CN105006225A - Guitar chord fingering device - Google Patents
Guitar chord fingering device Download PDFInfo
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- CN105006225A CN105006225A CN201410171217.9A CN201410171217A CN105006225A CN 105006225 A CN105006225 A CN 105006225A CN 201410171217 A CN201410171217 A CN 201410171217A CN 105006225 A CN105006225 A CN 105006225A
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- depression bar
- branch
- chord fingering
- housing
- pivot arm
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Abstract
The invention provides a guitar chord fingering device. The device comprises: a housing; L-shaped key rods provide with keys extending from one side of the housing; pressing rods, the lower ends of which are provided with pressing boards, wherein branch pressing rods are arranged below the pressing boards according to a chord fingering score; rotating arms, one ends of which are rotationally connected to the housing, the other ends of which are rotationally connected to the L-shaped key rods, and the middle parts of which are connected to the pressing rods; and return springs, which enable the branch pressing rods to press strings when the keys are pressed and the rotating arms rotate to press the pressing rods, and enable the rotating arms return when the keys are relieved. The guitar chord fingering device makes a player comfortable and convenient when playing chord.
Description
Technical field
The present invention relates to guitar field of accessories, be specifically related to a kind of guitar chord fingering device.
Background technology
Guitar is worldwide popular musical instrument, when playing, often needs to play chord.But, as shown in Figure 1, guitar chord fingering spectrum is very complicated, and the fingering in chord fingering spectrum is close to 360 kinds from A to G, and what often use also has tens kinds, and in each chord fingering, need the different grades on the different string of different finger presses, and guitar generally has 12 grades or 14 grades, needs to change handle when playing, this gives guitarist, and especially beginner brings very large difficulty.And, frequently press string, finger can be made to feel pain.
Convenient and more comfortable when playing chord for making guitarist, the improvement project that technician takes is both direction substantially.
A direction adopts electric controling mode, such as application number be 201320460099.4, name is called in the Chinese invention patent application of " guitar chord fingering device and install the guitar of this guitar chord fingering device " disclosed, adopt circuit board to control calutron and press down string according to chord fingering motion.This scheme can realize more fingering, but cost is relatively high.
Another direction adopts mechanical type, the application number such as submitted on July 20th, 1991 is that the name of 91220091.X is called in the Chinese utility model patent of " device sung by guitar bullet ", disclose a kind of device, compose according to left hand chord fingering, by button, slide in sleeve pipe press key lever, directed steel wire, brachydactylia key and long digital pressing string, achieve object chord fingering being converted into button.But, in that patent, sleeve pipe needs being connected with it in the radial direction at directed steel wire, this inherently very difficult thing for tiny directed steel wire, and, a long digital needs to push down many strings simultaneously, make overlap joint between these strings define line to connect, in the process that the right hand fingers a stringed instrument, vibration between string is disturbed mutually, add the resonance of directed steel wire, the havoc music effect played, although therefore the program proposes more than two decades, market is sold without this series products substantially.Further, scheme disclosed in this patent adopts the mode of vertical compression to press down by key lever, and finger still needs larger downforce, still can feel pain when the time of playing is longer.As mechanical improvement, at application number: in the Chinese utility model patent of 201220635779.0, the applying date: 2012-11-27, utility model title " a kind of guitar fingering device ", inventor utilizes master control depression bar to stir the mode of secondary pressure control bar to avoid resonance problem.But master control depression bar, secondary pressure control bar have rotating shaft separately in the program, the pressure that finger presses down the button of master control depression bar is by being depressed into string after secondary transmission, due to the easy build-up of pressure loss of the reasons such as friction force in transmission process, add a master control depression bar and there are multiple points of poles, when finger presses down button, still need larger power.And when the corresponding multiple chord of a certain grade of a string, when namely multiple master control depression bar needs to drive a secondary pressure control bar, need mutually to stagger in the horizontal direction for mutually avoiding interfering, this brings difficulty to layout.
Summary of the invention
The object of this invention is to provide a kind of device that the guitar chord fingering of complexity can be converted into button, and structure simple, operate comfortable.
For achieving the above object, The embodiment provides following technical scheme:
A kind of guitar chord fingering device, comprising: housing; L shape key lever, described L shape key lever has the button stretched out from described housing side; Depression bar, described depression bar lower end has pressing plate, below described pressing plate, chord fingering spectrum is provided with branch's depression bar; Pivot arm, described pivot arm one end is connected with described housing into rotation, and the other end and L shape key lever are rotationally connected, and centre is connected with depression bar; Retracing spring; When pressing down described button, described pivot arm rotates thus presses down described depression bar, makes described branch depression bar press down string; When unclamping described button, described retracing spring makes described pivot arm return.
Preferably, be connected by motion changing mechanism between described depression bar with described pivot arm, thus be the rectilinear motion of described depression bar by the convert rotational motion of described pivot arm.
Preferably, above-mentioned guitar chord fingering device also comprises fagging, and described fagging is provided with guide thimble, and described depression bar or described branch depression bar and described guide thimble are slidably matched.
Preferably, in the position of the multiple chord of correspondence, have partition wall in described guide thimble, described guide thimble is divided into multiple chamber by described partition wall, described multiple chamber respectively with multiple depression bar to should branch's depression bar of position be slidably matched.
Preferably, described fagging is fixed with hold-down devices, in the position of the multiple chord of correspondence, multiple described branches depression bar presses down string by same described hold-down devices.
Preferably, described hold-down devices comprises press rods, spring cup and spring storehouse, stage clip is provided with in described spring storehouse, described press rods has flange, described spring storehouse is fixed on described fagging, the flange of described press rods is pressed in be closed described spring storehouse with described spring cup after on described stage clip and the two ends of described press rods is stretched out from described spring storehouse, and the upper end of described press rods has pressure cover.
Preferably, the surface that described pressure cover and described branch depression bar contact with each other has pit.
Preferably, on described housing, the position be positioned at below described button has finger bracket.
Preferably, described housing is can opening and closing housing, and described retracing spring is arranged between described housing and described pivot arm.
The present invention adopts the key lever of L shape to connect pivot arm, and depression bar is connected between the housing tie point of pivot arm and L shape key lever tie point, this can utilize lever principle when first making to press down button, points to press down button with less power and just can obtain larger string downforce, operates more comfortable; Secondly, pressing plate is adopted can to solve resonance problem well; Again, the key lever of L shape makes the pressing plate corresponding with each chord, branch's depression bar on vertical direction, to have enough spaces mutually to dodge, keeps again button to be in the side lower position of housing simultaneously, can not affect operation convenience.
Further, adopt motion changing mechanism to be the rectilinear motion of the vertical direction of depression bar by the convert rotational motion of pivot arm, can avoid producing transverse movement and causing pressure string to be forbidden pressing down branch's depression bar in process.
Further, guide thimble can ensure that branch's depression bar presses down the positional accuracy of string.
Further, in the position of the multiple chord of correspondence, adopt the guide thimble with multiple chamber to provide guiding for multiple branches depression bar, the accuracy pressing down chord position can not only be improved, and can avoid producing collision between different depression bars, branch's depression bar or interfering.
Further, in the position of the multiple chord of correspondence, multiple branches depression bar presses down string by same hold-down devices, makes when playing different chord but needing to press down string at same position, lower pressure point is same, ensures can not run sound when playing different chords.
Further, the hold-down devices that embodiments of the invention adopt, not only structure is simple, and spring storehouse itself also can dampening resonances.
Further, the pit on the surface that contacts with each other of pressure cover and branch's depression bar can be avoided relative sliding occurs between the two causing and pressing string unstable pressing down in process.
Further, the finger bracket below button can improve comfortableness when gripping whole guitar chord fingering device.
Further, the opening and closing of box body and the installation site of retracing spring improve the maintenance convenience of device.
Accompanying drawing explanation
Next will be described in further detail specific embodiments of the invention by reference to the accompanying drawings, wherein:
Fig. 1 is part guitar chord fingering spectrum;
Fig. 2 is the stereographic map of the guitar chord fingering device of first embodiment of the present invention;
Fig. 3 is the vertical view of the guitar chord fingering device of first embodiment of the present invention;
Fig. 4 is the front view of the guitar chord fingering device of second embodiment of the present invention;
Fig. 5 is the front view of the guitar chord fingering device of the 3rd embodiment of the present invention;
Fig. 6 is the front view of the guitar chord fingering device of the 4th embodiment of the present invention;
Fig. 7 be guide thimble in Fig. 5 structural representation;
Fig. 8 is the viewgraph of cross-section of the guide thimble in Fig. 6;
Fig. 9 be branch's depression bar and the guide thimble of the 4th embodiment of the present invention coordinate schematic diagram;
Figure 10 is the stereographic map of the press rods of the 4th embodiment of the present invention;
Figure 11 is the operating diagram of the hold-down devices of the 4th embodiment of the present invention;
Figure 12 is the course of work front view of hold-down devices in Figure 10;
Figure 13 is the explosive view of the hold-down devices of the 4th embodiment of the present invention.
Description of symbols in upper figure: guitar chord fingering device 100, first column 101, second column 102, rotating shaft 103, first rotating arm 104, second pivot arm 105, first depression bar 106, second depression bar 107, first key lever 108, second key lever 109, first button 110, second button 111, first pressing plate 112, second pressing plate 113, first branch's depression bar 114, second branch's depression bar 115, first retracing spring 116, second retracing spring 117, finger bracket 118, guide thimble 119, fagging 120, 3rd retracing spring 121, cam 122, upper shell 123, hold-down devices 124, partition wall 125, branch's depression bar 126, press rods 127, pressure cover 128, spring cup 129, spring storehouse 130, stage clip 131, pit 132, flange 133, lower house 134, guitar 200, neck 201, capo 202, string 203.
Embodiment
Composition graphs 2, Fig. 3, in order to clearly show the inner structure of guitar chord fingering device 100, omit housing.On the first column 102 and the second column 102, rotating shaft 103 is installed.First rotating arm 104 one end and rotating shaft 103 are rotationally connected, and the first key lever 108 of the other end and L shape is rotationally connected, and centre position is between the ends connected with the first depression bar 106.More specifically, in the present embodiment, first rotating arm 104 and the first depression bar 106 are also rotationally connected.The other end relative with first rotating arm 104 link of the first key lever 108, there is the first button 110, and it is more high-visible from Fig. 6, first button 110 stretches out from housing side, visible in Fig. 3, Fig. 6, column 101,102 and rotating shaft 103 all can be regarded as a part for upper shell 123.Those of ordinary skill in the art can imagine, first rotating arm 104, second pivot arm 105 directly can also be connected with housing by modes such as hinges, and not by means of column 101,102.There is in the first depression bar 106 lower end the first pressing plate 112, first pressing plate 112 and be provided with multiple branches depression bar 114.The first retracing spring 116 is provided with between the first column 101 and first rotating arm 104.Similarly, second pivot arm 105 one end and rotating shaft 103 are rotationally connected, and the second key lever 109 of the other end and L shape is rotationally connected, and centre position is between the ends connected with the second depression bar 107.More specifically, in the present embodiment, the second pivot arm 105 and the second depression bar 107 are also rotationally connected.The other end relative with the second pivot arm 105 link of the second key lever 109, have the second button 111, and the second button 111 also stretches out from housing side.There is in the second depression bar 107 lower end the second pressing plate 113, second pressing plate 113 and be provided with multiple branches depression bar 115.The second retracing spring 117 is provided with between the second column 102 and the second pivot arm 105.Unlike, the string 203 that first branch's depression bar 114 and second branch's depression bar 115 press down is also incomplete same, this is because the first button 110, different chords in the corresponding chord fingering spectrum of second button 111 difference, correspondingly, the number of first branch's depression bar 114 and second branch's depression bar 115 and position also will be arranged according to chord fingering spectrum, like this, when pressing down the first button 110, first rotating arm 104 103 rotates thus presses down the first depression bar 106 around the shaft, make first branch's depression bar 114 press down string 203 and realize a kind of chord fingering, and when pressing down the second button 111, second pivot arm 105 103 rotates thus presses down the second depression bar 107 around the shaft, make second branch's depression bar 115 press down string 203 and realize another kind of chord fingering.Only achieve two chord fingering in embodiment shown in figs. 2 and 3, those skilled in the art can carry out expansion easily as required and realize multiple chord fingering.When unclamping the first button 110, the second button 111, the first retracing spring 116 and the second retracing spring 117 order about first rotating arm 104 and the second pivot arm 105 return respectively.Visible, in the present embodiment, due to the leverage of first rotating arm 104, second pivot arm 105, first button 110, second button 111 applies less power, first branch's depression bar 114, second branch's depression bar, 115 pairs of strings 203 just can be made to produce larger downforce, make player more comfortable.Further, because the first key lever 108 and the second key lever 109 are all L shapes, on the one hand make the first button 110 and the second button 111 be positioned at the side of whole guitar chord fingering device 100, compared with direct press type button to be more convenient for operation; On the other hand, this in the vertical direction leaves larger space, and when making to need as shown in Figure 6 to realize multiple chord fingering, each pressing plate 112,113 etc. can be staggeredly arranged, and avoids interfering.Composition graphs 6 is visible, on lower house 134, is positioned at the position below the first button 110 and the second button 111, have finger bracket 118, finger bracket 118 has the radian of fovea superior, meets ergonomic designs, such player, when gripping guitar chord fingering device 100, can feel more comfortable.
With reference to figure 4, in order to clear, this figure omits section components.Compare with first embodiment illustrated in fig. 3 with Fig. 2, in a second embodiment of the present invention, also add fagging 120, fagging 120 is fixedly connected with the first column 101, second column 102 or is directly fixedly connected with upper shell 123.On fagging 120, be fixedly installed guide thimble 119, the first depression bar 106 is slidably matched with guide thimble 119.In the process pressing down the first button 110, first depression bar 106 is except the componental movement had straight down, also there is horizontal componental movement, by the effect of guide thimble 119, the motion that the first depression bar 106 can be made to press down first branch's depression bar 114 keeps within the specific limits, guarantees that first branch's depression bar 114 can be pressed onto on string 203.3rd retracing spring 121 is also installed in guide thimble 119, drives on the first depression bar 106 and lift, and then drive first rotating arm 104 return.First retracing spring 116 and the 3rd retracing spring 121 can either adopt simultaneously, also can adopt respectively.
With reference to figure 5, similarly in order to clear, this figure omits section components.As seen from Figure 5, in the 3rd embodiment of the present invention, motion on vertical direction is only done in order to make the first depression bar 106, the position that first rotating arm 104 presses down the first depression bar 106 has processed cam face 122, like this when pressing down the first button 110, first rotating arm 104 rotates, but the first depression bar 106 only does vertical direction motion in guide thimble 119, thus ensure that first branch's depression bar 114 is accurately pressed onto on string 203, until press down end first branch depression bar can not produce slip in horizontal direction from first branch's depression bar 114 contacts string 203, guarantee that pressure string is accurate.Those of ordinary skill in the art can imagine, can also be connected by other motion changing mechanism such as connecting rod slider, crank connecting link between first rotating arm 104 with the first depression bar 106, thus be the rectilinear motion of the first depression bar 106 by the convert rotational motion of first rotating arm 104.
With reference to figure 6, in the 4th embodiment of the present invention, whole housing comprises upper shell 123 and lower house 134, and wherein lower house 134 is fixed with neck 201, and upper shell 123 can overturn and opens, and exposes the inner structure of guitar chord fingering device 100.In this embodiment, adopt the first retracing spring 116 to have advantage, open upper shell 123 like this and just can carry out maintain and replace to the first retracing spring 116.In the embodiment show in figure 6, guide thimble 119 is slidably matched with first branch's depression bar 114, and be fixed with hold-down devices 124 on fagging 120.
In some cases, a grade position between the capo 202 of a string 203 needs corresponding multiple chord, such as in FIG shown in all need the 3rd grade position pressing down the 5th string when playing Cm, Cm11, Cm7 chord, so just need the 3rd grade position that multiple branches depression bar corresponding can press down the 5th string, sometimes need to reach the same grade that five branch's depression bars press down same string, this results in pressure string difficulty.As shown in Figure 7, have partition wall 125 in the guide thimble 119 in the present embodiment, thus guide thimble is divided into five chambers as shown in Figure 8, each chamber is slidably matched with branch's depression bar of a depression bar respectively.Certainly, the number of chamber determines according to corresponding how many chord fingering of the string 203 of guide thimble 119 position, such as the guide thimble 119 of the position of the 3rd grade of corresponding 5th string is separated out three chambers by partition wall 125 in fig .9, each chamber is slidably matched (in order to clear, only illustrating one in Fig. 9) with the branch's depression bar 126 pressing down the position of the 3rd grade of the 5th string of the depression bar of corresponding Cm, Cm11, Cm7 chord fingering respectively.Like this, these branch's depression bars 126 just restrained same guide thimble 119 retrain, and avoid mutually interfering and are convenient to arrange.Simultaneously, in the position of the 3rd grade of corresponding 5th string, these branch's depression bars 126 press down string 203 by same hold-down devices 124, which ensure that when playing different chord, for each grade position of every root string 203, all only have a hold-down devices 124 to press string, ensure that the accuracy of tone, avoid the 3rd grade diverse location that branch's depression bar 126 when playing different chord is pressed in the 5th string and cause race sound.
With reference to Figure 10, which particularly illustrate the press rods 127 and pressure cover 128 that adopt in hold-down devices 124.Five positions shown on pressure cover 128 are corresponding with the chamber of five in Fig. 8 respectively, and namely different branch's depression bars 126 can be pressed onto the diverse location of pressure cover 128.When adopting simple press rods 127 and pressure cover 128 as hold-down devices 124, press rods 127 can produce stressed unstable problem, upset easily occurs and then causes skidding on string 203.For head it off, the hold-down devices 124 in the present embodiment have employed structure as shown in Figure 11 to Figure 13.
From Figure 11 to Figure 13, hold-down devices 124 comprises press rods 127, spring cup 129 and spring storehouse 130.Stage clip 131 is provided with in spring storehouse 130.Press rods 127 has flange 133.Spring storehouse 130 is fixed on fagging 120.According to erection sequence as shown in fig. 13 that, first press rods 127 is loaded spring storehouse 130, the flange 133 of press rods 127 is pressed in after on stage clip 131, from upper end mounting spring lid 129 thus close spring storehouse 130, and the two ends up and down of press rods 127 all keep stretching out from spring storehouse 130, finally again at the upper end setting pressure lid 128 of press rods 127.After having assembled, downforce is passed to pressure cover 128, press rods 127 by branch's depression bar 126, finally presses down string 203, and stage clip 131 is compressed simultaneously, and when branch's depression bar 126 rises, stage clip 131 recovers.Like this, even if the point of application of different branch's depression bar 126 pairs of pressure covers 128 is different, spring storehouse 130 and spring cup 129 can ensure that press rods 127 still can keep in the vertical direction move and can not overturn, and ensure that pressure string is accurate.In addition, spring storehouse 130 itself is as an accumulation of energy part, and the vibration of string can be stoped upwards to transmit affects other branch's depression bar pressing down other string.
More high-visible by Figure 12, the surface that pressure cover 128 and branch's depression bar 126 contact with each other has pit 132, avoids branch's depression bar 126 to press down in process and skids.
Although the present invention is described in conjunction with above embodiment, the present invention is not defined to above-described embodiment, and those of ordinary skill in the art easily can carry out equivalence to it and replace and modification, but do not leave the protection domain of claim of the present invention.
Claims (9)
1. a guitar chord fingering device, is characterized in that, comprising:
Housing;
L shape key lever, described L shape key lever has the button stretched out from described housing side;
Depression bar, described depression bar lower end has pressing plate, below described pressing plate, chord fingering spectrum is provided with branch's depression bar;
Pivot arm, described pivot arm one end is connected with described housing into rotation, and the other end and L shape key lever are rotationally connected, and centre is connected with depression bar;
Retracing spring;
When pressing down described button, described pivot arm rotates thus presses down described depression bar, makes described branch depression bar press down string; When unclamping described button, described retracing spring makes described pivot arm return.
2. guitar chord fingering device according to claim 1, be is characterized in that, be connected between described depression bar with described pivot arm by motion changing mechanism, thus is the rectilinear motion of described depression bar by the convert rotational motion of described pivot arm.
3. guitar chord fingering device according to claim 1, is characterized in that, also comprise fagging, described fagging is provided with guide thimble, and described depression bar or described branch depression bar and described guide thimble are slidably matched.
4. guitar chord fingering device according to claim 3, it is characterized in that, in the position of the multiple chord of correspondence, in described guide thimble, there is partition wall, described guide thimble is divided into multiple chamber by described partition wall, described multiple chamber respectively with multiple depression bar to should branch's depression bar of position be slidably matched.
5. guitar chord fingering device according to claim 4, is characterized in that, described fagging is fixed with hold-down devices, and in the position of the multiple chord of correspondence, multiple described branches depression bar presses down string by same described hold-down devices.
6. guitar chord fingering device according to claim 5, it is characterized in that, described hold-down devices comprises press rods, spring cup and spring storehouse, stage clip is provided with in described spring storehouse, described press rods has flange, described spring storehouse is fixed on described fagging, and the flange of described press rods is pressed in be closed described spring storehouse with described spring cup after on described stage clip and the two ends of described press rods are stretched out from described spring storehouse, and the upper end of described press rods has pressure cover.
7. guitar chord fingering device according to claim 6, is characterized in that, the surface that described pressure cover and described branch depression bar contact with each other has pit.
8. guitar chord fingering device according to claim 1, it is characterized in that, on described housing, the position be positioned at below described button has finger bracket.
9. guitar chord fingering device according to claim 1, is characterized in that, described housing is can opening and closing housing, and described retracing spring is arranged between described housing and described pivot arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171217.9A CN105006225B (en) | 2014-04-25 | 2014-04-25 | A kind of guitar chord fingering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410171217.9A CN105006225B (en) | 2014-04-25 | 2014-04-25 | A kind of guitar chord fingering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105006225A true CN105006225A (en) | 2015-10-28 |
| CN105006225B CN105006225B (en) | 2018-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410171217.9A Expired - Fee Related CN105006225B (en) | 2014-04-25 | 2014-04-25 | A kind of guitar chord fingering device |
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| CN (1) | CN105006225B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107538500A (en) * | 2017-08-23 | 2018-01-05 | 南通理工学院 | Bass playing robot |
| CN107767730A (en) * | 2017-11-17 | 2018-03-06 | 温州大学瓯江学院 | A kind of more fingering Zither playing devices for playing smoothness |
| CN108538272A (en) * | 2018-06-14 | 2018-09-14 | 徐正奇 | Guitar plays auxiliary and stops device |
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| CN2119702U (en) * | 1991-07-20 | 1992-10-21 | 周有嵩 | Apparatus for playing guitar |
| CN1310436A (en) * | 2000-02-25 | 2001-08-29 | 梅兼毓 | Plucked string instrument and its string clamp |
| CN203799630U (en) * | 2014-04-25 | 2014-08-27 | 周建峰 | Guitar chord fingering device |
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| GB1514778A (en) * | 1974-08-30 | 1978-06-21 | Castillo J Del | Apparatus for use when playing a stringed instrument |
| US4363256A (en) * | 1978-11-15 | 1982-12-14 | Smith Robert L | Easy fret |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107538500A (en) * | 2017-08-23 | 2018-01-05 | 南通理工学院 | Bass playing robot |
| CN107767730A (en) * | 2017-11-17 | 2018-03-06 | 温州大学瓯江学院 | A kind of more fingering Zither playing devices for playing smoothness |
| CN107767730B (en) * | 2017-11-17 | 2021-07-02 | 温州大学瓯江学院 | Multi-fingering-method Chinese zither playing device capable of playing smoothly |
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| CN108538272B (en) * | 2018-06-14 | 2023-08-15 | 徐正奇 | Guitar playing auxiliary string pressing device |
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| CN105006225B (en) | 2018-09-25 |
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