CN110491356B - Counterweight device for electronic piano - Google Patents
Counterweight device for electronic piano Download PDFInfo
- Publication number
- CN110491356B CN110491356B CN201910801721.5A CN201910801721A CN110491356B CN 110491356 B CN110491356 B CN 110491356B CN 201910801721 A CN201910801721 A CN 201910801721A CN 110491356 B CN110491356 B CN 110491356B
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- connecting piece
- electronic piano
- piece
- key
- weight
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- 230000000149 penetrating effect Effects 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims 5
- 238000010168 coupling process Methods 0.000 claims 5
- 238000005859 coupling reaction Methods 0.000 claims 5
- 230000005484 gravity Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004904 shortening Methods 0.000 abstract 1
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/32—Constructional details
- G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
- G10H1/344—Structural association with individual keys
- G10H1/346—Keys with an arrangement for simulating the feeling of a piano key, e.g. using counterweights, springs, cams
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/32—Constructional details
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/32—Constructional details
- G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
The invention relates to the technical field of electronic musical instruments, in particular to a counterweight device for an electronic piano, which comprises a fixed seat, a counterweight piece, a first connecting piece used for being connected with a key of the electronic piano and a second connecting piece used for being connected with a body of the electronic piano, wherein the counterweight piece is connected with one end of the fixed seat, the second connecting piece is rotationally connected with the other end of the fixed seat, the first connecting piece is rotationally connected with the fixed seat, and the joint of the first connecting piece and the fixed seat is positioned between the counterweight piece and the second connecting piece. The invention replaces the weight lever which is required to be arranged below the key by the weight device which can be arranged at the end part of the key and the gravity center of which can be changed along with the different pressing degrees of users, thereby ensuring the pressing hand feeling of the key, shortening the length of the key and achieving the effect of realizing the miniaturization of the electronic piano so as to improve the portability of the electronic piano.
Description
Technical Field
The invention relates to the technical field of electronic musical instruments, in particular to a counterweight device for an electronic piano.
Background
In order to enable an electronic piano to have the feel of a conventional piano, manufacturers of electronic pianos often use weighting devices to weight keys. The existing full-weight electronic piano is mostly weighted by a weight lever provided below the key. One end of the weight balancing rod is provided with a weight balancing block, the other end of the weight balancing rod is connected with the pressed part of the key, and the middle part of the weight balancing rod is hinged with the body. The gravity center of the weight lever can be changed in the rotating process, and the hand feeling that resistance can be changed in playing in a traditional piano can be well simulated. In order to make the weight lever have a sufficiently long arm of force so as to have a strong resistance when the key is depressed, the key needs to be set longer, which is disadvantageous in achieving miniaturization of the electronic piano and in improving portability of the electronic piano. In order to achieve miniaturization of electronic pianos, light-key pianos that use springs for weight balancing have also appeared in the market, i.e., one end of each spring is connected to one end of each key far from the pressed position, and the other end of each spring is connected to the body. The spring stretches when the user presses the key so that the user feels the resistance, but the effect of simulating the hand feeling of the traditional piano by using the spring is poor, because the spring cannot provide stronger resistance, and the resistance provided by the spring is constant, so that the hand feeling of resistance change cannot be simulated.
Disclosure of Invention
The invention provides a counterweight device for an electronic piano, which aims at the problems of the prior art, can realize miniaturization of the electronic piano and improve portability of the electronic piano on the premise of better simulating handfeel of a traditional piano.
The invention adopts the following technical scheme: the utility model provides a counter weight device for electronic piano, includes fixing base, counter weight spare, is used for the first connecting piece of piano connection with electronic piano and is used for the second connecting piece of piano body connection with electronic piano, the counter weight spare is connected with the one end of fixing base, the second connecting piece rotates with the other end of fixing base to be connected, first connecting piece with the fixing base rotates to be connected, and the junction of first connecting piece and fixing base is located between counter weight spare and the second connecting piece.
Preferably, the second connecting piece comprises a connecting arm and a connecting clamp, one end of the connecting arm is rotationally connected with the fixing seat, the other end of the connecting arm is connected with the connecting clamp, and a clamping opening of the connecting clamp faces upwards or downwards.
Preferably, the connecting clip is formed with a protruding block at one end far away from the clip opening.
Preferably, the side end of the first connecting piece is provided with a groove into which the key of the electronic piano extends.
Preferably, the weight device for an electronic piano further includes a resistance elastic member, one end of the resistance elastic member is connected with the first connecting member, and the other end of the resistance elastic member is connected with the second connecting member.
Preferably, one end of the resistance elastic member is detachably connected with the first connecting member, and the other end of the resistance elastic member is detachably connected with the second connecting member.
Preferably, the one end of the resistance elastic member is provided with a first connecting hook, the other end of the resistance elastic member is provided with a second connecting hook, the first connecting member is provided with a first hook body penetrating through the first connecting hook, and the second connecting member is provided with a second hook body penetrating through the second connecting hook.
Preferably, the fixing base comprises a first fixing plate and a second fixing plate detachably connected with the first fixing plate, and the counterweight is clamped by the first fixing plate and the second fixing plate; the counterweight is provided with a through hole, and the first fixing plate is provided with a limiting convex column penetrating through the through hole.
Preferably, the second fixing plate is provided with a plurality of clamping pins, and the first fixing plate is provided with clamping grooves which are clamped with the clamping pins.
Preferably, the first connecting piece is provided with a first connecting shaft rotationally connected with the fixing seat, the second connecting piece is provided with a second connecting shaft rotationally connected with the fixing seat, and the periphery of the first connecting shaft abuts against the periphery of the second connecting shaft.
The invention has the beneficial effects that: the weight lever which is required to be arranged below the key is replaced by the weight device which can be arranged at the end of the key and the gravity center of which can change along with the different pressing degrees of the user, so that the length of the key can be set shorter on the premise of ensuring the pressing handfeel of the key, and the effect of realizing the miniaturization of the electronic piano so as to improve the portability of the electronic piano is achieved.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a perspective view of another perspective view of the present invention.
Fig. 3 is a perspective view of the second fixing plate hidden in the present invention.
The reference numerals are: 1. a fixing seat; 11. a first fixing plate; 12. a second fixing plate; 13. limiting convex columns; 14. a clamping foot; 15. a clamping groove; 2. a weight member; 21. a through hole; 3. a first connector; 31. a groove; 32. a first connecting shaft; 33. a first hook body; 4. a second connector; 41. a connecting arm; 42. a connecting clip; 43. a bump; 44. a second connecting shaft; 45. a second hook body; 5. a resistance elastic member; 51. a first connecting hook; 52. and a second connecting hook.
Detailed Description
The invention will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the invention. The present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, a weight device for an electronic piano comprises a fixing base 1, a weight 2, a first connecting piece 3 for being connected with a key of the electronic piano, and a second connecting piece 4 for being connected with a body of the electronic piano, wherein the weight 2 is connected with one end of the fixing base 1, the second connecting piece 4 is rotatably connected with the other end of the fixing base 1, the first connecting piece 3 is rotatably connected with the fixing base 1, and a joint between the first connecting piece 3 and the fixing base 1 is located between the weight 2 and the second connecting piece 4.
The end of the key for being pressed by a user is used as a pressing end, the end far away from the pressing end is used as a connecting end, and the middle part of the key is hinged with the body. When the invention is used, the second connecting piece 4 is fixed on the body at a position close to the connecting end, and the second connecting piece 4 is positioned below the key. The connecting end of the key is connected to the first connecting piece 3. When a user presses the pressing end of the key, the connecting end of the key is tilted up and drives the first connecting piece 3 to ascend, and the first connecting piece 3 also drives the fixing seat 1 to rotate. The weight 2 on the holder 1 resists the first connecting member 3 from rising under the force of gravity so that the user feels resistance when pressing the key. When the fixing seat 1 rotates, the connection part of the fixing seat 1 and the second connecting piece 4 is used as a rotating shaft, the horizontal projection length from the end part of the fixing seat 1 to the connection part of the fixing seat 1 and the second connecting piece 4 can be changed, namely, the gravity center of the fixing seat 1 can be changed, so that the resistance felt when a user presses keys to different depths is different, and the change of the resistance can be felt in the pressing process, so that the hand feeling of a traditional piano is well simulated. The conventional weight lever is limited in height by being disposed in a space between the key and the body, and can increase resistance only by extending the arm of force. The fixing seat 1 is positioned at the end part of the key, can be protruded relative to the key, and the height of the fixing seat 1 is not limited by the key, so that the longitudinal space can be effectively utilized without increasing resistance by means of a long arm of force, and the key which is used for carrying out weight balancing by using the invention can be set to be shorter in length. In traditional counter weight pole to the junction of counter weight pole and musical instrument body is as the demarcation point, and the demarcation point is the arm of force that the key adopted to counter weight pole and key connection one end, and the demarcation point is the arm of force that the balancing weight adopted to the one end that counter weight pole and balancing weight are connected, and two arms of force do not overlap each other, therefore need to set up the counter weight pole longer, lead to the length of key longer. In the invention, the connection part of the first connecting piece 3 and the fixing base 1 is positioned between the weight piece 2 and the second connecting piece 4, and the first connecting piece 3 is used for being connected with the key, which is equivalent to that the arm of force adopted by the key is overlapped on the arm of force used by the weight piece 2, so that the fixing base 1 can adopt a shorter length. The present invention replaces the weight lever that needs to be provided under the key by using the weight device that can be provided at the end of the key and whose center of gravity can be changed according to the depth of the user's depression of the key, thereby enabling the length of the key to be set shorter and achieving the effect of achieving miniaturization of the electronic piano to improve portability of the electronic piano.
As shown in fig. 3, the second connecting piece 4 includes a connecting arm 41 and a connecting clip 42, one end of the connecting arm 41 is rotatably connected with the fixing base 1, the other end of the connecting arm 41 is connected with the connecting clip 42, and the clip opening of the connecting clip 42 faces upwards or downwards, so that the connecting clip 42 can clamp the body when the second connecting piece 4 is connected with the body of the electronic piano, thereby achieving the effect of facilitating the assembly of the electronic piano.
As shown in fig. 3, a protruding block 43 is formed at one end of the connecting clip 42 away from the clip opening, and the protruding block 43 can further limit the second connecting piece 4, so as to prevent the first connecting piece 3 from self-shifting.
As shown in fig. 2, the side end of the first connecting member 3 is provided with a recess 31 into which the key of the electronic piano is inserted, and the first connecting member 3 and the key are connected by a simple structure, so that the cost is low and the stability is high.
As shown in fig. 3, the weight device for an electronic piano further includes a resistance elastic member 5, one end of the resistance elastic member 5 is connected to the first connecting member 3, and the other end of the resistance elastic member 5 is connected to the second connecting member 4. When the pressing end of the key is pressed, the first connecting piece 3 drives the resistance elastic piece 5 to stretch, and the resistance elastic piece 5 applies resistance to the first connecting piece 3 for limiting the first connecting piece 3 to rise. The present invention further utilizes the resistance elastic member 5 to provide resistance when the key is depressed, so that the hand feeling of the electronic piano is more similar to that of a conventional piano. The resistance elastic member 5 is specifically a spring.
As shown in fig. 3, one end of the resistance elastic member 5 is detachably connected with the first connecting member 3, and the other end of the resistance elastic member 5 is detachably connected with the second connecting member 4, so that a user can replace the resistance elastic members 5 with different stiffness coefficients to obtain different handfeel. And also facilitates the replacement of the resistance elastic member 5 by a maintenance worker.
Specifically, the one end of the resistance elastic member 5 is provided with a first connecting hook 51, the other end of the resistance elastic member 5 is provided with a second connecting hook 52, the first connecting member 3 is provided with a first hook body 33 penetrating through the first connecting hook 51, the second connecting member 4 is provided with a second hook body 45 penetrating through the second connecting hook 52, and detachable connection between the resistance elastic member 5 and the first connecting member 3 and between the resistance elastic member 5 and the second connecting member 4 is realized through a simple structure.
As shown in fig. 1 and 2, the fixing base 1 includes a first fixing plate 11 and a second fixing plate 12 detachably connected to the first fixing plate 11, and the first fixing plate 11 and the second fixing plate 12 clamp the weight 2, so that a user can open the first fixing plate 11 and the second fixing plate 12 to replace the weight 2 with different weights, thereby obtaining different handfeel. The counterweight 2 is provided with a through hole 21, the first fixing plate 11 is provided with a limiting convex column 13 penetrating through the through hole 21, and the counterweight 2 is further limited through the limiting convex column 13 so as to prevent the counterweight 2 from being separated from the fixing seat 1.
As shown in fig. 1 and 2, the second fixing plate 12 is provided with a plurality of clamping pins 14, the first fixing plate 11 is provided with a clamping groove 15 clamped with the clamping pins 14, and the first fixing plate 11 and the second fixing plate 12 are detachably connected through a simple structure.
As shown in fig. 1 to 3, the first connecting member 3 is provided with a first connecting shaft 32 rotatably connected to the fixing base 1, the second connecting member 4 is provided with a second connecting shaft 44 rotatably connected to the fixing base 1, and the outer circumference of the first connecting shaft 32 abuts against the outer circumference of the second connecting shaft 44, so that the required length of the fixing base 1 is shorter, and the structure of the present invention is more compact.
The present invention is not limited to the preferred embodiments, but is intended to be limited to the following description, and any modifications, equivalent changes and variations in light of the above-described embodiments will be apparent to those skilled in the art without departing from the scope of the present invention.
Claims (10)
1. A weight device for an electronic piano, characterized in that: including fixing base (1), counter weight piece (2), be used for with the key of electronic piano be connected first connecting piece (3) and be used for with the second connecting piece (4) of the body coupling of electronic piano, counter weight piece (2) are connected with the one end of fixing base (1), second connecting piece (4) rotate with the other end of fixing base (1) and are connected, first connecting piece (3) with fixing base (1) rotate and are connected, the junction of first connecting piece (3) and fixing base (1) is located between counter weight piece (2) and second connecting piece (4).
2. The weight device for an electronic piano according to claim 1, wherein: the second connecting piece (4) comprises a connecting arm (41) and a connecting clamp (42), one end of the connecting arm (41) is rotationally connected with the fixing seat (1), the other end of the connecting arm (41) is connected with the connecting clamp (42), and a clamping opening of the connecting clamp (42) faces upwards or downwards.
3. A weight device for an electronic piano according to claim 2, wherein: the connecting clamp (42) is provided with a lug (43) in a protruding way at one end far away from the clamping opening.
4. The weight device for an electronic piano according to claim 1, wherein: the side end of the first connecting piece (3) is provided with a groove (31) for the keys of the electronic piano to extend into.
5. The weight device for an electronic piano according to claim 1, wherein: the weight device for the electronic piano further comprises a resistance elastic piece (5), one end of the resistance elastic piece (5) is connected with the first connecting piece (3), and the other end of the resistance elastic piece (5) is connected with the second connecting piece (4).
6. The weight device for an electronic piano of claim 5, wherein: one end of the resistance elastic piece (5) is detachably connected with the first connecting piece (3), and the other end of the resistance elastic piece (5) is detachably connected with the second connecting piece (4).
7. The weight device for an electronic piano of claim 5, wherein: the one end of resistance elastic piece (5) is equipped with first coupling hook (51), and the other end of resistance elastic piece (5) is equipped with second coupling hook (52), first connecting piece (3) are equipped with first coupler body (33) that pass first coupling hook (51), second connecting piece (4) are equipped with second coupler body (45) that pass second coupling hook (52).
8. The weight device for an electronic piano according to claim 1, wherein: the fixed seat (1) comprises a first fixed plate (11) and a second fixed plate (12) detachably connected with the first fixed plate (11), and the counterweight (2) is clamped by the first fixed plate (11) and the second fixed plate (12);
the counterweight (2) is provided with a through hole (21), and the first fixing plate (11) is provided with a limiting convex column (13) penetrating through the through hole (21).
9. The weight device for an electronic piano of claim 8, wherein: the second fixing plate (12) is provided with a plurality of clamping feet (14), and the first fixing plate (11) is provided with a clamping groove (15) which is clamped with the clamping feet (14).
10. The weight device for an electronic piano according to claim 1, wherein: the first connecting piece (3) is provided with a first connecting shaft (32) rotationally connected with the fixing seat (1), the second connecting piece (4) is provided with a second connecting shaft (44) rotationally connected with the fixing seat (1), and the periphery of the first connecting shaft (32) is abutted to the periphery of the second connecting shaft (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910801721.5A CN110491356B (en) | 2019-08-28 | 2019-08-28 | Counterweight device for electronic piano |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910801721.5A CN110491356B (en) | 2019-08-28 | 2019-08-28 | Counterweight device for electronic piano |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110491356A CN110491356A (en) | 2019-11-22 |
| CN110491356B true CN110491356B (en) | 2024-05-24 |
Family
ID=68554919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910801721.5A Active CN110491356B (en) | 2019-08-28 | 2019-08-28 | Counterweight device for electronic piano |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110491356B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2726061Y (en) * | 2004-09-03 | 2005-09-14 | 得理电子(深圳)有限公司 | Hammer type code piano finger board |
| JP2008241885A (en) * | 2007-03-26 | 2008-10-09 | Yamaha Corp | Keyboard device for electronic musical instrument |
| KR20080004880U (en) * | 2007-04-20 | 2008-10-23 | 김진문 | Structure of Keyboard in Electronic Keyed Instrument |
| JP2009086237A (en) * | 2007-09-28 | 2009-04-23 | Yamaha Corp | Keyboard device |
| CN201369162Y (en) * | 2009-02-10 | 2009-12-23 | 张万春 | Electronic piano keyboard |
| CN205016232U (en) * | 2015-09-24 | 2016-02-03 | 郭伟和 | Improvement formula piano keyboard |
| CN205810362U (en) * | 2016-03-28 | 2016-12-14 | 广州艾茉森电子有限公司 | There is digital piano keyboard structure and the digital piano of disconnected jointly sense |
| CN208460389U (en) * | 2018-07-11 | 2019-02-01 | 惠州市珩兴实业有限公司 | A kind of fender white key key hammer |
| CN211628680U (en) * | 2019-08-28 | 2020-10-02 | 东莞市美派电子科技有限公司 | Counterweight device for electronic piano |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5838568B2 (en) * | 2011-03-02 | 2016-01-06 | ヤマハ株式会社 | Pedal device for electronic percussion instruments |
-
2019
- 2019-08-28 CN CN201910801721.5A patent/CN110491356B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2726061Y (en) * | 2004-09-03 | 2005-09-14 | 得理电子(深圳)有限公司 | Hammer type code piano finger board |
| JP2008241885A (en) * | 2007-03-26 | 2008-10-09 | Yamaha Corp | Keyboard device for electronic musical instrument |
| KR20080004880U (en) * | 2007-04-20 | 2008-10-23 | 김진문 | Structure of Keyboard in Electronic Keyed Instrument |
| JP2009086237A (en) * | 2007-09-28 | 2009-04-23 | Yamaha Corp | Keyboard device |
| CN201369162Y (en) * | 2009-02-10 | 2009-12-23 | 张万春 | Electronic piano keyboard |
| CN205016232U (en) * | 2015-09-24 | 2016-02-03 | 郭伟和 | Improvement formula piano keyboard |
| CN205810362U (en) * | 2016-03-28 | 2016-12-14 | 广州艾茉森电子有限公司 | There is digital piano keyboard structure and the digital piano of disconnected jointly sense |
| CN208460389U (en) * | 2018-07-11 | 2019-02-01 | 惠州市珩兴实业有限公司 | A kind of fender white key key hammer |
| CN211628680U (en) * | 2019-08-28 | 2020-10-02 | 东莞市美派电子科技有限公司 | Counterweight device for electronic piano |
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| Publication number | Publication date |
|---|---|
| CN110491356A (en) | 2019-11-22 |
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Address after: 523000 room 801, building 2, No. 8, Shuilang Industrial Road, Dalingshan Town, Dongguan City, Guangdong Province Applicant after: Dongguan Meipai Electronic Technology Co.,Ltd. Address before: 523000 Guangdong Province, Dongguan City Dalingshan Town Water Lang Village Industrial Zone Applicant before: Dongguan Meipai Electronic Technology Co.,Ltd. |
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