CN2548232Y - Improved high acoustic quality dulcimer - Google Patents

Abstract

The utility model relates to an invention of dulcimer with modified high sound quality, which is characterized in that the prior cylindrical rolling bridges of high musical range of the dulcimer are replaced with specially designed triangular rolling bridges, therefore keeping the convenient regulating of prior cylindrical rolling bridges, reducing the interface of musical string and bridges of the high musical range from an arc to a point, and increasing the angle of the musical string and the bridges. Then, the vibration of the musical string can be effectively transferred on the panel of the dulcimer by the triangular rolling bridges, and sound cavity of the dulcimer can sufficiently vibrate. A high voice artificial reverberator is used simultaneously, therefore greatly improving the sound quality and the timbre of the dulcimer. The high voice of the dulcimer sounds bright, ringing, and transparent, and the dulcimer is greatly upgraded and improved in steps, which can be a 'dulcimer revolution'.

Description

The beautiful sound dulcimer of a kind of improvement high tone quality

The utility model is national kind musical instrument---a kind of improvement of dulcimer is the invention that improves the beautiful sound dulcimer of high tone quality about a kind of.

Now, the tonequality of dulcimer treble and tone color are not fine, sound more vexed, and not clear and melodious, not bright, opaque, this is a ubiquitous problem.The producer that has makes an issue of on the panel of dulcimer.In the position of dulcimer treble, do panel thinner.The result, tonequality and tone color are to have had a bit to improve.But, inhomogeneous because panel " is favoured one and slighted the other ", cause stressed irregular, simultaneously, because the string of dulcimer treble all draws tightlyer relatively, also relatively large again to the pressure of dulcimer panel; The treble panel is easy to break.Very big trouble and unnecessary loss have been caused.Therefore, this measure is lost more than gain a little.

That what reason has caused the treble tone color not beautiful? is there problem in the sound chamber that is dulcimer? is the way that changes the dulcimer plate thickness a science? can the thickness that does not change the dulcimer panel improve the tonequality and the tone color of dulcimer treble?

Clear and definite answer be! No problem the sound chamber of dulcimer be! The thickness that does not change the dulcimer panel could improve the tonequality and the tone color of dulcimer treble equally, and can improve finely! Unscientific the way that changes the dulcimer plate thickness be! And just solved some fur problems, do not grasp the essentials of a problem at all! What is the essence of problem so?

On the panel of dulcimer, usually can see some columniform rolling music wires, this is to tune a stringed instrument for convenience and specially be provided with.It give to transfer qin to bring very big convenience, and still, it is very important to the influence of dulcimer tonequality and tone color, particularly to dulcimer treble tonequality and tone color to influence all too big!

The relative position of cylindrical rolling music wire and string is as shown in Figure 1: A is a string of dulcimer treble, and B is cylindrical rolling music wire; C is the panel of dulcimer; Cylindrical rolling music wire is an arc L with contacting of string, is a section of the face of cylinder of string and the cylindrical rolling music wire circular arc line of embracing, is an arc! Rather than point.Can seriously the decay vibrations of string of this arc L; Again because string and cylindrical rolling music wire are to friendship with tangential way, its angle is a very little acute angles beta (as Fig. 1), can hinder the high-frequency vibration of string, make the vibrations (particularly high-frequency vibration) of string can not be transferred to the panel of dulcimer effectively by cylindrical rolling music wire, make the sound chamber of dulcimer can not get sufficient vibrations.Thereby influence sending of dulcimer sound, make the sound of dulcimer, particularly the sound of high pitch part does not sound more vexed, and is crisp at all, do not become clear, do not have penetration power!

Have no idea to solve? way after all has! The triangle sliding organ sign indicating number that the utility model uses is invented for addressing this problem.

The utility model with cylindrical rolling music wire, makes triangle sliding organ sign indicating number into.Tune a stringed instrument for convenience---the qin sign indicating number can slidably reciprocate when tuning a stringed instrument, and triangle sliding organ sign indicating number has been drawn the advantage of cylindrical rolling music wire, in the bottom design of triangle sliding organ sign indicating number a pair of needle roller (as shown in Figure 3).Like this, both satisfied the requirement that the qin sign indicating number slidably reciprocates when tuning a stringed instrument, reduced contact " face " of string again, made original one section camber line L (as Fig. 1), shortened to a some P (as Fig. 2) with the qin sign indicating number; Increased the angle between string and the qin sign indicating number.Thereby reduced the loss of string vibrations, improved the tonequality of dulcimer treble, the tone color of having beautified the dulcimer treble.

The triangle sliding organ sign indicating number that the utility model uses and the relative position of string be as shown in Figure 2: a is a string of dulcimer treble, and b is the triangle sliding organ sign indicating number that the utility model uses; C is the panel of dulcimer; String is a some P with contacting of triangle sliding organ sign indicating number.As seen from Figure 2, the angle between string and the qin sign indicating number obviously increases, and the vibrations of string can both be transferred to the panel of dulcimer greatly effectively, and the loss of string vibrations is reduced, and the sound chamber of dulcimer just can fully be shaken, the sound that dulcimer just can send is clear and melodious, become clear.Particularly the sound equipment of high pitch part can become very transparent, beautiful, moving.The tonequality and the tone color of dulcimer are improved a very big class, a last big step.This very could deserve to be called once " dulcimer revolution "!

The triangle sliding organ sign indicating number that the utility model uses, as shown in Figure 3: form by tripod string section (1), needle roller frame (2), needle roller (3) etc.Tripod string section (1) is made with hard materials such as ox bones, string is with the top of the tripod string section (1) of vertical mode and the triangle sliding organ sign indicating number P (as Fig. 2) that intersects at a point, shake fully with assurance dulcimer treble string, and can be transferred to the panel of dulcimer effectively; Its bottom is made a call to two apertures (or do two concave points, play the role of positioning) and is cooperated with needle roller frame (2).Needle roller frame (2) processes with the high-quality steel, and certain intensity is arranged, and its top has two register pins to cooperate with tripod string section (1) concave point.Needle roller (3) is made of side by side two needle rollers, plays stable, firm, the effect easily of sliding, with needle roller frame positive connection.The three forms a whole parts.The triangle sliding organ sign indicating number that the utility model is used is formed an organic whole.

More as can be seen, the height of supposing two kinds of qin sign indicating numbers is the same (in fact also being equally high) by Fig. 1 and Fig. 2, and so, string is the same with the angle α 1 and the α 2 of dulcimer panel.But more as can be seen, the angle ω (as Fig. 2) of the triangle sliding organ sign indicating number that the angle β (as Fig. 1) of string and cylindrical rolling music wire and string and the utility model use is different by Fig. 1 and Fig. 2! ω is obviously big a lot of than β!

We know that the string of dulcimer high pitch part stretches tight very tightly, and the vibration frequency of high pitch part string is than higher, and amplitude is smaller.Angle between string and the qin sign indicating number directly has influence on effective vibrations of string.Angle between string and the qin sign indicating number is little, the vibrations of string will be hindered (see figure 1) by the side S of qin sign indicating number, influence " freedom " vibrations of string, make that the pronunciation of high pitch part is insufficient, sound very vexed, opaque, do not have penetration power---just there has not been aesthetic feeling yet!

The utility model, all change the triangle sliding organ sign indicating number that the utility model uses into by cylindrical rolling music wire with treble, will make angle between string and the qin sign indicating number amplify a lot, reduce contact " face " of string and qin sign indicating number simultaneously, make contacting between string and the qin sign indicating number be reduced to a point.The vibrations that solved string are effectively shaken not " freedom ", inadequate problem by qin sign indicating number side obstruction, string.The tonequality and the tone color of dulcimer treble are significantly improved, the tonequality and the tone color of dulcimer improved a very big class.

For tonequality and the tone color of improving dulcimer better, the utility model has added high pitch sympathetic response post in the sound chamber of dulcimer.As shown in Figure 4, it is the cylindrical blank pipe (long 80～100 millimeters, 25～35 millimeters of diameters) of one section closed at both ends, and two ends are the semisphere inwall, and the both sides opposite side has the rectangle cylindrical void.The semisphere inwall is made at the two ends of high pitch sympathetic response post, is for the ease of acoustic reflection and reduces the generation (preventing noise) of higher hamonic wave; Two side hole, a short side is a sound inlet, long 15～20 millimeters of hole is wide 1.5 millimeters; A long side is a sender, and long 35～55 millimeters of hole is wide 1.5 millimeters.(by testing: the concrete size of high pitch sympathetic response post will be decided according to the concrete condition of dulcimer) is so that the sound that dulcimer sends is more melodious, more beautiful, charm, more interesting to listen to is more arranged.

Triangle sliding organ sign indicating number that the utility model uses and the high pitch sympathetic response post that in dulcimer sound chamber, adds, advantage such as it is ingenious, reasonable in design, simple in structure, easy to manufacture, easy to use to have imagination, is convenient to large-scale production, and result of use is obvious.Be convenient to promote.Be to solve problems such as dulcimer tonequality, tone color at present, one of the most effective, the most most economical method also is one of the simplest method.

Accompanying drawing:

Fig. 1 is cylindrical rolling music wire and string relative position synoptic diagram

Triangle sliding organ sign indicating number and string relative position synoptic diagram that Fig. 2 uses for the utility model

The triangle sliding organ sign indicating number synoptic diagram that Fig. 3 uses for the utility model

The high pitch sympathetic response post synoptic diagram that Fig. 4 uses for the utility model

Claims (4)

1. improve the beautiful sound dulcimer of high tone quality for one kind.It is characterized in that, changed the original cylindrical rolling music wire that uses of dulcimer treble into triangle sliding organ sign indicating number that the utility model uses; High pitch sympathetic response post has been installed in the sound chamber.

2. the beautiful sound dulcimer of a kind of improvement high tone quality as claimed in claim 1.It is characterized in that the triangle sliding organ sign indicating number (as Fig. 3) of use is made up of tripod string section (1), needle roller frame (2), needle roller (3) etc.

3. the beautiful sound dulcimer of a kind of improvement high tone quality as claimed in claim 1.It is characterized in that, the high pitch sympathetic response post (as Fig. 4) of use, the two ends inwall is a sphere, and middle both sides have the strong object of hollow circuit cylinder of rectangle cylindrical void, and its short-and-medium hole is a sound inlet, and slotted hole is a sender.

4. the beautiful sound dulcimer of a kind of improvement high tone quality as claimed in claim 1.It is characterized in that the high pitch sympathetic response post of use is installed in the inside in dulcimer sound chamber, the below of treble string.

Images