CN103606368B - A kind of bracing means of piano pressure key shelves - Google Patents
A kind of bracing means of piano pressure key shelves Download PDFInfo
- Publication number
- CN103606368B CN103606368B CN201310529429.5A CN201310529429A CN103606368B CN 103606368 B CN103606368 B CN 103606368B CN 201310529429 A CN201310529429 A CN 201310529429A CN 103606368 B CN103606368 B CN 103606368B
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- pressure key
- key shelves
- piano
- bracing means
- side plate
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Abstract
The invention discloses the bracing means of a kind of piano pressure key shelves, this bracing means is arranged between bass group key on rear side of piano pressure key shelves and alt group key, comprise corner brace and connecting link, wherein, described corner brace is formed by connecting by base plate and side plate, wherein, described side plate is fixedly connected with pressure key shelves; The upper end of described connecting link is fixedly connected with base plate, and lower end is fixedly connected with wood in the keyframe of piano.Utilize bracing means of the present invention not only can reinforce pressure key shelves, prevent it to be out of shape, also can reduce the request for utilization to material simultaneously, reduce manufacturing cost.
Description
Technical field
The present invention relates to the bracing means of piano parts, be specifically related to the bracing means of a kind of piano pressure key shelves.
Background technology
See Fig. 3 and Fig. 4, piano pressure key shelves 1 are straight-bars being across above fingerboard, and its two ends are fixedly connected with piano side arm.These pressure key shelves 1 are positioned at the visible part of keyboard and the intersection of hidden parts, Main Function is to carry out spacing to the key on keyboard, distance between its lower surface and white key 2 and the distance between front surface and black key 3 end all must meet the requirements, otherwise impact the proper motion of key.Because pressure key shelves 1 are longer, and only have two ends to fix, therefore easily produce distortion, thus do not meet request for utilization, in order to solve this problem, usually adopt in prior art that rigidity is better and on-deformable timber makes this pressure key shelves 1, such as dragon spruce, but the price of these timber is higher; Nonetheless, in use still can there is certain distortion in pressure key shelves 1, thus affect the use of piano.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide the bracing means of a kind of piano pressure key shelves, utilize this bracing means not only can reinforce pressure key shelves, prevent it to be out of shape, also can correct the pressure key shelves of distortion simultaneously, the request for utilization to material can be reduced, reduce manufacturing cost.
The present invention realizes above-mentioned purpose technical scheme:
A kind of bracing means of piano pressure key shelves, it is characterized in that, this bracing means is arranged between bass group key on rear side of piano pressure key shelves and alt group key, comprise corner brace and connecting link, wherein, described corner brace is formed by connecting by base plate and side plate, and wherein, described side plate is fixedly connected with pressure key shelves; The upper end of described connecting link is fixedly connected with base plate, and lower end is fixedly connected with wood in the keyframe of piano.
A preferred version of the present invention, wherein, the rear side of described pressure key shelves has perpendicular; Side plate in described corner brace upwards extends relative to base plate, and the angle between this side plate and base plate is 90 °, and this side plate is adjacent on the described perpendicular of pressure key shelves.
A preferred version of the present invention, wherein, the rear side of described pressure key shelves has dip plane; Side plate in described corner brace is relative to bottom plate inclined to downward-extension, and this side plate is parallel with the dip plane of described pressure key shelves and be mutually adjacent to.
A preferred version of the present invention, wherein, the side plate in described corner brace is provided with connecting hole, is connected between this side plate with pressure key shelves by this connecting hole and screw.
A preferred version of the present invention, wherein, described connecting link is screw rod, and the upper and lower of this screw rod is equipped with screw thread; Wherein, the top of described connecting link, through the base plate of corner brace, which is provided with the nut for fixed base plate that two are positioned at base plate both sides; The bottom of described connecting link extend in keyframe and is fixedly connected with it in wood.
A preferred version of the present invention, wherein, described base plate is provided with the elongated hole of the length direction extension along pressure key shelves, and the top of described connecting link is passed from this elongated hole.Further, described elongated hole is two or more, and be arranged in parallel.
A preferred version of the present invention, wherein, the nut being positioned at the upside of base plate is wing nut, and the nut being positioned at the downside of base plate is hexagonal nut.
A preferred version of the present invention, wherein, connecting described side plate with the screw of pressure key shelves is self-tapping screw.
A preferred version of the present invention, wherein, described side plate is provided with two connecting holes, is connected between this side plate with pressure key shelves by two screws.
The present invention compared with prior art has following beneficial effect:
1, the present invention is in conjunction with the design feature of keyframe in piano, (top of piano keyframe is compact arranged key in the gap being arranged at by described bracing means between bass group key on rear side of piano pressure key shelves and alt group key dexterously, have only between bass group key and alt group key and there is certain gap, its objective is the reinforcement allowing piano striking machine and keyboard avoid on piano iron plate, this gap is close to the middle part of pressure key shelves), this bracing means is utilized to reinforce pressure key shelves, when being used on the strained piano of pressure key shelves, can correct pressure key shelves, when being used in the undeformed piano of pressure key shelves, can reinforce pressure key shelves, prevent it to be out of shape.
2, owing to being provided with bracing means of the present invention, rigidity is less, the timber of cheaper is made therefore to press key shelves to select, thus saves cost; And, the pressure key shelves that the timber of selecting rigidity little makes are easier to be connected with side plate when orthopedic, and (the excessive pressure key shelves of rigidity are when having the trend of distortion, larger push-pull effort may be produced to bracing means, thus likely impel bracing means to deform, thus be unfavorable for reinforcing).
Accompanying drawing explanation
Fig. 1 and Fig. 2 is the structural representation of the embodiment 1 of the bracing means of piano of the present invention pressure key shelves, and wherein, Fig. 1 is front view, and Fig. 2 is vertical view.
Fig. 3 and Fig. 4 is Fig. 1 and using state figure embodiment illustrated in fig. 2, and wherein, Fig. 3 is front view, and Fig. 4 is vertical view.
Fig. 5 and Fig. 6 is the structural representation of the embodiment 2 of the bracing means of piano of the present invention pressure key shelves, and wherein, Fig. 5 is front view, and Fig. 6 is vertical view (reducing certain proportion relative to Fig. 5).
Fig. 7 is Fig. 5 and using state figure embodiment illustrated in fig. 6.
In figure, Reference numeral is: 1 pressure key shelves; 2 white keys; 3 black keys; Wood in 4 keyframves; 5 keys; 6 corner braces; 6-1 base plate; 6-2 side plate; 6-3 elongated hole; 6-4 connecting hole; 7 connecting links; 8 hexagonal nuts; 9 screws; 10 wing nuts; 11 pads; 12 gaps.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
See Fig. 3 and Fig. 4, the bracing means of the piano of the present embodiment pressure key shelves is arranged between bass group key on rear side of piano pressure key shelves 1 and alt group key.In the keyframe of piano, top is compact arranged key 5, only has between described bass group key and alt group key and has certain gap 12, its object is to convey the reinforcement that piano striking machine and keyboard are avoided on piano iron plate; The below of keyframe is connected with a web beam, is called middle wooden 4, and bracing means of the present invention is that the said structure feature occuping piano carries out designing.
See Fig. 1 ~ Fig. 4, described stationary installation comprises corner brace 6 and connecting link 7, and wherein, described corner brace 6 is formed by connecting by base plate 6-1 and side plate 6-2, and wherein, described side plate 6-2 is fixedly connected with pressure key shelves 1; The upper end of described connecting link 7 is fixedly connected with base plate 6-1, and lower end is fixedly connected with wood 4 in the keyframe of piano.
See Fig. 3 and Fig. 4, pressure key shelves 1 in the present embodiment are pressure key shelves 1 conventional in existing piano, its bottom surface is the surface level parallel with white key 2 upper surface, rear side is made up of two mutual clinoplanes in 90 °, be respectively top incline and bottom incline, front side is the surface parallel with bottom incline, and in 90 ° mutually with top incline; These pressure key shelves 1 are adding man-hour, and by being cut off in the middle of rectangular rod member to be formed at an xsect, this section is the bottom surface of pressure key shelves 1.This pressure key shelves 1 have processing quick, by the few advantage of material.
See Fig. 1 ~ Fig. 4, the side plate 6-2 in described corner brace 6 extends obliquely relative to base plate 6-1, and this side plate 6-2 is parallel with the bottom incline of the rear side of described pressure key shelves 1 and be mutually adjacent to.Angle between base plate 6-1 in corner brace 6 and side plate 6-2 sets according to the angle of inclination of the bottom incline of the rear side of pressure key shelves 1, is generally 48 ° ~ 92 °.Side plate 6-2 in described corner brace 6 is provided with two connecting hole 6-4, and be connected by these two connecting hole 6-4 and two screws 9 between this side plate 6-2 with pressure key shelves 1, this screw 9 is self-tapping screw.
See Fig. 1 ~ Fig. 4, described connecting link 7 is screw rod, and the upper and lower of this screw rod is equipped with screw thread, and its middle and lower part is tapping screw thread, and the top of this screw rod is provided with yi word pattern groove, so that rotate this screw rod.The base plate 6-1 of described corner brace 6 is provided with two elongated hole 6-3 extended along the length direction of pressure key shelves 1, and these two elongated hole 6-3 be arranged in parallel; The top of described connecting link 7 is passed from this elongated hole 6-3, which is provided with the nut for fixed base plate 6-1 that two are positioned at base plate 6-1 both sides, being positioned on the upside of base plate 6-1 is wing nut 10, and what be positioned at downside is hexagonal nut 8, is also provided with pad 11 between this hexagonal nut 8 and base plate 6-1.The lower end of described connecting link 7 is to downward-extension and to extend in keyframe in wood 4 and be fixedly connected with it.The object that base plate 6-1 arranges two elongated hole 6-3 is, is convenient to the position adjusting connecting link 7 flexibly, to select better tie point to be connected with middle wooden 4, makes connection more firm.
The installation process of the bracing means of the present embodiment is: the desired location first the side plate 6-2 of corner brace 6 being connected to pressure key shelves 1, then connecting link 7 is passed the elongated hole 6-3 on base plate 6-1, and load onto pad 11 and hexagonal nut 8, then the bottom of bar connecting link 7 is shot in middle wooden 4, finally load wing nut 10, and tighten this wing nut 10 and hexagonal nut 8 connecting link 7 is fixed with base plate 6-1, complete installation.
Embodiment 2
See Fig. 5 ~ Fig. 7, the difference of the present embodiment and embodiment 1 is, in the present embodiment, the rear side of described pressure key shelves 1 has perpendicular, and top has surface level, and both angles are 90 °.Correspondingly, the side plate 6-2 in described corner brace 6 upwards extends relative to base plate 6-1, and the angle between this side plate 6-2 and base plate 6-1 is 90 °, and this side plate 6-2 is adjacent on the perpendicular of pressure key shelves 1.Adopt the benefit of this structure to be, be convenient to shooting of screw 9 when connecting lateral plate 6-2 and pressure key shelves 1, make the easier for installation of bracing means.Further, after all pianos all adopting this pressure key shelves 1, a kind of specification made by described corner brace 6 need, makes the production of corner brace 6 and uses all more easy.
Above-mentioned is the present invention's preferably embodiment; but embodiments of the present invention are not by the restriction of foregoing; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. the bracing means of piano pressure key shelves, it is characterized in that, this bracing means is arranged between bass group key on rear side of piano pressure key shelves and alt group key, comprise corner brace and connecting link, wherein, described corner brace is formed by connecting by base plate and side plate, and wherein, described side plate is fixedly connected with pressure key shelves; The upper end of described connecting link is fixedly connected with base plate, and lower end is fixedly connected with wood in the keyframe of piano.
2. the bracing means of piano pressure key shelves according to claim 1, it is characterized in that, the rear side of described pressure key shelves has perpendicular; Side plate in described corner brace upwards extends relative to base plate, and the angle between this side plate and base plate is 90 °, and this side plate is adjacent on the described perpendicular of pressure key shelves.
3. the bracing means of piano pressure key shelves according to claim 1, it is characterized in that, the rear side of described pressure key shelves has dip plane; Side plate in described corner brace is relative to bottom plate inclined to downward-extension, and this side plate is parallel with the dip plane of described pressure key shelves and be mutually adjacent to.
4. the bracing means of the piano pressure key shelves according to any one of claims 1 to 3, it is characterized in that, the side plate in described corner brace is provided with connecting hole, is connected between this side plate with pressure key shelves by this connecting hole and screw.
5. the bracing means of piano pressure key shelves according to claim 4, it is characterized in that, described connecting link is screw rod, and the upper and lower of this screw rod is equipped with screw thread; Wherein, the top of described connecting link, through the base plate of corner brace, which is provided with the nut for fixed base plate that two are positioned at base plate both sides; The bottom of described connecting link extend in keyframe and is fixedly connected with it in wood.
6. the bracing means of piano pressure key shelves according to claim 5, it is characterized in that, described base plate is provided with the elongated hole of the length direction extension along pressure key shelves, and the top of described connecting link is passed from this elongated hole.
7. the bracing means of piano pressure key shelves according to claim 6, it is characterized in that, described elongated hole is two or more, and be arranged in parallel.
8. the bracing means of piano pressure key shelves according to claim 5, it is characterized in that, the nut being positioned at the upside of base plate is wing nut, and the nut being positioned at the downside of base plate is hexagonal nut.
9. the bracing means of piano pressure key shelves according to claim 4, is characterized in that, connecting described side plate with the screw of pressure key shelves is self-tapping screw.
10. the bracing means of piano pressure key shelves according to claim 9, it is characterized in that, described side plate is provided with two connecting holes, is connected between this side plate with pressure key shelves by two screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310529429.5A CN103606368B (en) | 2013-10-31 | 2013-10-31 | A kind of bracing means of piano pressure key shelves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310529429.5A CN103606368B (en) | 2013-10-31 | 2013-10-31 | A kind of bracing means of piano pressure key shelves |
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| Publication Number | Publication Date |
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| CN103606368A CN103606368A (en) | 2014-02-26 |
| CN103606368B true CN103606368B (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310529429.5A Active CN103606368B (en) | 2013-10-31 | 2013-10-31 | A kind of bracing means of piano pressure key shelves |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036337B (en) * | 2018-09-17 | 2023-01-31 | 郑州幼儿师范高等专科学校 | Reinforcing device for piano key pressing stopper |
Citations (7)
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| JP2929994B2 (en) * | 1996-03-12 | 1999-08-03 | ヤマハ株式会社 | Keyboard device for musical instruments |
| JP3558262B2 (en) * | 1998-10-23 | 2004-08-25 | 株式会社河合楽器製作所 | Method of preventing deformation of keyboard instrument and mouthpiece of keyboard instrument |
| CN101093664A (en) * | 2007-04-06 | 2007-12-26 | 东莞冠宏电子有限公司 | Key set of electronic piano |
| CN101515449A (en) * | 2003-09-12 | 2009-08-26 | 雅马哈株式会社 | Key structure and keyboard apparatus |
| CN202025525U (en) * | 2011-04-27 | 2011-11-02 | 尹忠智 | Digital piano keyboard |
| CN103035224A (en) * | 2011-09-28 | 2013-04-10 | 株式会社河合乐器制作所 | Keyboard device for electronic keyboard instrument and mounting structure of let-off imparting member for electronic keyboard instrument |
| CN203552668U (en) * | 2013-10-31 | 2014-04-16 | 北京珠江钢琴制造有限公司 | Reinforcing device for press key baffle of piano |
-
2013
- 2013-10-31 CN CN201310529429.5A patent/CN103606368B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2929994B2 (en) * | 1996-03-12 | 1999-08-03 | ヤマハ株式会社 | Keyboard device for musical instruments |
| JP3558262B2 (en) * | 1998-10-23 | 2004-08-25 | 株式会社河合楽器製作所 | Method of preventing deformation of keyboard instrument and mouthpiece of keyboard instrument |
| CN101515449A (en) * | 2003-09-12 | 2009-08-26 | 雅马哈株式会社 | Key structure and keyboard apparatus |
| CN101093664A (en) * | 2007-04-06 | 2007-12-26 | 东莞冠宏电子有限公司 | Key set of electronic piano |
| CN202025525U (en) * | 2011-04-27 | 2011-11-02 | 尹忠智 | Digital piano keyboard |
| CN103035224A (en) * | 2011-09-28 | 2013-04-10 | 株式会社河合乐器制作所 | Keyboard device for electronic keyboard instrument and mounting structure of let-off imparting member for electronic keyboard instrument |
| CN203552668U (en) * | 2013-10-31 | 2014-04-16 | 北京珠江钢琴制造有限公司 | Reinforcing device for press key baffle of piano |
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| CN103606368A (en) | 2014-02-26 |
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Chaoyan Inventor after: Zhang Hongchao Inventor after: Huang Genong Inventor after: Liang Zhihe Inventor before: Ye Hanqiang Inventor before: Zhang Hongchao Inventor before: Huang Genong Inventor before: Liang Zhihe |
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Free format text: CORRECT: INVENTOR; FROM: YE HANQIANG ZHANG HONGCHAO HUANG GENONG LIANG ZHIHE TO: ZHANG CHAOYAN ZHANG HONGCHAO HUANG GENONG LIANG ZHIHE |
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