CN105300251A - Piano key touch measuring block and piano key touch measuring method - Google Patents
Piano key touch measuring block and piano key touch measuring method Download PDFInfo
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- CN105300251A CN105300251A CN201510883583.1A CN201510883583A CN105300251A CN 105300251 A CN105300251 A CN 105300251A CN 201510883583 A CN201510883583 A CN 201510883583A CN 105300251 A CN105300251 A CN 105300251A
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Abstract
The invention relates to a piano key touch measuring block. The piano key touch measuring block comprises a main body and a fixed counterweight for the main body, wherein the lower end of the main body includes a left plane, a middle lug and a right plane; the left plane and the right plane are arranged on the same horizontal plane; the middle lug protruding downward is arranged between the left plane and the right plane; the lower end surface of the middle lug is an oblique surface which inclines from the front downward direction to the back upward direction; and when the oblique surface of the middle lug presses the front end of the next key and attaches to the key, the left plane is arranged right above the key at the left side of the pressed key and the right plane is arranged right above the key at the right side of the pressed key. The invention also relates to a piano key touch measuring method. The piano key touch measuring block has the advantages of being simple in structure and being convenient to operate, and belongs to the technical field of piano production measurement.
Description
Technical field
The present invention relates to piano production measuring technique, specifically, relate to piano key sense of touch survey mass and the sub-sense of touch measuring method of piano key.
Background technology
Piano key attached bag draws together black key and Bai Jian, and the key sense of touch measurement in the application refers to Bai Jian.
The installation of piano key is an important step during piano is produced, and installation requirement is: the degree of depth of each key all wants consistent.
In order to make all key degree of depth consistent, prior art is: press debugging one by one by skilled tune stringed-instrument player staff.
But prior art exists following shortcoming: 1. need professional, debugging difficulty is large, and common people are difficult to be competent at.2. subjectivity is strong.3. staff depressed key, presses down dynamics difference at every turn, causes error.4. pair each key may need to play repeatedly perception, and just can compare, efficiency is low.
Summary of the invention
For the technical matters existed in prior art, the object of the invention is: a kind of piano key sense of touch survey mass and the sub-sense of touch measuring method of piano key are provided, only need train slightly operating personnel, operating personnel get final product simple and quick a set of piano key that judges, and whether the depth is consistent, finds out nonconforming key fast.
In order to achieve the above object, the present invention adopts following technical scheme:
The sub-sense of touch survey mass of piano key, comprises main body and the counterweight fixing with main body; The lower end of main body comprises left plane, middle projection, right plane, and wherein left plane and right plane are positioned in same level, and the middle projection protruded downwards is between left plane and right plane; The lower surface of middle projection is the inclined-plane of the inclined upward backward from front lower place; When the inclined-plane of middle projection is pressed the front end of next key and fitted with this key, left plane is positioned at directly over sub-left side keys of depressed key, and right plane is positioned at directly over sub-right hand side keys of depressed key.
Preferred as one, be provided with installation cavity in main body, counterweight is positioned at installation cavity.
Preferred as one, main body comprises convex block, rubber cushion, film; The longitudinal cross-section of convex block is inverted " convex " font, and installation cavity is opened in the front end of convex block, and the film identical with the front end size of convex block is fixed on the front end of convex block; Three pieces of elastic mountings are on the surface of convex block, and three pieces of rubber cushions form the inclined-plane of left plane, right plane, middle projection respectively.
Preferred as one, the material of convex block is plastics; The material of rubber cushion is magnetic glue; The material of film is plastics.
Preferred as one, installation cavity be axial direction along fore-and-aft direction extend cylindrical; Counterweight is columniform lead button; The quantity of installation cavity is multiple, and the quantity of counterweight is multiple, places multiple lead button in an installation cavity.
Preferred as one, rubber cushion and film all bond with convex block.
Preferred as one, the plane of symmetry centered by the center ofthe position of middle projection, counterweight is symmetrically arranged centered by Central Symmetry face.
Preferred as one, the general assembly (TW) of counterweight is more than or equal to 220 grams.
The sub-sense of touch measuring method of piano key, adopts the sub-sense of touch survey mass of piano key, is placed on the front end of key, utilizes the gravity of piano key sense of touch survey mass that key is pressed onto extreme lower position by sub-for piano key sense of touch survey mass; Turn left from left to right or from the right side and measure each key successively; When measuring from left to right, with left plane for benchmark, the gap of the upper end of more left plane and sub-left side keys of each depressed key; When measuring when turning left from the right side, with right plane for benchmark, the gap of the upper end of righter plane and sub-right hand side keys of each depressed key; Judge that key was dark, moderate or excessively shallow according to gap.
Preferred as one, when the inclined-plane of middle projection and key fit make key sink down into extreme lower position time, it is then that the sinking key degree of depth is moderate that left plane or right plane and corresponding keys fits, the front end of left plane or right plane and corresponding keys leave space then for the sinking key degree of depth is excessively shallow, and the front end of left plane or right plane contacts rear end and leaves space then for the sinking key degree of depth is excessively dark with corresponding keys; Recorded is that the adjustment of the key degree of depth is prepared deeply with excessively shallow key position.
Principle of the present invention is:
When piano has designed, the upper surface gradient of the level of key that do not sink, the submergence depth of key, sinking key, the size of key have all been fixed, and according to these values, can produce the sub-depth measuring block of piano key of corresponding specific piano model.
Because piano is in manufacturing process, the fabrication and installation of parts all can have error, and after final key has assembled, submergence depth possibility disunity, what have is excessively dark, and what have is excessively shallow.Therefore need to find out dark and excessively shallow key, the paper circle cushioned bottom can increasing excessively dark key, the paper circle cushioned bottom can reducing excessively shallow key.
By measuring process by survey instrument standardization, measure each key period of the day from 11 p.m. to 1 a.m, sub-for piano key sense of touch survey mass is remained in a plane and moves, namely keep the sub-front end of sense of touch survey mass of piano key substantially to align with the front end of key.By the degree of depth of condition adjudgement sinking key in the gap of left plane or right plane and corresponding keys (on the left of sinking key or key on right side) be suitable, cross dark or excessively shallow.
Generally speaking, tool of the present invention has the following advantages:
1. adopt the present invention as survey instrument, general operation workman can be competent at through simple training.
2. subjectivity impact reduces greatly.
3., by deadweight depressed key of the sub-sense of touch survey mass of piano key, each key uniform force, ensures the consistance of the measurement result of each key.
4. a set of key from left to right or turn left from the right side detect once, greatly improve detection efficiency.
5. adopt rubber cushion, both can be anti-skidding, also can protect key sub-surface, prevent from scratching.
6. the sub-depth survey block structure of piano key is simple, easy to make.
7. easy to operate, quick.
Accompanying drawing explanation
Fig. 1 is the front view of the sub-sense of touch survey mass of piano key.
Fig. 2 is the cut-open view of the right view of Fig. 1.
Fig. 3 is the upward view of Fig. 1.
Fig. 4 is the schematic diagram be placed on by sub-for piano key depth measuring block on key.
Fig. 5 is the front view of key.
Fig. 6 is the schematic diagram of key degree of depth proper states.
Fig. 7 is the schematic diagram that the key degree of depth crosses shallow state.
Fig. 8 is the schematic diagram that the key degree of depth crosses dark state.
Wherein, 1 is convex block, and 2 is rubber cushion, and 3 is film, and 4 is installation cavity, and 5 is counterweight, and 6 is left plane, and 7 is middle projection, and 8 is right plane, and 9 is inclined-plane, and 10 is key, and 11 is paper circle.
Embodiment
Come that the present invention will be further described in detail below.
The sub-sense of touch survey mass of piano key comprises: main body and counterweight.
Main body comprises one piece of convex block, three rubber cushions, a slice films.The longitudinal section of convex block is inverted " convex " font, and the front end of convex block has four columniform installation cavitys, and columniform axial direction is arranged along fore-and-aft direction, and installation cavity is symmetrically arranged with Central Symmetry face.Film is bonded at the front end of convex block by bonding agent, is closed by the installation cavity that placed counterweight, the size of film and the front end face of convex block in the same size.Rubber cushion is bonded at the lower end of convex block by bonding agent, three rubber cushions form left plane, the inclined-plane of middle projection, right plane respectively, wherein left plane and right plane are positioned in same level, middle projection is between left plane and right plane, the inclined-plane of middle projection is inclined upward backward from front lower place, and gradient is consistent with the design gradient of sinking key.The width of middle projection is slightly less than the width of key, and the width of left plane and right plane is less than the width of key.The material of convex block is engineering plastics; The material of rubber cushion is magnetic glue; The material of film is plastics.
Counterweight is columniform lead button, and quantity is 12, every three lead button non-loosenings put into an installation cavity.The general assembly (TW) of all lead buttons equals 220 grams, is symmetrically arranged with Central Symmetry face.
When the present embodiment is measured, be that benchmark is measured from left to right with the left side, sub-for piano key sense of touch survey mass be placed in the front end of key, utilize the gravity of the sub-sense of touch survey mass of piano key will be pressed onto extreme lower position by second key from left to right; With left plane for benchmark, the gap of the upper end of more left plane and sub-left side keys of depressed key; Judge that sinking key was dark, moderate or excessively shallow according to gap; Measure each key successively to the right.
Gap criterion is as follows: when the inclined-plane of middle projection and key fit make key sink down into extreme lower position time, left plane and corresponding keys are fitted then for the sinking key degree of depth is moderate (as shown in Figure 6, submergence depth 10 millimeters, without the need to adjustment), the front end of left plane and corresponding keys leave space then for the sinking key degree of depth is excessively shallow (as shown in Figure 7, submergence depth 9.8 millimeters, paper circle need be reduced), the front end of left plane contacts rear end and leaves space then for the sinking key degree of depth is excessively dark (as shown in Figure 8 with corresponding keys, submergence depth 10.2 millimeters, paper circle need be increased).
First key and from right to left first key from left to right, namely
key and C
5whether the sense of touch measurement of key is measured by staff, namely presses extreme lower position with adjacent white key simultaneously, touch in conplane state with hand, judges that the degree of depth of sinking key is suitable, excessively dark or excessively shallow.
Except the mode that the present embodiment is mentioned, counterweight can be fixed on outside main body; The shape of counterweight can be cube shaped; The quantity of counterweight and arrangement also can carry out choose reasonable; Measure and also right plane can be as the criterion to turn left from the right side and carry out.These mapping modes are all in protection scope of the present invention.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. the sub-sense of touch survey mass of piano key, is characterized in that: comprise main body and the counterweight fixing with main body; The lower end of main body comprises left plane, middle projection, right plane, and wherein left plane and right plane are positioned in same level, and the middle projection protruded downwards is between left plane and right plane; The lower surface of middle projection is the inclined-plane of the inclined upward backward from front lower place; When the inclined-plane of middle projection is pressed the front end of next key and fitted with this key, left plane is positioned at directly over sub-left side keys of depressed key, and right plane is positioned at directly over sub-right hand side keys of depressed key.
2., according to the sub-sense of touch survey mass of piano key according to claim 1, it is characterized in that: be provided with installation cavity in described main body, counterweight is positioned at installation cavity.
3., according to the sub-sense of touch survey mass of piano key according to claim 2, it is characterized in that: described main body comprises convex block, rubber cushion, film; The longitudinal cross-section of convex block is inverted " convex " font, and installation cavity is opened in the front end of convex block, and the film identical with the front end size of convex block is fixed on the front end of convex block; Three pieces of elastic mountings are on the surface of convex block, and three pieces of rubber cushions form the inclined-plane of left plane, right plane, middle projection respectively.
4. according to the sub-sense of touch survey mass of piano key according to claim 3, it is characterized in that: the material of described convex block is plastics; The material of rubber cushion is magnetic glue; The material of film is plastics.
5., according to the sub-sense of touch survey mass of piano key according to claim 3, it is characterized in that: described installation cavity be axial direction along fore-and-aft direction extend cylindrical; Counterweight is columniform lead button; The quantity of installation cavity is multiple, and the quantity of counterweight is multiple, places multiple lead button in an installation cavity.
6. according to the sub-sense of touch survey mass of piano key according to claim 3, it is characterized in that: described rubber cushion and film all bond with convex block.
7. according to the sub-sense of touch survey mass of piano key according to claim 1, it is characterized in that: the plane of symmetry centered by the center ofthe position of described middle projection, counterweight is symmetrically arranged centered by Central Symmetry face.
8. according to the sub-sense of touch survey mass of piano key according to claim 1, it is characterized in that: the general assembly (TW) of described counterweight is more than or equal to 220 grams.
9. the sub-sense of touch measuring method of piano key, adopt the sub-sense of touch survey mass of piano key according to any one of claim 1-8, it is characterized in that: sub-for piano key sense of touch survey mass is placed on the front end of key, utilize the gravity of piano key sense of touch survey mass that key is pressed onto extreme lower position; Turn left from left to right or from the right side and measure each key successively; When measuring from left to right, with left plane for benchmark, the gap of the upper end of more left plane and sub-left side keys of each depressed key; When measuring when turning left from the right side, with right plane for benchmark, the gap of the upper end of righter plane and sub-right hand side keys of each depressed key; Judge that key was dark, moderate or excessively shallow according to gap.
10. according to the sub-sense of touch measuring method of piano key according to claim 9, it is characterized in that: when the inclined-plane of middle projection and key fit make key sink down into extreme lower position time, it is then that the sinking key degree of depth is moderate that left plane or right plane and corresponding keys fits, the front end of left plane or right plane and corresponding keys leave space then for the sinking key degree of depth is excessively shallow, and the front end of left plane or right plane contacts rear end and leaves space then for the sinking key degree of depth is excessively dark with corresponding keys; Recorded is that the adjustment of key sense of touch is prepared deeply with excessively shallow key position.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510883583.1A CN105300251B (en) | 2015-12-03 | 2015-12-03 | The sub- sense of touch measuring block of piano key and the sub- sense of touch measuring method of piano key |
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|---|---|---|---|
| CN201510883583.1A CN105300251B (en) | 2015-12-03 | 2015-12-03 | The sub- sense of touch measuring block of piano key and the sub- sense of touch measuring method of piano key |
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| CN105300251B CN105300251B (en) | 2018-05-11 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2768137Y (en) * | 2004-12-31 | 2006-03-29 | 黄三元 | Piano keyboard regulator |
| CN201724665U (en) * | 2010-03-31 | 2011-01-26 | 北京乐器研究所 | Laser ranging device for piano keyboard |
| CN201859644U (en) * | 2010-08-31 | 2011-06-08 | 段毅 | Device for calibrating piano keyboard |
| JP3185339U (en) * | 2013-03-07 | 2013-08-15 | 瑛子 高瀬 | Keyboard instrument training aids |
| CN204390723U (en) * | 2014-11-05 | 2015-06-10 | 甘茂鹏 | Based on piano key state-detection and the indicating device of light-inductive technology |
| CN205300471U (en) * | 2015-12-03 | 2016-06-08 | 广州珠江钢琴集团股份有限公司 | Piece is measured to sub - sense of touch of piano key |
-
2015
- 2015-12-03 CN CN201510883583.1A patent/CN105300251B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2768137Y (en) * | 2004-12-31 | 2006-03-29 | 黄三元 | Piano keyboard regulator |
| CN201724665U (en) * | 2010-03-31 | 2011-01-26 | 北京乐器研究所 | Laser ranging device for piano keyboard |
| CN201859644U (en) * | 2010-08-31 | 2011-06-08 | 段毅 | Device for calibrating piano keyboard |
| JP3185339U (en) * | 2013-03-07 | 2013-08-15 | 瑛子 高瀬 | Keyboard instrument training aids |
| CN204390723U (en) * | 2014-11-05 | 2015-06-10 | 甘茂鹏 | Based on piano key state-detection and the indicating device of light-inductive technology |
| CN205300471U (en) * | 2015-12-03 | 2016-06-08 | 广州珠江钢琴集团股份有限公司 | Piece is measured to sub - sense of touch of piano key |
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| Publication number | Publication date |
|---|---|
| CN105300251B (en) | 2018-05-11 |
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