CN214152412U - Piano action - Google Patents
Piano action Download PDFInfo
- Publication number
- CN214152412U CN214152412U CN202023172213.2U CN202023172213U CN214152412U CN 214152412 U CN214152412 U CN 214152412U CN 202023172213 U CN202023172213 U CN 202023172213U CN 214152412 U CN214152412 U CN 214152412U
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- Prior art keywords
- linkage
- rod
- connecting rod
- rotary
- hinged
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- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 238000010009 beating Methods 0.000 claims abstract description 20
- 230000009194 climbing Effects 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims description 21
- 230000000903 blocking effect Effects 0.000 claims description 14
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a piano action, which comprises a transmission mechanism, a linkage and a rotary hammer, wherein one end of the transmission mechanism is connected with a key, the other end of the transmission mechanism is hinged with the linkage, a mandril is hinged above the linkage, the rotary hammer is arranged above the mandril, and a hammer head is arranged on the rotary hammer; the transmission mechanism comprises a transmission shaft frame, a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged with the upper end of the transmission shaft frame, the transmission shaft frame is fixed on the piano frame, the other end of the first connecting rod is hinged with the upper end of the second connecting rod, the lower end of the second connecting rod is hinged with the linkage, the first connecting rod is positioned above the keys, and the tail ends of the keys are in movable contact with the first connecting rod; a gear connecting rod is arranged on one side of the linkage device close to the second connecting rod, and a climbing belt is arranged on the rotary beater and is connected with the gear connecting rod through the climbing belt; the linkage device is provided with a linkage shaft bracket, the rotary beater is provided with a rotary beating shaft bracket, and the linkage shaft bracket and the rotary beating shaft bracket are fixed on the piano frame.
Description
Technical Field
The utility model belongs to the technical field of the piano string machine structure, concretely relates to piano string machine structure.
Background
The piano is a keyboard instrument, strikes the key and pulls the hammer in order to strike the string, is connected through the action of struck string machine between key and the hammer, and current action of struck string machine only includes link gear and hammer, and under general condition, the link gear sets up in key mesa top, and the hammer sets up above the link gear again, leads to the piano mesa higher, and the distance from key to string is great, and the whole occupation space of piano is great.
Disclosure of Invention
The utility model aims at solving the defects of the prior art and providing a piano action.
The technical scheme of the utility model as follows:
the piano string striking machine comprises a transmission mechanism, a linkage and a rotary striking device, wherein one end of the transmission mechanism is connected with a key, the other end of the transmission mechanism is hinged with the linkage, a top rod is hinged above the linkage, the rotary striking device is arranged above the top rod, and a hammer is arranged on the rotary striking device; the transmission mechanism comprises a transmission shaft frame, a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged with the upper end of the transmission shaft frame, the transmission shaft frame is fixed on the piano frame, the other end of the first connecting rod is hinged with the upper end of the second connecting rod, the lower end of the second connecting rod is hinged with the linkage, the first connecting rod is positioned above the keys, and the tail ends of the keys are in movable contact with the first connecting rod; a gear connecting rod is arranged on one side of the linkage device close to the second connecting rod, and a climbing belt is arranged on the rotary beater and is connected with the gear connecting rod through the climbing belt; the linkage device is provided with a linkage shaft bracket, the rotary beater is provided with a rotary beating shaft bracket, and the linkage shaft bracket and the rotary beating shaft bracket are fixed on the piano frame.
The linkage device comprises a linkage rod and a top rod, one end of the linkage rod is hinged to the second connecting rod, a linkage shaft bracket is arranged at one end, far away from the second connecting rod, of the linkage rod, the linkage shaft bracket is hinged to the linkage rod, and the top rod is arranged in the middle of the linkage rod through the top rod shaft bracket; the lower end of the mandril shaft frame is fixedly connected with the linkage rod, and the upper end of the mandril shaft frame is hinged with the mandril; the ejector rod is further connected with the linkage rod through a spring, and the spring is arranged on one side facing the second connecting rod.
The blocking rod is fixedly installed on the linkage rod and located between the ejector rod shaft bracket and the second connecting rod, a blocking connecting block is further arranged beside the blocking rod and installed on the linkage rod through a supporting rod, and a first protective sleeve is arranged on one side, facing the adapter, of the blocking connecting block.
The rotary beater is hinged with the rotary beating shaft frame, a second protective sleeve is arranged on one side of the rotary beater, which is in contact with the ejector rod, and a limiting block is arranged at one end, close to the rotary beating shaft frame, of the second protective sleeve.
The first connecting rod sets up the third protective sheath towards the one side middle part of key.
The rotary beater is provided with an elastic hook at one side far away from the second protective sleeve, the free end of the elastic hook extends to the rotary beating shaft frame, and a traction rope connected with the free end of the elastic hook is arranged on the rotary beating shaft frame.
The utility model has the advantages as follows:
1. the action, owing to add drive mechanism between clutch and key, drive mechanism's second connecting rod can set up in the below of key mesa to make the clutch also can set up in key mesa below, such mode of setting can make full use of piano key mesa below space, can not only reduce the height of piano, can reduce the volume of piano moreover, save space.
Drawings
FIG. 1 is a schematic view of the whole structure of the action of the present invention;
fig. 2 is a schematic structural view of the linkage device of the present invention;
the numbers and their corresponding names in the figure are as follows:
1-key, 2-ejector pin, 3-butt, 4-hammer, 5-transmission shaft bracket, 6-first connecting rod, 7-second connecting rod, 8-shift connecting rod, 9-climbing belt, 10-linkage shaft bracket, 11-butt shaft bracket, 12-linkage rod, 13-ejector pin shaft bracket, 14-spring, 15-shift connecting block, 16-supporting rod, 17-first protective sleeve, 18-second protective sleeve, 19-limiting block, 20-third protective sleeve, 21-elastic hook and 22-traction rope.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The piano action as shown in fig. 1-2 comprises a transmission mechanism, a linkage and a rotary hammer, wherein one end of the transmission mechanism is connected with a key 1, the other end of the transmission mechanism is hinged with the linkage, a mandril 2 is hinged above the linkage, a rotary hammer 3 is arranged above the mandril, and a hammer head 4 is arranged on the rotary hammer; the transmission mechanism comprises a transmission shaft frame 5, a first connecting rod 6 and a second connecting rod 7, one end of the first connecting rod is hinged with the upper end of the transmission shaft frame, the transmission shaft frame is fixed on the piano frame, the other end of the first connecting rod is hinged with the upper end of the second connecting rod, the lower end of the second connecting rod is hinged with the linkage, the first connecting rod is positioned above the keys, and the tail ends of the keys are in movable contact with the first connecting rod; a gear connecting rod 8 is arranged on one side of the linkage device close to the second connecting rod, and a climbing belt 9 is arranged on the rotary beater and is connected with the gear connecting rod 8 through the climbing belt; the linkage device is provided with a linkage shaft bracket 10, the rotary beater is provided with a rotary beating shaft bracket 11, and the linkage shaft bracket and the rotary beating shaft bracket are fixed on the piano frame.
The linkage device comprises a linkage rod 12 and a top rod 2, one end of the linkage rod is hinged with the second connecting rod 7, a linkage shaft bracket 10 is arranged at one end, far away from the second connecting rod, of the linkage rod, the linkage shaft bracket is hinged with the linkage rod, and the top rod 2 is arranged in the middle of the linkage rod through a top rod shaft bracket 13; the lower end of the mandril shaft frame is fixedly connected with the linkage rod, and the upper end of the mandril shaft frame is hinged with the mandril; the ejector rod is further connected with the linkage rod through a spring 14, the spring is arranged on one side facing the second connecting rod, the spring is arranged to limit the rotation angle of the ejector rod, the upper end of the ejector rod is not connected with the rotary striker, the ejector rod can contact the oblique lower side of the rotary striker when being jacked upwards, and the ejector rod moves upwards to push the rotary striker to rotate.
The blocking rod 8 is fixedly installed on the linkage rod and located between the ejector rod shaft bracket and the second connecting rod, a blocking connecting block 15 is further arranged beside the blocking rod, the blocking connecting block is installed on the linkage rod through a supporting rod 16, and a first protective sleeve 17 is arranged on one side, facing the adapter, of the blocking connecting block.
The rotary beater 3 is hinged with the rotary beating shaft frame, a second protective sleeve 18 is arranged on one side of the rotary beater, which is in contact with the ejector rod, and a limiting block 19 is arranged at one end, close to the rotary beating shaft frame, of the second protective sleeve.
The first link 6 is provided with a third protective sleeve 20 towards the middle of one side of the key, and a bump 23 protruding towards the first link is arranged on the tail end of the key.
The rotary beater 3 is provided with an elastic hook 21 on one side far away from the second protective sleeve 18, the free end of the elastic hook extends to the rotary beating shaft frame, the rotary beating shaft frame is provided with a traction rope 22 connected with the free end of the elastic hook, and the elastic hook and the traction rope are arranged to limit the rotation angle of the rotary beater.
The materials of the first protective sleeve, the second protective sleeve, the third protective sleeve and the limiting block are all felts, so that the noise generated by mechanical impact of corresponding parts can be avoided except the shockproof effect, and the sound quality of piano playing is improved.
The working principle of the string striking machine is as follows: when the key 1 is knocked, the tail end of the key is upwards warped to enable the bump 23 to upwards push the first connecting rod, the first connecting rod 6 upwards rotates around the transmission shaft frame, the first connecting rod drives the second connecting rod to upwards rotate, the second connecting rod drives the linkage rod 12 to upwards rotate around the linkage shaft frame 10, and when one end of the linkage rod connected with the second connecting rod upwards rotates, the ejector rod on the linkage rod pushes the oblique lower part of the butt, so that the butt rotates around the butt shaft frame 11, and the hammer 4 is driven to knock a string in a direction far away from the key; when the rotary beater rotates under the action of the ejector rod, the traction rope pulls the elastic hook to move towards the direction close to the rotary beater, and after a player loosens the keys, the rotary beater can return quickly by virtue of the weight of the linkage device after the hammer strikes the strings due to the arrangement of the bridle belt; after the player loosens the keys, the keys restore to the horizontal position, the transmission mechanism resets to drive the linkage to reset, so that the rotary hammer is driven to reset, the hammer head is separated from the strings, and a string striking and resetting process is completed.
The action, owing to add drive mechanism between clutch and key, drive mechanism's second connecting rod can set up in the below of key mesa to make the clutch also can set up in key mesa below, such mode of setting can make full use of piano key mesa below space, can not only reduce the height of piano, can reduce the volume of piano moreover, save space.
Claims (6)
1. Piano action, its characterized in that: the piano key comprises a transmission mechanism, a linkage and a rotary beater, wherein one end of the transmission mechanism is connected with a key (1), the other end of the transmission mechanism is hinged with the linkage, a top rod (2) is hinged above the linkage, the rotary beater (3) is arranged above the top rod, and a hammer head (4) is arranged on the rotary beater; the transmission mechanism comprises a transmission shaft frame (5), a first connecting rod (6) and a second connecting rod (7), one end of the first connecting rod is hinged with the upper end of the transmission shaft frame, the transmission shaft frame is fixed on the piano frame, the other end of the first connecting rod is hinged with the upper end of the second connecting rod, the lower end of the second connecting rod is hinged with the linkage, the first connecting rod is positioned above the keys, and the tail ends of the keys are in movable contact with the first connecting rod; a gear connecting rod (8) is arranged on one side of the linkage device close to the second connecting rod, and a climbing belt (9) is arranged on the rotary beater and is connected with the gear connecting rod (8) through the climbing belt; the linkage device is provided with a linkage shaft bracket (10), the rotary beater is provided with a rotary beating shaft bracket (11), and the linkage shaft bracket and the rotary beating shaft bracket are fixed on the piano frame.
2. A piano action according to claim 1, wherein: the linkage device comprises a linkage rod (12) and a top rod (2), one end of the linkage rod is hinged to the second connecting rod (7), a linkage shaft bracket (10) is arranged at one end, far away from the second connecting rod, of the linkage rod, the linkage shaft bracket is hinged to the linkage rod, and the top rod (2) is arranged in the middle of the linkage rod through a top rod shaft bracket (13); the lower end of the mandril shaft frame is fixedly connected with the linkage rod, and the upper end of the mandril shaft frame is hinged with the mandril; the ejector rod is also connected with the linkage rod through a spring (14), and the spring is arranged on one side facing the second connecting rod.
3. A piano action according to claim 2, wherein: the blocking rod (8) is fixedly installed on the linkage rod and located between the ejector rod shaft bracket and the second connecting rod, a blocking connecting block (15) is further arranged beside the blocking rod, the blocking connecting block is installed on the linkage rod through a supporting rod (16), and a first protective sleeve (17) is arranged on one side, facing the adapter, of the blocking connecting block.
4. A piano action according to claim 1, wherein: the rotary beater (3) is hinged with the rotary beating shaft frame, a second protective sleeve (18) is arranged on one side of the rotary beater, which is in contact with the ejector rod, and a limiting block (19) is arranged at one end, close to the rotary beating shaft frame, of the second protective sleeve.
5. A piano action according to claim 1, wherein: and a third protective sleeve (20) is arranged in the middle of one surface of the first connecting rod (6) facing the key.
6. A piano action according to claim 1, wherein: an elastic hook (21) is arranged on one side of the rotary beater (3) far away from the second protective sleeve (18), the free end of the elastic hook extends to the rotary beating shaft frame, and a traction rope (22) connected with the free end of the elastic hook is arranged on the rotary beating shaft frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023172213.2U CN214152412U (en) | 2020-12-25 | 2020-12-25 | Piano action |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023172213.2U CN214152412U (en) | 2020-12-25 | 2020-12-25 | Piano action |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214152412U true CN214152412U (en) | 2021-09-07 |
Family
ID=77541373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023172213.2U Expired - Fee Related CN214152412U (en) | 2020-12-25 | 2020-12-25 | Piano action |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214152412U (en) |
-
2020
- 2020-12-25 CN CN202023172213.2U patent/CN214152412U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210907 |