CN201323046Y

CN201323046Y - Vertical piano iron plate

Info

Publication number: CN201323046Y
Application number: CNU2008201548600U
Authority: CN
Inventors: 陈海伦
Original assignee: HAILUN PIANO CO Ltd
Current assignee: HAILUN PIANO CO Ltd
Priority date: 2008-11-04
Filing date: 2008-11-04
Publication date: 2009-10-07
Anticipated expiration: 2018-11-04

Abstract

The utility model relates to a vertical piano iron plate which is produced by casting cast iron, nail holes for nuts and saddles (1) of a bass sound zone of the piano iron plate are straight holes, namely nails for the nuts and the saddles (3) of the bass sound zone and the piano iron plate form an included angle of 90 degrees; and iron plate back ribs (2) are arranged at the lower end of the piano iron plate and adhered to a tuning peg plate (5) of a piano back frame in a matched manner. The specification of the piano iron plate is 1418 multiplied by 1074mm. The vertical piano iron plate has simple structure and is applicable to pianos with low price and small size, which are warmly welcomed by piano-playing children. Therefore, the vertical piano iron plate has great benefits for promoting the use of the pianos.

Description

Upright piano iron plate

Technical field

The utility model belongs to piano and makes the field, particularly relates to a kind of upright piano iron plate.

Background technology

It is the method for 5 ° of inclined holes that piano in the market all adopts capotasto nail hole, its difficulty of processing height, and string and capotasto nail be difficult for fitting firm, causes piano that noise is arranged.

The tension force of every string has more than 70 kilogram in the piano, a piano iron plate is being born the power of 16000-20000 kilogram, the extension string that one end of string hangs over iron plate nails on, the other end hangs on the peg, and peg is planted on the string shaft of carrying on the back on the frame, piano tuning tension string, string tension force is increased, back of the body frame is stressed, surpasses going up in limited time of bearing when back of the body frame is stressed, and back of the body frame will be out of shape.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of upright piano iron plate, and it is not tight to fit with string steel wire in the solution prior art and capotasto nail, the yielding defective of back of the body frame.

The technical scheme that its technical matters that solves the utility model adopts is: a kind of upright piano iron plate is provided, make by the steel plate punching press, it is characterized in that: the capotasto nail hole of the bass area of described piano iron plate is straight hole, and promptly bass area capotasto nail becomes 90 degree angles with piano iron plate; There is the iron plate backing strip lower end of described piano iron plate, and the string shaft that itself and piano are carried on the back frame fits.

Described piano iron plate specification 1418x1074mm.

Piano iron plate is played the iron plate backing strip, and fits with the string shaft of piano back of the body frame, plays and supports the effect of back of the body frame, prevents to carry on the back frame and is out of shape.The backing strip of this product is to have added process redundancy when casting, use the CNC Cutter Body Processing with Machining Center again, thereby guaranteed the accurate of backing strip position, make the piano string axillare can bear more pulling force by the iron plate backing strip, thereby further guaranteed the flatness of piano back of the body frame, made back of the body frame not yielding.

Beneficial effect

The utility model is simple in structure, and the applying of the string steel wire of bass area and capotasto nail is tightr, efficiently solves because of being fitted with the slit problem of noise to occur.Piano iron plate is played the iron plate backing strip, and fits with the string shaft of piano back of the body frame, plays and supports the effect of back of the body frame, prevents to carry on the back frame and is out of shape.It is low in price that the utility model be fit to use, and on the small and exquisite piano of outward appearance, this kind piano is subjected to qin child's favor deeply, for the use of promoting piano very big benefit is arranged.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is a capotasto pin structure enlarged drawing of the present utility model.

Fig. 3 is the capotasto pin structure enlarged drawing of second kind of the utility model.

Fig. 4 is the utility model iron plate backing strip synoptic diagram.

Fig. 5 is the utility model iron plate backing strip enlarged drawing.

Fig. 6 hangs the string synoptic diagram for the utility model.

Among the figure: 1-steel plate capotasto nail hole 2-iron plate backing strip 3-capotasto nail 4-string 5-back of the body frame string shaft 6-joint place 7-hangs string nail 8-peg

Fig. 7 hangs string B place synoptic diagram for the utility model.

Fig. 8 hangs string A place synoptic diagram for the utility model.

Embodiment

Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.

As shown in Figure 1, the utility model is a kind of upright piano iron plate, is made by iron casting.Piano iron plate specification 1418x1074mm.This kind specification iron plate is applicable to the upright piano that is assembled into 110～113 specifications, and the piano market of this class specification is the qin child who begins to learn piano.

As shown in Figure 2, the capotasto of bass area nail hole is straight hole, that is to say that bass area capotasto nail does not have angle.The applying of making the string steel wire that makes bass area and capotasto nail like this is tightr, efficiently solves because of being fitted with the slit problem of noise to occur.All adopting capotasto nail hole in the market is the method for 5 ° of inclined holes, the difficulty of processing height, and string and capotasto nail be difficult for fitting firm, causes piano that noise is arranged.

Shown in Fig. 3,4, piano iron plate of the present utility model is played the iron plate backing strip, and fits with the string shaft of piano back of the body frame, plays and supports the effect of back of the body frame, prevents to carry on the back frame and is out of shape.The backing strip of this product is to have added process redundancy when casting, use the CNC Cutter Body Processing with Machining Center again, thereby guaranteed the accurate of backing strip position, make the piano string axillare can bear more pulling force by the iron plate backing strip, thereby further guaranteed the flatness of piano back of the body frame, made back of the body frame not yielding.

Claims

1. a upright piano iron plate is made by iron casting, it is characterized in that: the capotasto nail hole (1) of the bass area of described piano iron plate is straight hole, and promptly bass area capotasto nail (3) becomes 90 degree angles with piano iron plate; There is iron plate backing strip (2) lower end of described piano iron plate, and the string shaft (5) that itself and piano are carried on the back frame fits.

2. a kind of upright piano iron plate according to claim 1 is characterized in that: described piano iron plate specification 1418 * 1074mm.