CN207572052U - A kind of grand piano - Google Patents
A kind of grand piano Download PDFInfo
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- CN207572052U CN207572052U CN201721535083.XU CN201721535083U CN207572052U CN 207572052 U CN207572052 U CN 207572052U CN 201721535083 U CN201721535083 U CN 201721535083U CN 207572052 U CN207572052 U CN 207572052U
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- disk
- threaded rod
- soundboard
- backrest
- thread
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Abstract
The utility model is related to a kind of grand pianos, and including backrest, the backrest includes backrest frame, dorsal column and soundboard, and the dorsal column and the soundboard are fixed on the backrest frame, and the dorsal column supports the soundboard；The soundboard is equipped with disk, and the disk is equipped with several adjusting rods, and the one end of the adjusting rod far from the disk is connect with the backrest frame.By the way that disk is fixed on soundboard, more adjusting rods can be evenly arranged on the disk, and the other end of adjusting rod is then connect with backrest frame；A usually more adjusting rods are preferably designed for the six roots of sensation or eight.Since the supporting point of adjusting rod is distributed in a plurality of directions, the backrest is caused to have good strain resistant ability in all directions again in this way, ensure that the integrally-built stability of piano；Wooden backing rack of piano is further solved no matter in vertical or horizontal the problem of cracking the tone color sound quality for influencing piano.
Description
Technical field
The utility model is related to musical instruments technical fields, and in particular to a kind of grand piano.
Background technology
Piano is largely divided into upright piano and grand piano, but either upright piano or grand piano from shape,
Its basic structure is the same, and is arranged by string, totally six major parts form for soundboard, stent, keyboard system, pedal machines and shell.
Backrest is the basic components of piano, it is not only the substrate of soundboard, the dependence of side plate, while also subjects indirectly from string system
The pulling force of system remains the integrally-built stability of piano.Therefore, the material of backrest frame, structure, technique are most important.It is existing
Having in technology, grand piano backrest is mainly made of wood materials, the defects of because of material property and production technology, grand piano wood
Easy dehydration cracks backrest processed over time, will influence the tone color sound quality of piano.
Utility model content
The purpose of this utility model is to provide a kind of grand piano, to solve the problems mentioned in the above background technology.
For this purpose, the technical solution used is a kind of grand piano, including backrest, the backrest include backrest frame, dorsal column and
Soundboard, the dorsal column and the soundboard are fixed on the backrest frame, and the dorsal column supports the soundboard；The soundboard is equipped with
Disk, the disk are equipped with several adjusting rods, and the one end of the adjusting rod far from the disk is connect with the backrest frame.
Optionally, the adjusting rod includes the first threaded rod, the second threaded rod and adjusting nut, first threaded rod
One end is connect with the disk, and the other end of first threaded rod far from the disk is equipped with the first external screw thread, and described the
One external screw thread is left-hand thread；One end of second threaded rod is equipped with the second external screw thread, and second external screw thread is right-hand thread；Institute
The second threaded rod is stated to connect with the backrest frame far from the described second externally threaded other end；Described adjusting nut one end is equipped with the
One internal thread, the other end are equipped with the second internal thread, and first internal thread is left-hand thread, and second internal thread is right-hand thread,
First internal thread is matched with the first external screw thread, and second internal thread is matched with the second external screw thread.
Optionally, square planar, the disk are equipped with far from described first externally threaded one end on first threaded rod
It is equipped with and the matched square hole of the square planar.
Optionally, first threaded rod is equipped with nut, and the nut is equipped with left-hand thread, the nut and the first outer spiral shell
Line matches.
Optionally, the disk includes davit and hangs disk, and the davit is pipe, and the davit is fixed with the soundboard, institute
Davit is stated equipped with lifting lug；The bottom surface for hanging disk is equipped with slot and baffle, and the slot and the lifting lug are in mating connection；It is described
Baffle is located at the centre position of the slot, and the both ends of the slot are sky, and the lifting lug is circular arc, and the diameter D of the circular arc is equal to
The width B of the slot.
Optionally, first threaded rod is equipped with protrusion, and the protrusion is described raised vertical close to the square planar
In the square planar and on the inside of the extension disk.
Optionally, the square hole is set as even circumferential distribution on the davit.
Grand piano provided by the utility model, by the way that disk is fixed on soundboard, more adjusting rods can be evenly arranged
On the disk, the other end of adjusting rod is then connect with backrest frame, local accordingly in dorsal column when adjusting rod passes through dorsal column
Equipped with fluting, with anti-interference；Material is thus formed the connections of more adjusting rods being distributed centered on disk and backrest frame.Generally
More of ground adjusting rod is preferably designed for the six roots of sensation or eight, and the space inside backrest has thus been divided into triangle one by one
Shape.Triangle mechanics stability is highest, and design concept is from this.It is good that the design of adjusting rod has backrest
Stability, and due to adjusting rod supporting point distribution in a plurality of directions, cause the backrest in all directions all again in this way
There is good strain resistant ability, ensure that the integrally-built stability of piano；Further solve the wooden backrest of grand piano without
By in vertical or horizontal the problem of cracking the tone color sound quality for influencing piano.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
Under the premise of labour, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the backrest front view of the grand piano of the utility model；
Fig. 2 is partial sectional view shown in FIG. 1；
Fig. 3 is A-A sectional views shown in Fig. 2；
Fig. 4 is B-B sectional views shown in Fig. 2；
11- backrests；12- backrest frames；13- dorsal columns；14- soundboards；15- disks；16- adjusting rods；The first threaded rods of 17-；18-
Second threaded rod；19- adjusting nuts；20- square holes；21- nuts；22- davits；23- hangs disk；24- slots；25- baffles；
The first external screw threads of 171-；172- square planars；173- protrusions；
The second external screw threads of 181-；
The first internal threads of 191-；The second internal threads of 192-；
221- lifting lugs.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected range.
A kind of grand piano provided by the utility model, including backrest 11, the backrest 11 includes backrest frame 12, dorsal column 13
And soundboard 14, the dorsal column 13 and the soundboard 14 are fixed on the backrest frame 12, the dorsal column 13 supports the soundboard 14；
The soundboard 14 is equipped with disk 15, and the disk 15 is equipped with several adjusting rods 16, and the adjusting rod 16 is far from the circle
One end of disk 15 is connect with the backrest frame 12.By the way that disk 15 is fixed on soundboard 14, more adjusting rods 16 can uniform cloth
It puts on the disk 15, the other end of adjusting rod 16 is then connect with backrest frame 12, when adjusting rod 16 passes through dorsal column 13, is being carried on the back
The corresponding place of column 13 is equipped with fluting, with anti-interference；Material is thus formed more adjusting rods 16 being distributed centered on disk 15
With the connection of backrest frame 12.Usually more adjusting rods 16 are preferably designed for the six roots of sensation or eight, thus the sky inside backrest
Between be divided into triangle one by one.Triangle mechanics stability is highest, and design concept is from this.It adjusts
The design of pole 16 makes backrest with good stability, and since the supporting point of adjusting rod 16 is distributed in a plurality of directions, this
Sample causes the backrest to have good strain resistant ability in all directions again, ensure that the integrally-built stability of piano；Into
No matter one step solves the problems, such as the wooden backrest of grand piano in the vertical or horizontal tone color sound quality for cracking influence piano.
The adjusting rod 16 includes the first threaded rod 17, the second threaded rod 18 and adjusting nut 19, first threaded rod
17 one end is connect with the disk 15, and the other end of first threaded rod 17 far from the disk 15 is equipped with the first outer spiral shell
Line 171, first external screw thread 171 are left-hand thread；One end of second threaded rod 18 is equipped with the second external screw thread 181, described
Second external screw thread 181 is right-hand thread；The other end of second threaded rod 18 far from second external screw thread 181 and the backrest
Frame 12 connects；Described 19 one end of adjusting nut be equipped with the first internal thread 191, the other end be equipped with the second internal thread 192, described first
Internal thread 191 be left-hand thread, second internal thread 192 be right-hand thread, 191 and first external screw thread 171 of the first internal thread
It matches, second internal thread 192 is matched with the second external screw thread 181, i.e., the first threaded rod 17 passes through with adjusting nut 19
First internal thread 191 is connect with the first external screw thread 171, the second threaded rod 18 and adjusting nut 19 by the second internal thread 192 with
Second external screw thread 181 connects.First threaded rod 17 and the second threaded rod 18 are linked together by adjusting nut 19, adjust spiral shell
The screw thread at female 19 both ends is set as positive/negative thread, and such rotating adjusting nut 19, which just can reach, adjusts the first threaded rod 17 and the second spiral shell
Length of the rasp bar 18 in adjusting nut 19, so that it may realize the rate of tension for freely adjusting backing rack of piano frame 12 and soundboard 14, soundboard
14 radian and elasticity with regard to that can be needed, to achieve the purpose that be adjusted to preferable piano sound sound quality.In adjusting nut 19
Paddle-tumble can be designed on the outer surface of left-hand thread one end to show difference.
One end far from first external screw thread 171 is equipped with square planar 172, the disk on first threaded rod 17
15 are equipped with and the 172 matched square hole 20 of square planar.The square planar 172 of first threaded rod 17 is inserted into square hole 20
In, since section is rectangular, in rotating adjusting nut 19, it can prevent the first threaded rod 17 from rotating.
First threaded rod 17 is equipped with nut 21, and the nut 21 is equipped with left-hand thread, outside the nut 21 and first
Screw thread matches 171.When regulating the length of the first threaded rod 17 and the second threaded rod 18 in adjusting nut 19, first
Set nut 21 that can prevent adjusting nut 19 from being loosened caused by external force on threaded rod 17, equally on the second threaded rod 18
Corresponding nut can be set to prevent adjusting nut 19 from being loosened caused by external force toward opposite direction.
The disk 15 includes davit 22 and hangs disk 23, and the davit 22 is pipe, and the davit 22 is solid with the soundboard 14
Fixed, the davit 22 is equipped with lifting lug 221；It is described hang disk 23 bottom surface be equipped with slot 24 and baffle 25, the slot 24 with it is described
Lifting lug 221 is in mating connection；The baffle 25 is located at the centre position of the slot 24, and the both ends of the slot 24 are sky, described to hang
Ear 221 is circular arc, and the diameter D of the circular arc is equal to the width B of the slot 24.By carrying out mark on davit 22 and extension disk 23
Davit 22 is first put into the one end for hanging disk 23 by note, then will be hung disk 23 and is pushed toward 22 direction of davit, will hang disk 23 mounted in davit
On 22；When to remove hang disk 23 when by hang disk 23 rotate 90 degree, it is possible to by hang disk 23 remove.
First threaded rod 17 is equipped with protrusion 173, described raised 173 close to the square planar 172, the protrusion
173 perpendicular to the square planar 172 and positioned at 23 inside of extension disk.By the setting of protrusion 173, when regulating the first spiral shell
During length of 17 and second threaded rod 18 of rasp bar in adjusting nut 19, protrusion 173 pushes against the inner wall for hanging disk 23 at this time.Thus
The connection for the more adjusting rods 16 and backrest frame 12 being distributed centered on disk 15 is formd, davit 22 plays support adjusting rod
16 effect, when screwing adjusting nut 19, protrusion 173 stops that square planar 172 is drawn out square hole 20, the pulling force generated at this time
It is acted on the inner wall for hanging disk 23 by protrusion 173, and is circumferentially distributed, therefore there is no by gravity for the part of soundboard 14
It deforms and generates radian, can thus realize the rate of tension for freely adjusting backing rack of piano frame 12 and soundboard 14, soundboard 14 is with regard to energy
The radian needed and elasticity, to achieve the purpose that be adjusted to preferable piano sound sound quality.
The square hole 20 is set as even circumferential distribution on the davit 22.Adjusting rod 16 can in this way be evenly distributed on more
On a direction.
Operation principle：
The first step：Disk 23 will be hung to be mounted on davit 22；
Second step：The first external screw thread 171 on the first threaded rod 17 screws in nut 21；Outside the second of second threaded rod 18
Nut is also screwed on screw thread 181；
Third walks：Respectively by the first external screw thread 171 and the second external screw thread of the second threaded rod 18 on the first threaded rod 17
181 screw in adjusting nut 19 respectively；
4th step：Then one end of the square planar 172 of the first threaded rod 17 is inserted into the square hole 20 of davit 22, at this time
Protrusion 173, which is located at, hangs 23 inside of disk, and when screwing adjusting nut 19, protrusion 173 stops that square planar 172 is drawn out square hole 20；
Identical structure can be used in the connection of second threaded rod 18 and backrest frame 12；Or internal thread is equipped on the second threaded rod 18,
Backrest frame 12 is equipped with hole, and bolt passes through the hole on backrest frame 12 to be screwed into the internal thread on the second threaded rod 18, you can realizes and carries on the back
The connection of frame frame 12；
5th step：Then the first threaded rod 17 of adjusting just can reach by rotating adjusting nut 19 and the second threaded rod 18 exists
The inner wall of disk 23 is hung in length in adjusting nut 19, at this time 173 abutting of protrusion, and the pulling force generated at this time passes through protrusion 173 and acts on
On the inner wall for hanging disk 23, and circumferentially it is distributed.
The rate of tension for freely adjusting backing rack of piano frame 12 and soundboard 14 can be realized by the more than course of work, soundboard 14 is with regard to energy
The radian needed and elasticity, to achieve the purpose that be adjusted to preferable piano sound sound quality.It, will be with circle during adjustment
The adjusting rod 16 being circularly and evenly distributed centered on disk 15 by way of adjusting adjusting nut 19 and taking gradually loading stress value,
It finally reaches adjustment grand piano backrest frame 12 in each direction and the rate of tension of soundboard 14 reaches a specified value；It adjusts in this way
The supporting point distribution of bar 16 in a plurality of directions, causes the backrest to have good strain resistant energy in all directions again in this way
Power ensure that the integrally-built stability of piano；The wooden backrest of grand piano is further solved no matter in vertical or horizontal production
The problem of tone color sound quality of raw cracks influence piano.
Obviously, the above embodiments are merely examples for clarifying the description, and is not intended to limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And the obvious variation thus extended out or
Among the protection domain that variation is created still in the utility model.
Claims (7)
1. a kind of grand piano, including backrest (11), the backrest (11) includes backrest frame (12), dorsal column (13) and soundboard
(14), the dorsal column (13) and the soundboard (14) are fixed on the backrest frame (12), and the dorsal column (13) supports the sound
Plate (14)；
It is characterized in that, the soundboard (14) is equipped with disk (15), the disk (15) is equipped with several adjusting rods (16),
The one end of the adjusting rod (16) far from the disk (15) is connect with the backrest frame (12).
2. grand piano according to claim 1, which is characterized in that the adjusting rod (16) includes the first threaded rod
(17), the second threaded rod (18) and adjusting nut (19), one end of first threaded rod (17) are connect with the disk (15),
The other end of first threaded rod (17) far from the disk (15) is equipped with the first external screw thread (171), the first outer spiral shell
Line (171) is left-hand thread；
One end of second threaded rod (18) is equipped with the second external screw thread (181), and second external screw thread (181) is right-hand thread；
The other end of second threaded rod (18) far from second external screw thread (181) is connect with the backrest frame (12)；
Described adjusting nut (19) one end is equipped with the first internal thread (191), and the other end is equipped with the second internal thread (192), and described the
One internal thread (191) is left-hand thread, and second internal thread (192) is right-hand thread, outside first internal thread (191) and first
Screw thread (171) matches, and second internal thread (192) matches with the second external screw thread (181).
3. grand piano according to claim 2, which is characterized in that far from described first on first threaded rod (17)
One end of external screw thread (171) is equipped with square planar (172), and the disk (15) is equipped with to be matched with the square planar (172)
The square hole (20) of conjunction.
4. grand piano according to claim 2, which is characterized in that first threaded rod (17) is equipped with nut
(21), the nut (21) matches equipped with left-hand thread, the nut (21) with the first external screw thread (171).
5. grand piano according to claim 3, which is characterized in that the disk (15) is including davit (22) and hangs disk
(23), the davit (22) is pipe, and the davit (22) is fixed with the soundboard (14), and the davit (22) is equipped with lifting lug
(221)；
The bottom surface for hanging disk (23) is equipped with slot (24) and baffle (25), and the slot (24) matches with the lifting lug (221)
Connection；
The baffle (25) is positioned at the centre position of the slot (24), and the both ends of the slot (24) are sky, and the lifting lug (221) is
Circular arc, the diameter D of the circular arc are equal to the width B of the slot (24).
6. grand piano according to claim 5, which is characterized in that first threaded rod (17) is equipped with protrusion
(173), raised (173) the close square planar (172), the protrusion (173) is perpendicular to the square planar (172)
And on the inside of the extension disk (23).
7. grand piano according to claim 5, which is characterized in that the square hole (20) is set as on the davit (22)
Even circumferential is distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721535083.XU CN207572052U (en) | 2017-11-16 | 2017-11-16 | A kind of grand piano |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721535083.XU CN207572052U (en) | 2017-11-16 | 2017-11-16 | A kind of grand piano |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207572052U true CN207572052U (en) | 2018-07-03 |
Family
ID=62690449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721535083.XU Active CN207572052U (en) | 2017-11-16 | 2017-11-16 | A kind of grand piano |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207572052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022036963A1 (en) * | 2020-08-19 | 2022-02-24 | 苏州礼乐乐器股份有限公司 | Sound board having sound beams and sound tunnels in upright piano |
-
2017
- 2017-11-16 CN CN201721535083.XU patent/CN207572052U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022036963A1 (en) * | 2020-08-19 | 2022-02-24 | 苏州礼乐乐器股份有限公司 | Sound board having sound beams and sound tunnels in upright piano |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210806 Address after: 163000 zone K 101, industrial zone 1 (No. 210, Keji Road), high tech Zone, Daqing City, Heilongjiang Province Patentee after: Heilongjiang Dianjiang musical instrument accessories manufacturing Co.,Ltd. Address before: 115000 21 Minxing Hebei Street, Xishi District, Yingkou City, Liaoning Province Patentee before: MASON & HAMLIN MUSICAL INSTRUMENT (YINGKOU) CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230530 Address after: 201600, 2nd Floor, Building 8, No. 518 Jindu West Road, Xinqiao Town, Songjiang District, Shanghai Patentee after: SHANGHAIHANSENPIANO Co.,Ltd. Address before: 163000 zone K 101, industrial zone 1 (No. 210, Keji Road), high tech Zone, Daqing City, Heilongjiang Province Patentee before: Heilongjiang Dianjiang musical instrument accessories manufacturing Co.,Ltd. |