CN2106402U - Tone bridge structure (resonating means) for koto - Google Patents

Abstract

The utility model discloses a tone bridge structure (resonating means) for koto. The utility model is characterized in that two tone bridges are arranged on a sound box, and basic holes are arranged at the bottom side of the tone bridge, making the whole tone bridge have compression elasticity. The upper side of the basic hole is provided with tuning holes and high tone and bass holes. The sizes of tuning holes and high tone and bass holes are changed, the thickness of a specific part of the tone bridge is adjusted, the elasticity of the tone bridge can be changed, the link construction of a face sheet on the sound box and the tone bridge can have proper elasticity, the vibration of the strings arranged on the face sheet can be passed to the face sheet via posts, the tone bridge which is driven can vibrate at the same time, resonance in the sound box and proper high tone and bass sound volumes are generated and the playing effect is achieved.

Description

Tone bridge structure (resonating means) for koto

The utility model is a kind of sound bridge structure, specially refers to a kind of sound bridge structure of Zheng.

General Zheng is to set firmly panel on the audio amplifier of pedestal, in audio amplifier, set firmly the sound bridge, with sound bridge support panel, being ad hoc fashion with the wild goose post of predetermined number arranges and is fixed on the panel, the string of a musical instrument that will equate with wild goose post number is erected on the wild goose post again, so that during the springing string of a musical instrument, make vibration transfer arrive panel, and produce shake pronunciation altogether at audio amplifier.

The sound bridge of Zheng in the past, as shown in Figure 1, be to be fixed between panel and the base plate with short column, short column is the usefulness that fixed engagement provides support, yet the bonding station of short column and panel is formed with corner, be easy to cause stress to concentrate, and short column is the rigidity material, and elasticity is very little, and panel directly is fixed on the short column, elasticity is also bad, after the springing string of a musical instrument, string of a musical instrument vibration is delivered to panel via the wild goose post, and the frequency of panel vibration is very weak, therefore the volume deficiency that has audio amplifier vibrations pronunciation, off beat can't be clear, strong and weak sound can't be bright and clear, cause muddy shortcoming easily, using, inconvenient in the manufacturing.

Fundamental purpose of the present utility model is to provide a kind of sound bridge structure of Zheng, be in the audio amplifier of Zheng, to set up the sound bridge, the datum hole that sound bridge bottom side is provided with and the sound regulating hole of central part and high and low sound hole can make the sound bridge have the elasticity of compression, when the springing string of a musical instrument, the vibration transfer of the string of a musical instrument is to panel, the liaison bridge is also shaken, and reaches and shakes the effect that lingering sound is long, the sound penetration power is strong back and forth altogether.

The sound bridge structure of a kind of Zheng of the present utility model, the audio amplifier that mainly is pedestal is with base plate, panel and two affixed forming of side plate, two sound bridges are installed on the base plate of audio amplifier, sound bridge top support panel, the wild goose post of predetermined number is fixed on the panel, and the string of a musical instrument that equates with wild goose post number is erected on the wild goose post, so that when the springing string of a musical instrument, the vibration transfer that makes the string of a musical instrument is to panel, and generation shake pronunciation altogether in audio amplifier.

Principal character of the present utility model is: side is provided with two sound grooves in abutting connection with the position of side plate before and after the panel, and the sound groove is suitable radian and extends, and the mild shape of sound groove ground connects panel and side plate; The sound bridge is whole en plaque, and is fixed between base plate and the panel, and the sound bridge gently connects the sound groove of panel; The bottom side central authorities of sound bridge are provided with datum hole, and the datum hole upside is provided with sound regulating hole, and the both sides of sound regulating hole respectively are provided with high and low sound hole, and high and low sound hole is permeable type towards the place of Zheng side; Because said structure, the datum hole of sound bridge bottom side can make the sound bridge be compressed and have elastic force, the meat that changes the sound regulating hole both sides is thick, sound bridge elasticity can change, so that equivalent is adjusted the volume of high and low sound, the meat that changes high and low sound hole upside is thick, and the elasticity at the high and low position of sound bridge can be changed, so that adjust the volume of high and low sound.

According to said structure, counter plate is vertically exerted pressure, and panel can form crooked and press to the sound bridge indirectly, makes the whole longitudinal elasticity of panel better, and it is more powerful to make the string of a musical instrument be delivered to the vibration of panel.

Referring now to technology, the means of accompanying drawing by the furthermore bright realization above-mentioned purpose of preferred embodiment of the present utility model.Wherein,

Fig. 1 is the combination synoptic diagram of Zheng sound bridge in the past;

Fig. 2 is the Zheng phantom view of the utility model preferred embodiment;

Fig. 3 is the Zheng sound bridge and the panel combination synoptic diagram of the utility model preferred embodiment;

Fig. 4 is the Zheng sound bridge and the panel assembled sectional view of the utility model preferred embodiment;

Fig. 5 is the synoptic diagram of the Zheng sound bridge correction of the utility model preferred embodiment.

As Fig. 2, shown in Figure 3, the sound bridge of a kind of Zheng of the present utility model structure comprises pedestal 10, sound bridge 20, string of a musical instrument stationary installation 30.

See also shown in Figure 2, the central part of pedestal 10 is provided with audio amplifier 11, the bottom side of audio amplifier 11 is connected with base plate 12, biside plate 13 respectively is fixed in the front and back side of base plate 12, panel 14 is located at the upside of audio amplifier 11 and is erected at the top side of side plate 13, the front and back side of panel 14 is provided with two sound grooves 15 in abutting connection with the position of side plate 13, and sound groove 15 digs and is set as suitable radian, and formation panel 14 is mild with side plate 13 junctions and is connected; Zither tail 16 is positioned at the left side of audio amplifier 11, and zither head 17 is positioned at the right side of audio amplifier 11, and the right side that space bar 171 is fixed in audio amplifier 11 forms at interval; Qin lid 18 is articulated in the right-hand member of zither head 17 with hinge, but qin lid 18 is covering zither head 17 with being the deflection of loose-leaf shape.

Sound bridge 20 has two groups, is fixedly arranged on the both sides of audio amplifier 11 respectively, and as shown in Figure 3, sound bridge 20 is the integral slab sheet, and sound bridge 20 longitudinally is fixed between base plate 12 and the panel 14, and sound bridge 20 is bonded on the both sides of panel 12 and is gently connecting sound groove 15; Sound bridge 20 top sides are suitable radian and extend to form arc bridge floor 21, and the middle position of arc bridge floor 21 forms mild position 211, and panel 12 the arc bridge floor 21 of fitting with complying with vertical bow action; Datum hole 22 is located at the central authorities of sound bridge 20 bottom sides, make sound bridge 20 be arcuation and have suitable elasticity, sound regulating hole 23 is positioned at the upside of datum hole 22 and runs through sound bridge 20, high and low sound hole 24,25 is each positioned at the both sides of sound regulating hole 23, high and low sound hole 24,25 sides towards sound bridge 20 are permeable type, and the upside of high and low sound hole 24,25 is in abutting connection with panel 12 and form the suitably meat thick 241,251 of height.

See also Fig. 2, shown in Figure 3, string of a musical instrument stationary installation 30 is the wild goose posts 33 that are provided with front-axle beam 31, the back rest 32 and predetermined number at the end face of panel 14, one end of the string of a musical instrument 34 that equates with wild goose post 33 numbers is fixed in zither tail 16, the other end of the string of a musical instrument 34 penetrates zither head 17, and respectively be connected with zither spoon 35, zither spoon 35 is fixed on the space bar 171, the string of a musical instrument 34 is set up on the corresponding wild goose post 33, and in the past, the back rest 31,32 fixed, during the springing string of a musical instrument, the vibration transfer that makes the string of a musical instrument 34 is to panel 14, and generation shake pronunciation altogether in audio amplifier 11.

As shown in the above description, sound bridge 20 of the present utility model is support panel 14 not only, the compressive strength of panel 14 is increased, and make panel 14 accept the pressure of wild goose post 33 transmission vibrations, the 34 caused vibrations of the springing string of a musical instrument are delivered to panel 14 via wild goose post 33, make panel 14 produce appropriate frequency and the vibration of time, and generation shake to pronounce to play altogether in audio amplifier 11.

What is particularly worth mentioning is that, the sound groove 15 of panel 14 reduces integral rigidity, as shown in Figure 4, just can make panel 14 produce vibrations with very little pressure, when panel 14 according to arc bridge floor 21 pressings of sound bridge 20 and glued together affixed after, as shown in Figure 3, the mild position 211 of arc bridge floor 21 has mild radian and forms slightly recessed space, making panel 14 must compress bending is crimped on the mild position 211, panel 14 can produce because of distortion and give elastic force, the elastic force of panel 14 distortion can compress the mild position 211 of sound bridge 20, datum hole 22 structures of while sound bridge 20 make sound bridge 20 be arch and bridge, sound bridge 20 is compressed, just to datum hole 22 compressions and generation elastic force, so the elastic force of panel 14 distortion can compress the mild position 211 of sound bridge 20, sound bridge 20 is and is compressed and form bending stress, compresses datum hole 22 indirectly after sound bridge 20 pressurizeds and forms elastic force.

Panel 14 of the present utility model engages sound bridge 20 arcly, formation compresses elastic force, the strength of the vibrations generation of panel 14 is added in again on the sound bridge 20, so the vibrations of panel 14 are easy to drive the motion of sound bridge 20, and utilize sound bridge 20 itself to have elasticity, sound bridge 20 produces pressing action and is delivered to base plate 12, and the shake that upsprings again so back and forth forms shake pronunciation altogether in audio amplifier 11; Because engaging with sound bridge 20 to produce, panel 14 gives elastic force, the sound groove 15 that reaches panel 14 reduces integral rigidity, and cooperates the elasticity of sound bridge 20, makes panel 14 connection sound bridges 20 be integrative-structure and is easy to together with earthquake motion, and the good springiness of panel 14, vibrations cause the lingering sound that shakes altogether back and forth long often, and the sound penetration power is strong, can increase the transmission of musical sound, and making off beat clear, forte is bright and clear, can be not muddy.

The elasticity of the utility model sound bridge 20 can be adjusted by the size of sound regulating hole 23 and high and low sound hole 24,25, as shown in Figure 5, adjust the elasticity at sound bridge 20 each position, just can adjust the vibrations of each range and reach the state of balance, and reach and make that off beat is clear, forte is bright and clear, can be muddy; If finishing strengthens high sound hole 24, make the meat thick 241 of high sound hole 24 upsides reduce (shown in imaginary line), the meat thick 241 of so high sound hole 24 upsides just has preferable elasticity, when dialling the bullet string of a musical instrument, the reciprocal vibrations meeting of panel 14 of high sound hole 24 positions that is positioned at sound bridge 20 is bigger, and just the high pitch volume that is produced in the audio amplifier 11 can increase; If will hang down sound hole 25 strengthens, to cause the meat thick 251 of low sound hole 25 upsides to reduce (shown in imaginary line) so, at this moment, the meat thick 251 of low sound hole 25 upsides has preferable elasticity, dial when playing the string of a musical instrument, the reciprocal vibrations meeting of panel 14 of low sound hole 251 positions that is positioned at sound bridge 20 is bigger, and just the bass volume that is produced in the audio amplifier 11 can increase; If the volume of high bass wants equivalent to strengthen, sound regulating hole 23 can be enlarged (shown in imaginary line) so, the meat thick 41,45 of sound regulating hole 23 both sides is diminished, the elasticity of sound bridge 20 integral body is increased, when panel 14 drives 20 vibrations of sound bridge so, the reciprocal vibrations meeting of the high and low sound of sound bridge 20 is bigger, and at this moment volume is grand, is fit to the performance in outdoor or large space place.

In sum, the sound bridge structure of Zheng of the present utility model, be in audio amplifier, to set up the sound bridge, the novel structure that the datum hole of sound bridge bottom side has the elasticity of compression, the sound regulating hole of sound bridge and the size of high and low sound hole are repaired change, just make the thick change of meat of the privileged site of sound bridge, make panel connect the sound bridge integratedly, can drive panel at an easy rate shakes together with the sound bridge, make the vibration of the string of a musical instrument be delivered to panel via the wild goose post, the good vibration of generation produces the volume pronunciation performance of shaking altogether and producing an amount of high and low sound in audio amplifier.

Claims (2)

1, a kind of sound bridge of Zheng structure, comprise pedestal, be provided with audio amplifier in the described pedestal, described audio amplifier forms so that base plate, panel and biside plate are affixed, the base plate of described audio amplifier is installed with two sound bridges, the top support of described sound bridge described panel, is installed with the wild goose post on the described panel, and described wild goose post is put on the shelf and is provided with the string of a musical instrument that equates with described wild goose post number; It is characterized in that: the front and back side of described panel is provided with two sound grooves in abutting connection with the position of described side plate, and described sound groove is arcuation and is gently connecting described panel and described side plate; Described sound bridge is the integral slab sheet, and described sound bridge is fixed between described base plate and the described panel, and described sound bridge is gently connecting the sound groove of described panel; The bottom side central authorities of described sound bridge are provided with datum hole, and the upside of described datum hole is provided with sound regulating hole, and the both sides of described sound regulating hole respectively are provided with high and low sound hole, and described high and low sound hole is permeable type towards the both sides of described sound bridge; Described sound bridge is arch, in the time will changing sound regulating hole big or small, the meat that can adjust described sound bridge both sides is thick, the big I that changes sound regulating hole changes the elasticity of described sound bridge, and then adjust the volume of described Zheng, in the time will changing described high and low sound hole big or small, the meat that can adjust described sound bridge upside is thick, the change of described high and low sound hole can make the elasticity at the high and low position of described sound bridge change, and then adjusts the high and low sound volume of described Zheng.

2, the sound bridge of Zheng as claimed in claim 1 structure is characterized in that: extend to form bridge shape end face the top side arc of described sound bridge, be formed with mild position on the described bridge shape end face, the described mild position described panel of fitting.

Images