CN2204445Y - Compound general rail of piano - Google Patents
Compound general rail of piano Download PDFInfo
- Publication number
- CN2204445Y CN2204445Y CN 94216600 CN94216600U CN2204445Y CN 2204445 Y CN2204445 Y CN 2204445Y CN 94216600 CN94216600 CN 94216600 CN 94216600 U CN94216600 U CN 94216600U CN 2204445 Y CN2204445 Y CN 2204445Y
- Authority
- CN
- China
- Prior art keywords
- piano
- layer
- general rail
- grain
- single plates
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Veneer Processing And Manufacture Of Plywood (AREA)
Abstract
The utility model relates to an improvement on the general rail structure of a piano. The structure of the compound general rail of the piano is composed of 22 to 140 layers of color wooden single plates; when each layer of the color wooden single plates is glued, sequential grain is in the same direction; the sequential grain and the length direction of a general rail also have the same direction; the color wooden single plates in each layer have the same thickness. Because of the piano general rail with the structure, defects existing in lumber are allowed to be repaired due to the adoption of a color wooden multilayer composite structure. The color wooden single plates which are repaired can be put in an interlayer, and thereby, utilization rate of lumber is enhanced, and the problems of easy deformation and cracking and difficult material selection existing in the original solid wood general rails are solved.
Description
The utility model is the improvement of the total mark structure of piano.
The total shelves of piano are to be processed by look flitch material at present, and its structure is the total shelves of solid wood.The total shelves of the solid wood of this structure easily produce distortion or cracking after moisture absorption or losing moisture content, seriously influenced the quality of piano; And the materials requirement is very strict, and defectives such as knot, crackle, scar and bark pocket mustn't be arranged, and timber utilization rate is very low.
The purpose of this utility model provides a kind of compound total shelves of piano of new construction.
The purpose of this utility model is to realize like this.The compound total grade structure of piano is made up of 22-140 layer look veneer, during every layer of look veneer gummed, it is along the grain equidirectional, and along the grain with total grade of length direction in the same way, every layer of look veneer thickness is identical, and the specification of total shelves is decided according to the specification of piano.
The total shelves of the piano of this structure, owing to adopted look wood multi-layer compound structure, even being permitted repaired the defective that timber exists, look veneer after the repairing can be placed in the interlayer, improved the utilization factor of timber so widely, this composite structure has solved also that the total shelves of former solid wood are yielding, the difficult problem of cracking, difficult selection.
The utility model is provided by following examples and accompanying drawing thereof.
Accompanying drawing is the utility model structural representation.
1 look veneer, 2 along the grain,
A 70MM is an example with the total shelves of piano thickness: the total shelves of piano are made up of the look veneer of 35 layers of 2MM, scribble phenol glue between every layer, during gummed, every layer of look veneer along the grain will be by same direction, and veneer is along the grain identical with total grade of length direction.Hot-forming.
Claims (1)
1, the compound total shelves of a kind of piano is characterized in that being made up of 22-140 layer look veneer, and when every layer of look veneer glued together, it was along the grain equidirectional, and along the grain with total grade of length direction in the same way; Every layer of look veneer thickness is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94216600 CN2204445Y (en) | 1994-07-08 | 1994-07-08 | Compound general rail of piano |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94216600 CN2204445Y (en) | 1994-07-08 | 1994-07-08 | Compound general rail of piano |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2204445Y true CN2204445Y (en) | 1995-08-02 |
Family
ID=33832259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94216600 Expired - Fee Related CN2204445Y (en) | 1994-07-08 | 1994-07-08 | Compound general rail of piano |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2204445Y (en) |
-
1994
- 1994-07-08 CN CN 94216600 patent/CN2204445Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |