CN2452084Y

CN2452084Y - Reverberation vertical piano

Info

Publication number: CN2452084Y
Application number: CN 00259508
Authority: CN
Inventors: 陈惠庆
Original assignee: SHANGHAI PIANO CO Ltd
Current assignee: SHANGHAI PIANO CO Ltd
Priority date: 2000-12-06
Filing date: 2000-12-06
Publication date: 2001-10-03
Anticipated expiration: 2010-12-06

Abstract

The utility model relates to a reverberation vertical piano. One secondary reverberation box body 3 with certain thickness is arranged below a top cover 1 and above a resonance plate 2 of the vertical piano, and the length and the width of the secondary reverberation box body 3 are identical with those of the resonance plate 2. Four sound releasing holes 6 are uniformly arranged in the direction of the length of the secondary reverberation box body 3, and sound frames which are made of ABS plastic by means of injection molding is embedded into the four sound releasing holes. The appearance of the piano is novel, and the piano is transmitted out through the secondary reverberation box body 3 at the top part after the reverberation of the piano sound in the piano reach the optimum state. The sound quality and the volume are improved. When the utility model is used, the top cover 1 does not need to be opened, and the piano sound can be sonorously spread over the entire space in a room. The utility model has the advantage that a player's sight line is not blocked.

Description

A kind of reverberation upright piano

The utility model relates to music musical instrument technical field, particularly upright piano technical field.

Piano has just been liked by the music-lover of countries in the world with the broadness and the abundant expressive force of its range since being born.Usually the known upright piano of people, the STRAUSS UP115 upright piano produced of Shanghai Piano Co., Ltd. for example, it makes its each big parts become as a whole by the connection effect of shell.And shell also constitutes the space of a relative closure as supporting member the time, makes sound reflect on the shell plane, absorb, and mixes in this enclosure space, stack.When piano used, the player was seated on the music stool, can more desirably be communicated to the whole interior space for making sound, makes sound more loud and clear simultaneously, often needs top cover is opened.But this must be cost with the sight line of blocking the player, and particularly in teaching practice, teacher's sight line is kept off, the influence teaching, and influence exchanges with the student's.

The purpose of this utility model is to provide a kind of reverberation upright piano of novelty, makes the player need not open top cover and just can make sound more desirably be sent to the whole interior space, to avoid unsighted, makes things convenient for teaching to exchange with teachers and students.

The know-why that the utility model adopted is: quote known acoustics refraction principle of the industry and sound reverberation theory, the total unit that calculates piano inside absorbs the number derivation echo second number of the same period, and then offer some louvers on piano top therefrom according to the average area that the average interval that the casing of piano volumescope is calculated is derived louver, solved the top cover that to open the piano lid well and but made the inner sound of qin reach optimum condition effectively, the more loud and clear interior space that is delivered to.Case surface adopts the coating material of high rigidity to handle simultaneously, improves the reflectivity of sound, reduces absorptivity.

The major technique structure of a kind of reverberation upright piano that the utility model provides is as follows:

Fig. 1 is the front elevation (broken section) of a kind of piano of providing of the utility model

Fig. 2 is the side sectional view (inner uncorrelated incomplete structure) of a kind of piano of providing of the utility model

Fig. 3 is the structural drawing of the secondary reverberation casing of a kind of piano of providing of the utility model

Fig. 4 is that listed sequence number is represented among above-mentioned each figure of structural drawing of playback frame of a kind of piano of providing of the utility model: 1, two medium density fiberboard of the manufacturing materials of one of manufacturing materials of top cover 2, allow 3, secondary reverberation casing 4, playback aperture 5, playback frame 6, louver 7, secondary reverberation casing 3 Chinese catalpa wood 8, secondary reverberation casing 3

The key problem in technology of a kind of reverberation vertical piano that the utility model provides is: Above the allow 2 of existing upright piano, top cover 1 below set up one The secondary reverberation casing 3 that piece equates with allow 2 length and widths; At described secondary On the reverberation casing 3, offer equably along its length four louvers 6, described Louver 6 in correspondingly embed a plastics playback frame 5, and playback frame 5 In be laid with equably the playback aperture 4 of right quantity, the internal diameter of aperture is 4～5mm, thickness are 6mm. Raising sound is adopted on shell surface at described piano The high rigidity of reflectivity and reduction absorptivity is covered with paint, lacquer, colour wash, etc. material processed.

Below in conjunction with drawings and Examples, be described in detail a kind of reverberation upright piano that the utility model provides:

What present embodiment adopted is aforesaid STRAUSS UP115 upright piano.Above the allow 2 of described piano, top cover 1 below, set up a secondary reverberation casing 3 that equates (the wide 120mm of long 1444mm) with allow 2 length and width.Its technological process is as follows: with the medium density fiberboard and synthetic secondary reverberation casing 3 blanks of Chinese catalpa wood glue of certain specification size, put in place by means processing dimensions such as saw planes, offer four oblong louvers 6 equably along the length direction of secondary reverberation casing 3 again, the length of louver 6 is 220mm, width is 25mm, and the spacing in each hole is 80mm.And handle with corresponding coating material.Itself and allow 2 gummeds is fixing, and the dimensional requirement of pressing louver 6 then is injection molded into playback frame 5 and it is embedded louver 6 with ABS plastic.Edge and louver 6 hole walls of noting playback frame 5 should be good secure fit.Playback aperture 4 about 82 the about 4mm of internal diameter evenly distributes on the described playback frame 5.After finishing above-mentioned technical matters requirement, the case surface of piano is adopted the unsaturated polyester varnish covering with paint processing processing of high rigidity.

Technical know-how that is adopted in the present embodiment and account form, technology, equipment are all known and are understood by manufacturing colleague of piano, do not give unnecessary details in addition.

Below only be to be described in conjunction with an embodiment of the present utility model.Be understood that those skilled in the art that do to change just can be applied in the upright piano of various height on this basis slightly.For example, the shape of louver, playback frame and playback aperture, quantity, size all can be made variation.

The utility model is compared with existing product, and the piano outward appearance is more attractive in appearance, in the piano The sound reverberation reach optimum state, the tonequality volume is obviously improved, and the player is made Time spent needn't be opened top cover again, makes sound of musical instrument spread all over the whole interior space loud and clearly. This New product is after the user is on probation, and feedback opinion is good, particularly is subjected to music universities and colleges Teachers and students' appreciation thinks that sight line is not stopped when playing, and is fit to very much teaching Exchange with teachers and students.

Claims

1. reverberation upright piano, it is made up of several major parts such as shell, allow, hammered string instrument, keyboard and step systems, it is characterized in that: above the allow 2 of upright piano, top cover 1 below set up one equate with allow 2 length and widths certain thickness secondary reverberation casing 3 arranged; On described secondary reverberation casing 3, offer four louvers 6 along its length equably; And in described louver 6, correspondingly embed a plastics playback frame 5.

2. piano as claimed in claim 1 is characterized in that: louver 6 be shaped as Long Circle or square or triangle, quantity is 2～5.

3. piano as claimed in claim 1 is characterized in that: the shape of playback frame 5 is corresponding with the shape and the quantity of louver 6 with quantity.

4. piano as claimed in claim 1 is characterized in that: be laid with the playback aperture 4 of right quantity in playback frame 5 equably, the internal diameter of playback aperture 4 is 4～5mm, and thickness is 6mm.

5. piano as claimed in claim 4 is characterized in that: the internal diameter of playback aperture 4 is 6～10mm, and its quantity is 30～70.

6. piano as claimed in claim 1 is characterized in that: the case surface at piano adopts the coating material of the high rigidity that improves the audio emission rate and reduce absorptivity to handle.