CN108022570B - Positioning tool for string striking machine - Google Patents
Positioning tool for string striking machine Download PDFInfo
- Publication number
- CN108022570B CN108022570B CN201711482821.3A CN201711482821A CN108022570B CN 108022570 B CN108022570 B CN 108022570B CN 201711482821 A CN201711482821 A CN 201711482821A CN 108022570 B CN108022570 B CN 108022570B
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- China
- Prior art keywords
- positioning
- plate
- frame
- bracket
- string striking
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- 239000000463 material Substances 0.000 claims description 7
- 239000002023 wood Substances 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 238000005553 drilling Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009527 percussion Methods 0.000 description 2
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
- G10C9/00—Methods, tools or materials specially adapted for the manufacture or maintenance of musical instruments covered by this subclass
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Percussive Tools And Related Accessories (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to the field of positioning and mounting of piano parts, in particular to a positioning tool for a piano string striking machine. The utility model provides a hit string machine location frock finds the mounting hole of hits string machine on the centre plate, includes: the positioning frame is placed on the middle disc of the piano, the positioning bracket is used for indicating the position of the mounting hole, and the positioning plate is used for positioning the left and right directions of the positioning frame; the positioning frame comprises a long plate and a short plate, the long plate and the short plate are fixedly connected with each other through screws to form a rectangular frame, the positioning support is fixedly connected to the positioning frame, the positioning plate comprises a first positioning plate and a second positioning plate, one end of the first positioning plate is fixed to the short plate of the positioning frame, and the second positioning plate is connected with the other end of the first positioning plate. The positioning tool for the string striking machine before installation is simple in operation steps, accurate in positioning and capable of effectively improving working efficiency.
Description
Technical Field
The invention relates to the field of positioning and mounting of piano parts, in particular to a positioning tool for a piano string striking machine.
Background
The piano action is one of the core components of a piano. The piano string striking machine consists of a bracket, a main gear, a linkage, a percussion device, a damper and other parts, and is a main part for percussion string vibration, which can also be said to be the heart of a piano.
The main task of the middle plate is to support the reasonable operation of the string striking machine, the keyboard and the string striking machine are directly connected with the upper surface of the middle plate, the lower lock is attached to the front surface of the middle plate, and the side arms and the side plates of the same wood as other parts of the shell are attached to the front surface and the two side surfaces of the middle plate.
The hammer is positioned before being installed, so that the hammer and the hammer point of the hammer are mutually corresponding after being installed. The positioning method before the installation of the string striking machine is generally as follows: after the distance from the inner side of the lower lock gear of the piano to the total gear of the string striking machine and the string striking distance are measured, the positions of the corresponding mounting holes are marked on the middle disc of the piano, so that the mounting holes of the string striking machine are obtained, and the mounting holes are drilled by using an electric drill.
The positioning method in the prior art has the defects of complicated positioning process, long time consumption, low positioning accuracy, unreasonable control of drilling depth during drilling, large uncertainty in determining the drilling depth only by experience of drilling staff, inconsistent drilling depth of mounting holes, inaccurate installation of a string striking machine and damage to the quality of a piano.
Disclosure of Invention
Aiming at the technical problems existing in the prior art, the invention aims at: the positioning tool for the string striking machine is simple in structure, convenient to use and capable of being repeatedly utilized.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a hit string machine location frock finds the mounting hole of hits string machine on the centre plate, includes: the positioning frame is placed on the middle disc of the piano, the positioning bracket is used for indicating the position of the mounting hole, and the positioning plate is used for positioning the left and right directions of the positioning frame; the locating support fixed connection is on the locating frame, and the locating plate includes first locating plate and second locating plate, and the one end of first locating plate is fixed on the locating frame, and the second locating plate is connected with the other end of first locating plate.
The positioning frame comprises a long plate and a short plate, the long plate and the short plate are fixedly connected through screws, the long plate and the short plate are mutually perpendicular, and the short plates are mutually parallel; the two long plates and the two short plates are fixedly connected with a rectangular frame, and a plurality of short plates are also distributed in the frame.
The first positioning plate is of a Z-shaped structure and comprises a first horizontal section, a rising section and a second horizontal section; the first horizontal section is fixed on the short plate of the positioning frame, the second horizontal section is connected with one side of the second positioning plate, and the other side of the second positioning plate is provided with scale marks for aligning the position of the designated string striking point.
The designated hit point is 88# hit point.
The positioning brackets are distributed on the length direction of the positioning frame and are distributed on the same side of the positioning frame, each positioning bracket comprises a first positioning bracket and a second positioning bracket, two ends of the length direction of the positioning frame are respectively provided with a first positioning bracket, and a second positioning bracket is arranged on a long plate in the middle of the two first positioning brackets.
One side of the positioning bracket is fixed on the positioning frame through a screw, and the other side is provided with a positioning hole for indicating the position of the mounting hole.
The other side of the positioning frame in the length direction is provided with a positioning screw used for leaning against the lower lock stop and positioning the positioning frame in the front-back direction.
The number of the scale marks is three, and the three scale marks are respectively aligned with three chords of the 88# string striking point, so that the left and right directions of the positioning frame are positioned. After the structure is adopted, three scale marks are positioned simultaneously, and the positioning accuracy is effectively improved.
The material of the positioning frame is wood, and the material of the positioning bracket and the positioning plate is metal. The cost is saved, the quality is light, the wood is soft, the middle plate of the piano can be better protected in the use process, and the scratch piano is avoided.
The locating plate and the locating bracket are respectively provided with a through hole for installing a screw.
In general, the invention has the following advantages:
1. the positioning tool for the string striking machine before installation is simple in operation steps, accurate in positioning and capable of effectively improving working efficiency.
2. The invention controls the depth of the mounting hole through the height of the positioning bracket and the diameter of the positioning hole, thereby ensuring the stable and accurate installation of the string striking machine.
3. The invention has simple structure, convenient manufacture and lower manufacture cost.
4. The invention can be repeatedly used for a plurality of times, and can be used when the string striking machine of the same type piano locates the tool.
5. The positioning frame made of wood materials can avoid the positioning tool of the string striking machine from scraping the piano to a great extent.
Drawings
Fig. 1 is a top view of a string striking machine positioning fixture.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a schematic structural view of the positioning plate.
The reference numerals and corresponding parts and components in the drawings are: 1. the device comprises a positioning frame, 2, a first positioning plate, 3, a second positioning plate, 4, a long plate, 5, a short plate, 6, a screw, 7, a first horizontal section, 8, a rising section, 9, a second horizontal section, 10, scale marks, 11, a first positioning bracket, 12, a second positioning bracket, 13, a positioning hole, 14, a positioning screw, 15 and a positioning bracket.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description.
The utility model provides a hit string machine location frock for find the mounting hole of hits string machine on the chassis, include: positioning frame, locating support and locating plate.
The positioning frame is placed on the middle plate of the piano and comprises a long plate and a short plate, the long plate and the short plate are fixedly connected through screws, the long plate and the short plate are mutually perpendicular, and the short plates are mutually parallel; the two long plates and the two short plates are fixedly connected with a rectangular frame, and three short plates are also distributed in the frame.
The locating support is used for indicating the mounting hole position, and the locating support includes first locating support and second locating support, and locating frame length direction's both ends respectively are equipped with a first locating support, are equipped with the second locating support on the longeron in the middle of the two first locating supports. One side of the positioning bracket is fixed on the positioning frame through a screw, and the other side is provided with a positioning hole for indicating the position of the mounting hole.
The positioning plate is used for positioning the left and right directions of the positioning frame and comprises a first positioning plate and a second positioning plate, the first positioning plate is of a Z-shaped structure, and the first positioning plate comprises a first horizontal section, a rising section and a second horizontal section; the first horizontal section is fixed on the short plate of the positioning frame, the second horizontal section is connected with one side of the second positioning plate, and three scale lines for respectively aligning three strings of the 88# string striking points are arranged on the other side of the second positioning plate. Thereby positioning the left and right directions of the positioning frame.
The positioning screw is used for positioning the front and back directions of the positioning frame, and the positioning screw is arranged on the other side of the positioning frame, which corresponds to the positioning bracket. The positioning screw is abutted against the lower lock gear, so that the front of the positioning frame is positioned.
The material of the positioning frame is wood, and the material of the positioning bracket and the positioning plate is metal. The locating plate and the locating bracket are respectively provided with a through hole for installing a screw.
The manufacturing method comprises the following steps: according to the type of the piano required to be provided with the string striking machine, the size of the middle disc of the piano required to be provided with the string striking machine is obtained, the length and width sizes of the positioning frame are further obtained, the thickness size of the positioning frame is determined by the depth of the required mounting hole of the string striking machine, and the long plate and the short plate are cut by the size of the positioning frame. And determining the diameter of the positioning hole of the second positioning plate according to the depth of the mounting hole and the diameter of the drill bit of the drilling tool, and taking relevant strength factors into consideration to obtain the width and thickness dimensions of the second positioning plate, so as to manufacture the positioning plate. The long plates and the short plates are fixedly connected by utilizing screws, wherein the two short plates are positioned at two ends of the two long plates which are parallel to each other, the installation position of the other short plate is determined according to the position of the positioning plate which needs to be fixed in the positioning frame, and the other two short plates or a plurality of short plates are distributed and arranged in the frame. The first positioning brackets are arranged at two ends of the positioning frame by using screws, the second positioning brackets are arranged at positions, corresponding to the positions where the mounting holes need to be formed, between the two first positioning brackets, the first horizontal section of the first positioning plate is fixed on the short plate of the positioning frame by using screws, and the second positioning plate is connected with the second horizontal section of the first positioning plate by using screws. And a positioning screw is arranged on the other side of the positioning frame, which corresponds to the positioning bracket. And the whole string striking machine positioning tool is manufactured.
The using method comprises the following steps: placing the string striking machine positioning tool on a middle plate of a piano of a corresponding model, aligning three scale marks on a second positioning plate with three strings of 88# string striking points of the piano to determine the left-right direction position of the string striking machine positioning tool, and moving the string striking machine positioning tool in the front-back direction, so that a positioning screw is attached to a lower lock gear of the piano to determine the front-back direction position of the string striking machine positioning tool; after the position of the positioning tool of the string striking machine is determined, a drilling tool is used for drilling a mounting hole at a positioning hole on the positioning bracket until a drill bit of the drilling tool cannot continue to drill downwards in the positioning hole, so that the depth of the mounting hole is determined. And after the positioning holes are drilled, the positioning tool of the string striking machine is taken down from the piano disc, and the positioning and mounting procedures of the string striking machine are completed.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a hit string machine location frock finds the mounting hole of hits string machine on the centre pan, its characterized in that includes: the positioning frame is placed on the middle disc of the piano, the positioning bracket is used for indicating the position of the mounting hole, and the positioning plate is used for positioning the left and right directions of the positioning frame; the positioning support is fixedly connected to the positioning frame, the positioning plate comprises a first positioning plate and a second positioning plate, one end of the first positioning plate is fixed to the positioning frame, and the second positioning plate is connected with the other end of the first positioning plate;
the positioning frame comprises a long plate and a short plate, the long plate and the short plate are fixedly connected through screws, the long plate and the short plate are mutually perpendicular, and the short plates are mutually parallel; the two long plates and the two short plates are fixedly connected with a rectangular frame, and a plurality of short plates are also distributed in the frame;
the first positioning plate is of a Z-shaped structure and comprises a first horizontal section, a rising section and a second horizontal section; the first horizontal section is fixed on a short plate of the positioning frame, the second horizontal section is connected with one side of the second positioning plate, and the other side of the second positioning plate is provided with scale marks for aligning the designated string striking points;
the positioning brackets are distributed on the same side of the positioning frame in the length direction of the positioning frame, each positioning bracket comprises a first positioning bracket and a second positioning bracket, and two ends of the positioning frame in the length direction are respectively provided with a first positioning bracket;
a positioning screw used for leaning against the lower lock stop and positioning the front and back directions of the positioning frame is arranged on the other side of the length direction of the positioning frame;
the number of the scale marks is three, and the three scale marks are respectively aligned with three strings of the 88# string striking point, so that the left and right directions of the positioning frame are positioned;
the designated hit point is 88# hit point.
2. The string striking machine positioning fixture according to claim 1, wherein: the long plate in the middle of the two first positioning brackets is provided with a second positioning bracket.
3. The string striking machine positioning fixture according to claim 2, wherein: one side of the positioning bracket is fixed on the positioning frame through a screw, and the other side is provided with a positioning hole for indicating the position of the mounting hole.
4. The string striking machine positioning fixture according to claim 1, wherein: the material of the positioning frame is wood, and the material of the positioning bracket and the positioning plate is metal.
5. The string striking machine positioning fixture according to claim 1, wherein: the locating plate and the locating bracket are respectively provided with a through hole for installing a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711482821.3A CN108022570B (en) | 2017-12-29 | 2017-12-29 | Positioning tool for string striking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711482821.3A CN108022570B (en) | 2017-12-29 | 2017-12-29 | Positioning tool for string striking machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108022570A CN108022570A (en) | 2018-05-11 |
| CN108022570B true CN108022570B (en) | 2023-12-08 |
Family
ID=62072562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711482821.3A Active CN108022570B (en) | 2017-12-29 | 2017-12-29 | Positioning tool for string striking machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108022570B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0934443A (en) * | 1995-07-18 | 1997-02-07 | Kawai Musical Instr Mfg Co Ltd | Assembling method of upright piano |
| JPH0981123A (en) * | 1995-09-13 | 1997-03-28 | Kawai Musical Instr Mfg Co Ltd | Position adjusting device for upright piano |
| JPH09114450A (en) * | 1995-10-16 | 1997-05-02 | Kawai Musical Instr Mfg Co Ltd | Upright piano |
| JPH09258723A (en) * | 1995-05-02 | 1997-10-03 | Kawai Musical Instr Mfg Co Ltd | Upright piano assembling method |
| JPH11167379A (en) * | 1997-12-01 | 1999-06-22 | Kawai Musical Instr Mfg Co Ltd | Mounting device for action assembly of upright piano |
| CN103909373A (en) * | 2014-04-15 | 2014-07-09 | 安徽安凯汽车股份有限公司 | Positioning rectifying tool and method for engine mounting support |
| CN207781179U (en) * | 2017-12-29 | 2018-08-28 | 广州珠江恺撒堡钢琴有限公司 | Hammered string instrument positioning tool |
-
2017
- 2017-12-29 CN CN201711482821.3A patent/CN108022570B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09258723A (en) * | 1995-05-02 | 1997-10-03 | Kawai Musical Instr Mfg Co Ltd | Upright piano assembling method |
| JPH0934443A (en) * | 1995-07-18 | 1997-02-07 | Kawai Musical Instr Mfg Co Ltd | Assembling method of upright piano |
| JPH0981123A (en) * | 1995-09-13 | 1997-03-28 | Kawai Musical Instr Mfg Co Ltd | Position adjusting device for upright piano |
| JPH09114450A (en) * | 1995-10-16 | 1997-05-02 | Kawai Musical Instr Mfg Co Ltd | Upright piano |
| JPH11167379A (en) * | 1997-12-01 | 1999-06-22 | Kawai Musical Instr Mfg Co Ltd | Mounting device for action assembly of upright piano |
| CN103909373A (en) * | 2014-04-15 | 2014-07-09 | 安徽安凯汽车股份有限公司 | Positioning rectifying tool and method for engine mounting support |
| CN207781179U (en) * | 2017-12-29 | 2018-08-28 | 广州珠江恺撒堡钢琴有限公司 | Hammered string instrument positioning tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108022570A (en) | 2018-05-11 |
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