CN201725549U - Repetition accelerating mechanism for upright piano - Google Patents
Repetition accelerating mechanism for upright piano Download PDFInfo
- Publication number
- CN201725549U CN201725549U CN2010202544996U CN201020254499U CN201725549U CN 201725549 U CN201725549 U CN 201725549U CN 2010202544996 U CN2010202544996 U CN 2010202544996U CN 201020254499 U CN201020254499 U CN 201020254499U CN 201725549 U CN201725549 U CN 201725549U
- Authority
- CN
- China
- Prior art keywords
- repetition
- torsion spring
- push rod
- device cam
- cam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
- G10C3/00—Details or accessories
- G10C3/16—Actions
- G10C3/161—Actions specially adapted for upright pianos
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
- G10C1/00—General design of pianos, harpsichords, spinets or similar stringed musical instruments with one or more keyboards
- G10C1/02—General design of pianos, harpsichords, spinets or similar stringed musical instruments with one or more keyboards of upright pianos
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
- G10C3/00—Details or accessories
- G10C3/16—Actions
- G10C3/24—Repetition [tremolo] mechanisms
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
- G10C3/00—Details or accessories
- G10C3/16—Actions
- G10C3/18—Hammers
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The utility model discloses a repetition accelerating mechanism for an upright piano. The repetition accelerating mechanism comprises an interlocking bar, a total gear, a carrier rod and a pounder cam, wherein one end of the total gear is hinged with one end of the interlocking bar, while the other end thereof opposite to the interlocking bar is hinged with the pounder cam; one end of the carrier rod is hinged with the other end of the interlocking bar, while the other end thereof opposite to the interlocking bar is pressed against the arc-shaped surface of the pounder cam; a hammer head handle and a brake handle are fixed on the pounder cam; the brake handle is provided with a repetition torsion spring seat; a support shaft of the repetition torsion spring seat is sleeved with a repetition torsion spring; and an elastic pin of the repetition torsion spring leans on the repetition torsion spring seat, while the other elastic pin leans on the side face of carrier rod opposite to the total gear. An adjustable repetition torsion spring is arranged between the carrier rod and the brake handle of the pounder cam, so that the situation of inappropriate or unavailable return of the carrier rod caused by rapid playing is avoided effectively and the playing speed and playing effect of the upright piano are improved.
Description
Technical field
The utility model relates to a kind of instrument structure, relates in particular to a kind of upright piano repetition acceleration mechanism.
Background technology
The domestic and international at present upright piano of producing, because of the limitation of hammered string instrument structure, the repetition function is perfect inadequately.When the player plays the music of quick beat, or during a certain phoneme of quick playing, push rod can not be got back to fast to change and hits under the arch surface of device cam, causes that not cause hammerhead to hit string entirely unable or can not hit the situation of string pronunciation because of the push rod return can not cause hammerhead because of the push rod return.Therefore the repetition function of upright piano is limited, can only reach the speed of per second 7 to 8 times, and can not reach the repetition speed of grand piano per second 12 times, has limited the playing effect of upright piano.
Summary of the invention
The purpose of this utility model provides a kind of repetition speed of upright piano and piano repetition acceleration mechanism of sensitivity of improving.
For achieving the above object, upright piano repetition acceleration mechanism of the present utility model comprises that gangbar, total shelves, push rod, commentaries on classics hit the device cam, described total shelves are fixed on the qin frame, and an end of one end and gangbar is hinged, total grade dorsad the other end of gangbar and commentaries on classics to hit the device cam hinged; One end and the gangbar other end of described push rod are hinged, and the push rod other end of gangbar dorsad leans in commentaries on classics and hits on the arch surface of device cam, and when pressing key, the push rod pushing tow changes and hits the device cam and skid off from the end that arch surface deviates from total grade of articulated position; Change to hit being fixed with hammerhead handle and clamping handle on the device cam, described hammerhead handle is located to change and is hit a device cam side of arch surface dorsad, and described clamping handle is located at the arch surface push rod and is skidded off between an end and the hammerhead handle; Wherein, clamping handle is provided with repetition torsion spring seat, is arranged with the repetition torsion spring on the back shaft of repetition torsion spring seat, and an elastic foot of repetition torsion spring leans against on the repetition torsion spring seat, and another elastic foot leans against on the side of total dorsad shelves of push rod.
Adopt this structure, when key was pressed, gangbar drives the push rod pushing tow that makes progress changeed and hits the device cam and skid off from the arch surface that the device cam is hit in commentaries on classics, changeed to hit the device cam and knock string around total grade of hammerhead that rotates and drive on the hammerhead handle.When key lifts, change and to hit the revolution of device cam, an elastic foot of the repetition torsion spring pushing tow that makes progress changes the clamping handle that hits the device cam, makes it slow down speed of gyration; Simultaneously, another elasticity of repetition torsion spring is hit the rotating strength of device cam by commentaries on classics and is impelled push rod to accelerate return, enters to change and hits under the arch surface of device cam.So just can avoid effectively the complete or return of return that quick repetition causes can not situation.
Repetition torsion spring seat of the present utility model is provided with threaded adjustment screw, and an end of this adjustment screw leans against on the elastic foot of repetition torsion spring, and the other end of adjusting screw is to stretch out the outer adjustment screw terminal of repetition torsion spring seat.Adjust screw terminal by rotation and regulate the position of adjustment screw at repetition torsion spring seat, can change the position of an elastic foot on repetition torsion spring seat of adjusting the repetition torsion spring, thereby adjust the dynamics of reversing of repetition torsion spring flexibly, change the repetition speed of upright piano.
The position that another elastic foot of repetition torsion spring leans on the push rod of the present utility model is provided with arc chute, and another elastic foot of repetition torsion spring leans against in the arc chute of push rod.Adopt this structure, along with push rod with change the change hit the device cam position, another elastic foot of repetition torsion spring can slide at arc chute, and the less and elastic foot of its sliding resistance is difficult for deviating from, and makes that playing fast of upright piano is more reliable.
In sum, the utility model compared with prior art, the utility model is by being provided with adjustable repetition torsion spring between the clamping handle that hits the device cam in push rod and commentaries on classics, avoided push rod effectively because play not in place or the situation that can't return of the return of appearance fast, the repetition speed of upright piano is brought up to the repetition speed of grand piano, promoted the playing effect of upright piano.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail: the structural representation when Fig. 1 presses for the key of repetition acceleration mechanism of the present utility model; Structural representation when Fig. 2 lifts for the key of repetition acceleration mechanism of the present utility model; Fig. 3 is the partial structurtes synoptic diagram of repetition acceleration mechanism of the present utility model.
Embodiment
As shown in Figure 1, 2, 3, upright piano repetition acceleration mechanism of the present utility model comprises gangbar 1, total shelves 2, push rod 3, changes and hit device cam 4, described total shelves 2 are fixed on the qin frame, one end 21 is hinged with an end 11 of gangbar 1, total shelves 2 dorsad the other end 22 and the commentaries on classics of gangbar 1 to hit device cam 4 hinged; One end 31 of described push rod 3 is hinged with gangbar 1 other end 12, push rod 3 other end 32 of gangbar 1 dorsad leans in commentaries on classics and hits on the arch surface 41 of device cam 4, when pressing key, push rod 3 pushing tows change and to hit device cam 4 and skid off from the end 42 that arch surface 41 deviates from total shelves 2 articulated position; Change to hit being fixed with hammerhead handle 43 and clamping handle 44 on the device cam 4, described hammerhead handle 43 is located to change and is hit device cam 4 side of arch surface 41 dorsad, and described clamping handle 44 is located at arch surface 41 push rods and is skidded off between an end 42 and the hammerhead handle 43; Wherein, clamping handle 44 is provided with repetition torsion spring seat 5, is arranged with repetition torsion spring 52 on the back shaft 51 of repetition torsion spring seat 5, and an elastic foot 521 of repetition torsion spring 52 leans against on the repetition torsion spring seat 5, and another elastic foot 522 leans against on the side of total dorsad shelves 2 of push rod 3.
When key is pressed, gangbar 1 drive push rod 3 upwards pushing tow change an end 42 that hits device cam 4 and hit the arch surface 41 of device cam 4 from commentaries on classics and skid off, change and hit device cam 4 and knock string around the hammerhead that total shelves 2 rotate and drive on the hammerhead handle 42.When key lifts, change and hit 4 revolutions of device cam, an elastic foot 521 of repetition torsion spring 52 upwards pushing tow changes the clamping handle 44 that hits device cam 4, makes it slow down speed of gyration; Simultaneously, another elasticity 522 of repetition torsion spring 52 is hit device cam 4 rotating strength by commentaries on classics and is impelled push rod 3 to accelerate returns, and entering changes the arch surface 41 times of hitting device cam 4.
Repetition torsion spring seat 5 of the present utility model is provided with threaded adjustment screw 6, and an end 61 of this adjustment screw 6 leans against on the elastic foot 521 of repetition torsion spring 52, and the other end 62 of adjusting screw 6 is for stretching out the adjustment screw terminal outside the repetition torsion spring seat 5.
The position that repetition torsion spring 52 another elastic foots 522 lean on the push rod 3 of the present utility model is provided with arc chute 33, and repetition torsion spring 52 another elastic foots 522 lean against in the arc chute 33 of push rod 3.
Claims (3)
1. upright piano repetition acceleration mechanism comprises that gangbar, total shelves, push rod, commentaries on classics hit the device cam, and described total shelves are fixed on the qin frame, and an end of one end and gangbar is hinged, always grade dorsad the other end of gangbar and commentaries on classics to hit the device cam hinged; One end and the gangbar other end of described push rod are hinged, and the push rod other end of gangbar dorsad leans in commentaries on classics and hits on the arch surface of device cam, and when pressing key, the push rod pushing tow changes and hits the device cam and skid off from the end that arch surface deviates from total grade of articulated position; Change to hit being fixed with hammerhead handle and clamping handle on the device cam, described hammerhead handle is located to change and is hit a device cam side of arch surface dorsad, and described clamping handle is located at the arch surface push rod and is skidded off between an end and the hammerhead handle; It is characterized in that: clamping handle is provided with repetition torsion spring seat, is arranged with the repetition torsion spring on the back shaft of repetition torsion spring seat, and an elastic foot of repetition torsion spring leans against on the repetition torsion spring seat, and another elastic foot leans against on the side of total dorsad shelves of push rod.
2. a kind of upright piano repetition acceleration mechanism according to claim 1, it is characterized in that: described repetition torsion spring seat is provided with threaded adjustment screw, one end of this adjustment screw leans against on the elastic foot of repetition torsion spring, and the other end of adjusting screw is to stretch out the outer adjustment screw terminal of repetition torsion spring seat.
3. a kind of upright piano repetition acceleration mechanism according to claim 1 and 2, it is characterized in that: the position that another elastic foot of repetition torsion spring leans on the described push rod is provided with arc chute, and another elastic foot of repetition torsion spring leans against in the arc chute of push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202544996U CN201725549U (en) | 2010-07-12 | 2010-07-12 | Repetition accelerating mechanism for upright piano |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202544996U CN201725549U (en) | 2010-07-12 | 2010-07-12 | Repetition accelerating mechanism for upright piano |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201725549U true CN201725549U (en) | 2011-01-26 |
Family
ID=43493894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202544996U Expired - Fee Related CN201725549U (en) | 2010-07-12 | 2010-07-12 | Repetition accelerating mechanism for upright piano |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201725549U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT514688A4 (en) * | 2013-11-05 | 2015-03-15 | Ernest Bittner | Piano mechanics with multiple keys |
| CN106531126A (en) * | 2016-12-29 | 2017-03-22 | 北京乐器研究所 | Upright piano |
| CH714634A1 (en) * | 2018-02-09 | 2019-08-15 | Kummer Fernand | Flexible rehearsal lever for the exhaust system of a upright piano. |
| CN117116235A (en) * | 2023-10-23 | 2023-11-24 | 晋江和祥盛电子科技有限公司 | Electric piano |
-
2010
- 2010-07-12 CN CN2010202544996U patent/CN201725549U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT514688A4 (en) * | 2013-11-05 | 2015-03-15 | Ernest Bittner | Piano mechanics with multiple keys |
| AT514688B1 (en) * | 2013-11-05 | 2015-03-15 | Ernest Bittner | Piano mechanics with multiple keys |
| EP2869295A1 (en) | 2013-11-05 | 2015-05-06 | Ernest Bittner | Piano mechanism with multiple keys |
| CN104616638A (en) * | 2013-11-05 | 2015-05-13 | 安纳司·毕德内 | Piano mechanical device |
| CN104616638B (en) * | 2013-11-05 | 2018-03-02 | 安纳司·毕德内 | Piano mechanical device |
| CN106531126A (en) * | 2016-12-29 | 2017-03-22 | 北京乐器研究所 | Upright piano |
| CN106531126B (en) * | 2016-12-29 | 2023-10-10 | 北京乐器研究所 | Vertical piano |
| CH714634A1 (en) * | 2018-02-09 | 2019-08-15 | Kummer Fernand | Flexible rehearsal lever for the exhaust system of a upright piano. |
| CN117116235A (en) * | 2023-10-23 | 2023-11-24 | 晋江和祥盛电子科技有限公司 | Electric piano |
| CN117116235B (en) * | 2023-10-23 | 2024-02-13 | 晋江和祥盛电子科技有限公司 | Electric piano |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20140712 |
|
| EXPY | Termination of patent right or utility model |