Described hammerhead mechanism below also is provided with moulds the system bolster.
The keyboard rear end also is provided with moulds the system sound-making bar, moulds the system sound-making bar and to mould system system sound screw mandrel pedestal hinged, moulds the system sound-making bar and is provided with and moulds system tenuto shifting block.
The described system system sound screw mandrel pedestal of moulding is installed in damper and lifts on the shelves.
The described system clutch pedestal of moulding is installed on the clutch shelves.
The described system gangbar below of moulding is provided with a boss.
A kind of grand piano hammered string instrument that the utility model provides by adopting above-mentioned structure, and adopts the manufacturing of plastics synthetic material with part, thus simplified manufacturing technique, with one step of method of injection moulding be the plastic part of making; The part lubricity of producing is good, and resistance is little; Be equipped with supporting material (as: carbon fiber, glass fibre and carbon black etc. at synthetic material ABS, nylon, POM or their potpourri, ratio is 5%-40%) and colorant, produce the hammered string instrument part by the one-time formed method of fusion injection moulding, increased substantially the intensity and the permanance of hammered string instrument; The element precision height of producing during the assembling hammered string instrument, is adjusted less, is saved time, thus the production efficiency height; Because it is suitable to mould the selection of workpieces, handling is good when playing, the weather resistance excellence.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
Embodiment
In Fig. 1, a kind of grand piano hammered string instrument is moulded system gangbar 7 one ends and to mould system clutch pedestal 5 hinged, and the other end is moulded system gangbar 7 stage casings and is provided with a protruding pedestal with to mould system push rod 10 hinged, and moulding the system shake, to play bar 8 hinged with this projection pedestal; Mould system clutch pedestal 5 and be installed on the support 16 by clutch shelves 14, described system gangbar 7 belows of moulding are provided with a boss.Key 17 is provided with bail 15, and bail 15 contacts with the boss of moulding system gangbar 7 belows.
Mould system shake and play bar 8 one ends and contact with moulding system push rod 10 tops, mould the system shake and play bar 8 this ends and also cooperates with drum 20 in the hammerhead mechanism, the other end is provided with the system of moulding and shakes and plays bar adjusting knob 6, moulds to make to shake and plays bar 8 and mould to make to be provided with between the gangbar 7 to shake and play bar spring 19.
In the described hammerhead mechanism, hammerhead 18 is hinged on to be moulded on the system hammerhead pedestal 12, moulds system hammerhead pedestal 12 and is installed on the support 16 by the total shelves 22 of hammerhead, and the total shelves 22 of hammerhead have moulds system adjusting knob 11, and hammerhead handle 23 is provided with drum 20.
Describedly mould system push rod 10 one-tenths " L " shapes, be provided with a lug boss on the minor face of " L " shape, this lug boss is made adjusting knob 11 and is cooperated with moulding.
Described moulding on the system hammerhead pedestal 12 also is provided with the adjusting screw 21 of going down after a rise.
The described system push rod 10 of moulding is provided with and moulds system push rod adjusting knob 9.
Described hammerhead mechanism below also is provided with moulds system bolster 3.
The keyboard rear end also is provided with moulds system sound-making bar 4, moulds system sound-making bar 4 and to mould system system sound screw mandrel pedestal 1 hinged, moulds system system sound screw mandrel pedestal 1 and is provided with and moulds system tenuto shifting block 2.
The described system system sound screw mandrel pedestal 1 of moulding is installed in damper and lifts on the shelves 13.
When flick key 17 with have gentle hands, along with key 17 sinks, when lift key 17 rear ends, moulds system gangbar 7 and just move up, along with moulding raising gradually of system gangbar 7, hammerhead 18 is just moulded system shake and is played bar 8 and mould system push rod 10 and lift, and string upward moves.When hammerhead 18 is moved upwards up to apart from 5 millimeters on string, mould the system shake and play the front end of bar 8 and the adjusting screw 21 of going down after a rise, can not move up again, at this moment, the system of the moulding push rod 10 of moulding dress on the system gangbar 7 also contacts with moulding system adjusting knob 11 than the lug boss on the minor face, stops thrust upwards.Along with the continuation of key 17 is sunk, continue to rise in key 17 rear ends, hammerhead 18 has formed " disconnected connection " because lose thrust, and hammerhead 18 hits string by self inertia, changed direction owing to mould system push rod 10, hammerhead 18 begins to fall, but the rear end of key is equipped with and moulds system bolster 3, waits hammerhead 18 just there and falls, the afterbody of hammerhead 18 contacts with moulding system bolster 3, stops on the way.When finger lifts key 17 recoveries, mould and make gangbar 7, hammerhead 18, mould system push rod 10 and all recovered stationary state again rapidly.
The root of hammerhead handle is equipped with a drum 20, and its is moulded system shake and plays bar 8 and holding in the palm, and moulds the system shake and plays in the slot of bar 8, under cover moulds the upper end of system push rod 10.When button 17 gently.When hammerhead 18 fell, drum 20 was played on the bar 8 with regard to being pressed in lightly to mould to make to shake, and is shaken the elastic force of playing bar 8 by the system of moulding and holds.This elastic force makes hammerhead not get back to again at once and moulds on the system bolster 3.But, when hammerhead returns, one impulse force is just arranged also as the chain shot of exerting oneself.So drum 20 will be played bar 8 and depresses 2-3 millimeters moulding system shake, produces a kind of elasticity of answering in advance, just in this moment, hammerhead is just moulded to be made bolster 3 and embraces.When key lifts a bit slightly, mould system bolster 3 and throw off with the hammerhead afterbody.At this moment, hammerhead will lift 3 millimeters to pop-up because of moulding the elastic force of answering in advance that system shake plays bar 8.Along with key continues to lift, hammerhead just slowly falls then.Lift 3 millimeters this phenomenon owing to moulding the elastic force of answering in advance that system shake plays bar 8, mechanically be called " stroke floats ".Mould the effect that bar 8 is played in the system shake, its core also just here.This " stroke floats " also arranged just, moulded the bottom that system push rod 10 could return drum 20 with the fastest speed, after hammerhead hits string, needn't get back to and mould system bolster 3 places, given to play fast and bring great convenience.If mould the holder power that bar 8 is played in system shake, mould system push rod 10 and just can not turn back to drum 20 bottoms rapidly and go to finish the thrust of hitting string the second time, stuck phenomenon will take place.Secondly, make mould that system push rod 10 returns rapidly, except that owing to mould the system shake and play the holder power of bar 8, mould system push rod adjusting knob 9 and shake the pressure of playing bar spring 19 and want suitably.Its pressure will just in time equal to mould the holder power that bar 8 is played in the system shake, and the size of holder power just in time equals the falling weight of hammerhead.Simultaneously, moulding system bolster 3 also is 1/2 place that hammerhead falls to being defined in whole strokes crucial, and it restores, finishes and hit string the second time, done temporal preparation for moulding system push rod 10.When key just lifts, the rear end of key sinks, the hammerhead afterbody with mould system bolster 3 and just disengage.Just in a flash, mould system shake and play bar 8 and hold drum on the hammerhead handle again, mould system push rod 10 and play under the pressure of bar spring 19 in shake again, get back to below the drum rapidly at this.Consistent in order to make top of moulding system push rod 10 and the system of moulding shake the plane play bar 8, play on the bar 8 middle section and be equipped with and mould the system shake and play bar adjusting knob 6 moulding system shake, it with mould system gangbar 7 and be connected, rotation is moulded system shake and is played bar adjusting knob 6 and can adjust and mould the system shake and play the height of bar 8 and do not influence and mould the system shake to play bar 8 free up and down.
The damper of grand piano is an autonomous system, and it is to utilize to mould system sound-making bar 4 weight and falls naturally and end sound, will mould system sound-making bar 4 ends when lift key rear end and lift, and makes and makes sound disengaging string, string free vibration.Mould system sound-making bar 4 time of lifting also just in time at 1/2 place of key stroke.
Mould system sound-making bar 4 in this example, mould system tenuto shifting block 2, mould system bolster 3, mould system system sound screw mandrel pedestal 1, mould system clutch pedestal 5, mould the system shake and play bar adjusting knob 6, mould system gangbar 7, mould the system shake and play bar 8, mould system push rod adjusting knob 9, mould system push rod 10, mould system adjusting knob 11 and mould system hammerhead pedestal 12 part for adopting plastics to make.
The described workpieces of respectively moulding (for example: carbon fiber, glass fibre and carbon black etc. is equipped with supporting material for adopting synthetic material ABS, nylon, POM or their potpourri, ratio is 5%-40%) and colorant, produce by the one-time formed method of fusion injection moulding.
Claims (10)
1. grand piano hammered string instrument, it is characterized in that: mould system gangbar (7) one ends and mould system clutch pedestal (5) hinged, the other end is moulded system gangbar (7) stage casing and is provided with a protruding pedestal with to mould system push rod (10) hinged, and moulding the system shake, to play bar (8) hinged with this projection pedestal;
Mould system shake and play bar (8) one ends and contact with moulding system push rod (10) top, mould the system shake and play this end of bar (8) and also cooperate with drum (20) in the hammerhead mechanism, the other end is provided with to mould to make to shake plays bar adjusting knob (6).
2. a kind of grand piano hammered string instrument according to claim 1, it is characterized in that: in the described hammerhead mechanism, hammerhead (18) is hinged on to be moulded on the system hammerhead pedestal (12), moulding system hammerhead pedestal (12) is installed on the support (16) by the total shelves of hammerhead (22), the total shelves of hammerhead (22) have moulds system adjusting knob (11), and hammerhead handle (23) is provided with drum (20).
3. a kind of grand piano hammered string instrument according to claim 2 is characterized in that: the described system push rod (10) of moulding becomes " L " shape, is provided with a lug boss on the minor face of " L " shape, and this lug boss is made adjusting knob (11) and cooperated with moulding.
4. a kind of grand piano hammered string instrument according to claim 2 is characterized in that: described moulding on the system hammerhead pedestal (12) also is provided with the adjusting screw of going down after a rise (21).
5. a kind of grand piano hammered string instrument according to claim 1 is characterized in that: described mould the system push rod (10) be provided with mould the system push rod adjusting knob (9).
6. a kind of grand piano hammered string instrument according to claim 1 is characterized in that: described hammerhead mechanism below also is provided with moulds system bolster (3).
7. a kind of grand piano hammered string instrument according to claim 1, it is characterized in that: hammerhead mechanism the place ahead also is provided with moulds system sound-making bar (4), mould system sound-making bar (4) and to mould system system sound screw mandrel pedestal (1) hinged, mould system system sound screw mandrel pedestal (1) and be provided with and mould the system tenuto and pull out head (2).
8. a kind of grand piano hammered string instrument according to claim 7 is characterized in that: described system system sound screw mandrel pedestal (1) below of moulding also is provided with damper and lifts shelves (13).
9. a kind of grand piano hammered string instrument according to claim 1 is characterized in that: the described system clutch pedestal (5) of moulding is installed on the clutch shelves (14).
10. a kind of grand piano hammered string instrument according to claim 1 is characterized in that: described system gangbar (7) below of moulding is provided with a boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200741265U CN201975057U (en) | 2011-03-21 | 2011-03-21 | Struck string machine for grand piano |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200741265U CN201975057U (en) | 2011-03-21 | 2011-03-21 | Struck string machine for grand piano |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201975057U true CN201975057U (en) | 2011-09-14 |
Family
ID=44580154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200741265U Expired - Lifetime CN201975057U (en) | 2011-03-21 | 2011-03-21 | Struck string machine for grand piano |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201975057U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070275A (en) * | 2015-07-27 | 2015-11-18 | 成都伯格特钢琴自动演奏系统有限公司 | Structure for providing controlled rotating resistance in piano actions |
| CN107408375A (en) * | 2015-03-25 | 2017-11-28 | 雅马哈株式会社 | Support component and keyboard equipment |
| CN110070843A (en) * | 2019-05-07 | 2019-07-30 | 南阳理工学院 | It is a kind of with partly hitting the struck string machine for grand piano of key design performance simultaneously |
| CN107430843B (en) * | 2015-03-25 | 2020-11-10 | 雅马哈株式会社 | Support assembly and keyboard device |
-
2011
- 2011-03-21 CN CN2011200741265U patent/CN201975057U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107408375A (en) * | 2015-03-25 | 2017-11-28 | 雅马哈株式会社 | Support component and keyboard equipment |
| CN107408375B (en) * | 2015-03-25 | 2020-09-22 | 雅马哈株式会社 | Support assembly and keyboard device |
| CN107430843B (en) * | 2015-03-25 | 2020-11-10 | 雅马哈株式会社 | Support assembly and keyboard device |
| CN105070275A (en) * | 2015-07-27 | 2015-11-18 | 成都伯格特钢琴自动演奏系统有限公司 | Structure for providing controlled rotating resistance in piano actions |
| CN105070275B (en) * | 2015-07-27 | 2018-12-25 | 成都伯格特钢琴自动演奏系统有限公司 | For providing the structure by control rotary resistance in piano striking machine |
| CN110070843A (en) * | 2019-05-07 | 2019-07-30 | 南阳理工学院 | It is a kind of with partly hitting the struck string machine for grand piano of key design performance simultaneously |
| CN110070843B (en) * | 2019-05-07 | 2022-11-08 | 南阳理工学院 | Grand piano action with half a stroke key design performance simultaneously |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |