CN101471066B - Piano and piano hinge structure - Google Patents
Piano and piano hinge structure Download PDFInfo
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- CN101471066B CN101471066B CN 200810027497 CN200810027497A CN101471066B CN 101471066 B CN101471066 B CN 101471066B CN 200810027497 CN200810027497 CN 200810027497 CN 200810027497 A CN200810027497 A CN 200810027497A CN 101471066 B CN101471066 B CN 101471066B
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- hinge
- piano
- leaf
- rotation hole
- mandrel
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Abstract
The invention discloses a piano and a piano hinge structure, wherein the piano comprises a piano body, a top cover and a hinge, wherein a main hinge leaf of the hinge is fixedly connected with a back frame of the piano body, an auxiliary hinge leaf is fixedly connected with the top cover, both the main hinge leaf and the auxiliary hinge leaf are provided with a group of rotating holes whose axial centers are accordant, and mandrels are traversed through the rotating holes and hinge the main hinge leaf and the auxiliary hinge leaf. Inner threads are arranged in at least one of the rotating holes of the main hinge leaf or/and at least one of the rotating holes of the auxiliary hinge leaf. The mandrels are provided with external threads which are screwed with the inner threads. The hinge structure can prevent the problem of easily disengaging the mandrels of the hinge in the piano, thereby improving the durability of the piano.
Description
Technical field
The present invention relates to a kind of piano, especially relate to the piano hinge structure that a kind of mandrel that prevents hinge comes off, and the piano with this hinge structure.
Background technology
Piano comprises piano body and top cover, and top cover generally is to be fixed on the backboard of piano body one side by hinge.When needs use piano, only need draw the commentaries on classics top cover, top cover can be by rotating centered by the hinge; When not needing to use piano, draw the commentaries on classics top cover that itself and piano body are coincide.
Yet, because present hinge structure defective, when the user constantly repeats to draw when changeing top cover or long-term the use, be easy to cause the mandrel of hinge from rotation hole, to break away from, thereby make top cover and the disengaging of piano body, not only influence the attractive in appearance of piano, more make the user use inconvenience.
Summary of the invention
Technical matters to be solved by this invention is to propose the piano hinge structure that a kind of mandrel that prevents hinge comes off, and the piano with this hinge structure, to improve the durability of piano, convenient user.
For solving technical matters of the present invention, the present invention discloses a kind of piano, comprising: piano body, top cover and hinge; The back of the body frame of the fixedly connected described piano body of main leaf of hinge of described hinge, the fixedly connected described top cover of secondary leaf of hinge; And described main leaf of hinge is equipped with one group of consistent rotation hole of axle center with described secondary leaf of hinge, and it is hinged with described main leaf of hinge and described secondary leaf of hinge to run through described rotation hole by mandrel; One of them of a described main leaf of hinge rotation hole is or/and one of them of a described secondary leaf of hinge rotation hole is provided with internal thread; And described mandrel is provided with the external thread that is screwed with described internal thread.
More excellent, described main leaf of hinge is provided with protuberance, and the setting that offsets of the rotation hole of the end of described protuberance and described secondary leaf of hinge.
More excellent, described mandrel has the end portion that is crushed and exposes outside described rotation hole.
More excellent, described mandrel is provided with several pads.
More excellent, be respectively equipped with one group of circular hole that supplies screw to place on described main leaf of hinge and the described secondary leaf of hinge.
In addition, the present invention also discloses a kind of piano hinge structure, comprising: main leaf of hinge, secondary leaf of hinge and mandrel; Described main leaf of hinge is equipped with one group of consistent rotation hole of axle center with described secondary leaf of hinge, and it is hinged with described main leaf of hinge and described secondary leaf of hinge to run through described rotation hole by mandrel; One of them of a described main leaf of hinge rotation hole is or/and one of them of a described secondary leaf of hinge rotation hole is provided with internal thread; And described mandrel is provided with the external thread that is screwed with described internal thread.
Compared with prior art, the present invention has following beneficial effect:
The present invention by at one of them rotation hole of described main leaf of hinge or/and one of them of a described secondary leaf of hinge rotation hole is provided with internal thread; And described mandrel relevant position is provided with the external thread that is screwed with described internal thread, thereby has prevented mandrel to break away from hinge and top cover is separated with the piano body, can improve the durability of piano, and convenient user uses.
Description of drawings
Fig. 1 is the planar structure synoptic diagram of piano of the present invention;
Fig. 2 is the planar structure synoptic diagram of hinge among Fig. 1;
Fig. 3 is the planar structure synoptic diagram of another embodiment of hinge under the state that closes among Fig. 1.
Fig. 4 is the planar structure synoptic diagram of another embodiment of piano of the present invention.
Embodiment
With reference to shown in Figure 1.Piano of the present invention comprises: piano body 10, top cover 20 and be connected piano body 10 and top cover 20 between hinge 30.
In conjunction with shown in Figure 2, described hinge 30 comprises main leaf of hinge 31, secondary leaf of hinge 32 and mandrel 33; Described main leaf of hinge 31 is equipped with one group of consistent rotation hole of axle center with described secondary leaf of hinge 32, and it is hinged with described main leaf of hinge 31 and described secondary leaf of hinge 32 to run through described rotation hole by mandrel 33.And, the back of the body frame 11 of described main leaf of hinge 31 fixedly connected described piano bodies 10, described secondary leaf of hinge 32 fixedly connected described top covers 20.
In conjunction with shown in Figure 3, for preventing that described mandrel 33 breaks away from rotation hole, present embodiment at one of them rotation hole of described main leaf of hinge 31 or/and one of them rotation hole of described secondary leaf of hinge 32 is provided with internal thread 34, and described mandrel 33 is provided with the external thread 331 that is screwed with described internal thread 34, described mandrel 33 and described rotation hole are screwed togather and is unlikely to break away from easily.Such as, Figure 3 shows that described secondary leaf of hinge 32 rotation hole topmost arranges internal thread, and described mandrel 33 is provided with the external thread that is screwed with it.
Therefore, when drawing when changeing described top cover 20, described secondary leaf of hinge 32 is followed described top cover 20 and is rotated centered by described mandrel 33; Described mandrel 33 is by being screwed with described rotation hole, even described rotation hole produces abducent suitably lax, also be unlikely to make described mandrel 33 from described rotation hole, to break away from, thereby effectively prevent from causing described top cover 20 to break away from the described piano body 10 of connection owing to described mandrel 33 breaks away from rotation hole.
In conjunction with shown in Figure 4, when the present invention changes described top cover 20 for further preventing from drawing, mandrel 33 breaks away from rotation hole and causes described top cover 20 to break away from the described piano body 10 of connection, so the present invention can be provided with protuberance 311 on described main leaf of hinge 31, and the setting that offsets of the rotation hole of the end of described protuberance 311 and described secondary leaf of hinge 32.For example, described protuberance 311 can be to protrude the independent component that arranges from the surface of described main leaf of hinge 31, also can be afterwards formed by the thickness thickening of described main leaf of hinge 31 correspondence positions, but be not as limit.
And the end portion that described mandrel 33 is exposed outside described rotation hole is flattened, and makes its end portion can't pass described rotation hole, thereby can prevent that described mandrel 33 from coming off from described rotation hole.
Therefore, when drawing when changeing described top cover 20, described secondary leaf of hinge 32 is followed described top cover 20 and is rotated centered by described mandrel 33; And because protuberance 311 described in the rotation process contacts at the rotation hole of described secondary leaf of hinge 32, the rotation hole of described secondary leaf of hinge 32 can not become flexible, thereby can increase the degree of adhesion between hinge and the piano, prevent from causing described top cover 20 to break away from the described piano body 10 of connection owing to described mandrel 33 breaks away from rotation hole.
And, in order to improve the dirigibility that hinge rotates, avoid 2 adjacent rotation holes to produce interference mutually because displacement takes place in rotation process, so be provided with several pads at described mandrel 33, each pad is arranged between 2 adjacent rotation holes.
During use, only need to place the one group of circular hole 312 and 322 that supplies screw to place that is respectively equipped with on described main leaf of hinge 31 and the described secondary leaf of hinge 32 respectively by screw, described main leaf of hinge 31 is separately fixed on described backboard 11 and the described top cover 20 with described secondary leaf of hinge 32.
The above only is the specific embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a piano comprises: piano body (10), top cover (20) and hinge (30); The back of the body frame (11) of the fixedly connected described piano body of main leaf of hinge (31) (10) of described hinge (30), the fixedly connected described top cover of secondary leaf of hinge (32) (20); And described main leaf of hinge (31) is equipped with one group of consistent rotation hole of axle center with described secondary leaf of hinge (32), and it is hinged with described main leaf of hinge (31) and described secondary leaf of hinge (32) to run through described rotation hole by mandrel (33);
It is characterized in that: one of them rotation hole of described main leaf of hinge (31) is or/and one of them rotation hole of described secondary leaf of hinge (32) is provided with internal thread (34); And described mandrel (33) is provided with the external thread (331) that is screwed with described internal thread (34); Described main leaf of hinge (31) is provided with protuberance (311), and the setting that offsets of the rotation hole of the end of described protuberance (311) and described secondary leaf of hinge (32);
In addition, described mandrel (33) is provided with several pads.
2. piano according to claim 1, it is characterized in that: described mandrel (33) has the end portion that is crushed and exposes outside described rotation hole.
3. piano according to claim 1 is characterized in that: be respectively equipped with one group of circular hole (312 and 322) that supplies screw to place on described main leaf of hinge (31) and the described secondary leaf of hinge (32).
4. a piano hinge structure comprises: main leaf of hinge (31), secondary leaf of hinge (32) and mandrel (33); Described main leaf of hinge (31) is equipped with one group of consistent rotation hole of axle center with described secondary leaf of hinge (32), and it is hinged with described main leaf of hinge (31) and described secondary leaf of hinge (32) to run through described rotation hole by mandrel (33);
It is characterized in that: one of them rotation hole of described main leaf of hinge (31) is or/and one of them rotation hole of described secondary leaf of hinge (32) is provided with internal thread (34); And described mandrel (33) is provided with the external thread (331) that is screwed with described internal thread (34); Described main leaf of hinge (31) is provided with protuberance (311), and the setting that offsets of the rotation hole of the end of described protuberance (311) and described secondary leaf of hinge (32);
In addition, described mandrel (33) is provided with several pads.
5. piano hinge structure according to claim 4, it is characterized in that: described mandrel (33) has the end portion that is crushed and exposes outside described rotation hole.
6. piano hinge structure according to claim 4 is characterized in that: be respectively equipped with one group of circular hole (312 and 322) that supplies screw to place on described main leaf of hinge (31) and the described secondary leaf of hinge (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810027497 CN101471066B (en) | 2008-04-18 | 2008-04-18 | Piano and piano hinge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810027497 CN101471066B (en) | 2008-04-18 | 2008-04-18 | Piano and piano hinge structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101471066A CN101471066A (en) | 2009-07-01 |
| CN101471066B true CN101471066B (en) | 2013-07-17 |
Family
ID=40828481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810027497 Active CN101471066B (en) | 2008-04-18 | 2008-04-18 | Piano and piano hinge structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101471066B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2073019U (en) * | 1990-05-04 | 1991-03-13 | 翟茂松 | Hinge |
| CN2323097Y (en) * | 1997-12-19 | 1999-06-09 | 哈尔滨市哈飞机械技术开发公司金属防盗器材厂 | Adjustable ball supporting hinge |
| CN1222721A (en) * | 1997-08-06 | 1999-07-14 | 雅马哈株式会社 | Keyboard musical instrument having fall-board assembled with case by means of oldham's coupling |
| CN200943372Y (en) * | 2006-08-30 | 2007-09-05 | 程新江 | Hinge |
-
2008
- 2008-04-18 CN CN 200810027497 patent/CN101471066B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2073019U (en) * | 1990-05-04 | 1991-03-13 | 翟茂松 | Hinge |
| CN1222721A (en) * | 1997-08-06 | 1999-07-14 | 雅马哈株式会社 | Keyboard musical instrument having fall-board assembled with case by means of oldham's coupling |
| CN2323097Y (en) * | 1997-12-19 | 1999-06-09 | 哈尔滨市哈飞机械技术开发公司金属防盗器材厂 | Adjustable ball supporting hinge |
| CN200943372Y (en) * | 2006-08-30 | 2007-09-05 | 程新江 | Hinge |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2008-14058A 2008.01.24 |
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| Publication number | Publication date |
|---|---|
| CN101471066A (en) | 2009-07-01 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 510000, Guangzhou, Guangdong, Liwan District province flower road, South fisheries West Road Applicant after: Guangzhou Pearl River Piano Group Co., Ltd. Address before: 510388, Guangzhou, Guangdong, Liwan District province flower road, South fisheries West Road Applicant before: Guangzhou Pearl River Piano Group Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: GUANGZHOU PEARL RIVER PIANO GROUP LTD. TO: PEARL RIVER PIANO GROUP CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU ZHUJIANG KAYSERBURG PIANO CO., LTD. Free format text: FORMER OWNER: PEARL RIVER PIANO GROUP CO., LTD. Effective date: 20130725 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 510000 GUANGZHOU, GUANGDONG PROVINCE TO: 511338 GUANGZHOU, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130725 Address after: 511338, Guangdong, Guangzhou, Zengcheng, Xintang Town, Xiangshan Avenue, Eastern Guangzhou (Zengcheng) auto industry base Patentee after: Guangzhou Zhujiang Kayserburg Piano Co., Ltd. Address before: 510000, Guangzhou, Guangdong, Liwan District province flower road, South fisheries West Road Patentee before: Guangzhou Pearl River Piano Group Co., Ltd. |