CN217333611U - Head-free piano bridge capable of rapidly switching suspension state - Google Patents

Abstract

The utility model discloses a headless piano bridge capable of switching suspension state rapidly, which comprises a string pulling assembly, a spring frame assembly and a pressure balance lock assembly, wherein the spring frame assembly is hinged at the bottom of the string pulling assembly, the pressure balance lock assembly is connected at one side of the bottom of the string pulling assembly, a pressure balance lock block of the pressure balance lock assembly is fixed at the lateral part of the spring frame assembly, a tremolo rocker is arranged at the top of the string pulling assembly and is arranged in a rocker threaded hole on the string pulling assembly through thread fit; the pressure balance lock assembly is characterized in that the vibrato rocker is concentrically driven to rotate through the rotation of the vibrato rocker, the inclined plane of the vibrato rocker is acted on a shifting block of the pressure balance lock assembly, and the pressure lock tongue is matched with the pressure balance lock groove. The utility model discloses have and blindly push away the function that realizes switching the fixed state and the suspension state of musical instrument bridge fast, reduce spring resonance, lock headless musical instrument tremolo musical instrument bridge balanced position fast, increased substantially availability factor and use value experience.

Description

Head-free piano bridge capable of rapidly switching suspension state

Technical Field

The utility model relates to a headless guitar bridge technical field especially relates to a fast switch over suspension's headless guitar bridge.

Background

The bridge is a device commonly used by stringed instruments such as guitars, and the headless bridge can be divided into two categories according to functionality, one category is a fixed headless bridge, and the other category is a tremolo type headless bridge, wherein the tremolo type headless bridge is a device which is used for controlling the suspension state of the bridge manually, changing the tension change of strings in a linkage manner and emitting corresponding continuous and alternate special pitch changes.

The existing fixed type headless piano bridge is a device fixedly arranged on a piano body, and most of the existing fixed type headless piano bridges are in an organization structure which is fixedly arranged in the piano body by screws. Its advantage is that the structure is durable firm, and difficult deformation, the tone quality is stable durable strong, and the lingering is longer, and resonance is better, can quick tuning, can be fast whole or solitary change string, can not influence the pitch standard of its cosine after the string fracture. The disadvantage is that the suspension state of the bridge can not be changed, and further diversified tremolo effect can not be generated, and the instrument has less expressive force than a tremolo type capless bridge, such as a strandberg original bridge type organ of a fixed capless bridge.

The working standard of the existing tremolo type capless organ bridge, such as a strandberg EGS tremolo bridge type organ, is a balanced suspension state, and the working standard is mainly realized by balancing the tension of the whole string and the tension of a tension spring. The main supporting structure is realized by taking two supporting structures which are arranged in the musical instrument body and cannot be adjusted in height as fulcrums, the shaft rod parts extending out of two sides of the musical instrument bridge part are inserted into pin holes of the supporting points, and the strings and the tension of the tension springs enable the strings and the tension springs to suspend to reach a standard working state. The musical instrument with the structure has the advantages that diversified tremolo effects can be generated during playing, and the expressive property of the musical instrument is improved. The disadvantage is that when the tremolo bridge is used at high frequency, the situation of unsmooth return to the balance position is easily generated because the contact position of the fulcrum is in a hard friction relation, and the connection relation influences the standard pitch requirement of playing. Because the design structure can not fix in balanced position itself, easily produce the bad resonance of spring when playing, also can not whole set or independent change string in addition, therefore can not the quick adjustment pitch, any string fracture can all influence the standard pitch of other strings moreover.

In addition, the existing guitar bridge structure has technical defects in the aspects of replacing strings, adjusting octave intonation, string height, device resonance, device adjustment, suspension state switching, use safety and the like.

(1) Aspect of replacing strings

A. The guitar equipped with tremolo type headless bridge cannot replace strings as a whole, and the traditional mode is to disassemble and replace the guitar independently (because the tension of the tension spring of the tremolo type headless bridge is balanced with the tension of the whole strings, the whole disassembly and assembly can cause the bridge to collapse, the situation of clamping fingers by mistake or damaging the body occurs,

B. the operation requirement for adjusting the balance position of the bridge is higher, and the tension of the tension spring, the acting force of the whole string and the balance position of the bridge are considered. It is very difficult for beginners to control.

C. The one end that needs the string when partly headless musical instrument bridge installation string is by the centre gripping inside the musical instrument bridge, and the beginner is difficult to master the dynamics of jackscrew centre gripping string, and the dynamics is too big easy to slide the silk, and the dynamics undersize easily produces the centre gripping insecure, leads to the string departure, and the dynamics that the first string was pressed from both sides of musical instrument is also difficult to master, and the dynamics is too big easy to slide the silk and sink or press from both sides disconnected musical instrument string, and dynamics undersize centre gripping is insecure.

D. When the player needs to have the requirements of lowering and tuning the strings, the double-rocker bridge is complex to adjust and needs to be completely adjusted again. Is not easy to operate, consumes a large amount of time and is inconvenient to use.

E. Although the fixed type capless piano bridge is not easy to generate the above structural problems, the fixed type capless piano bridge lacks dynamic pitch expressive force and has no quick tremolo effect in the playing and using process.

(2) Pitch adjustment

Because under the whole tension effect of string with bridge spring tension balance, the position of bridge and body keep flat are the best state of tremolo bridge, the prerequisite is that every string all need keep at required standard pitch, because between every string, be the three interact between all strings and the bridge extension spring tension, the relation of tension balance, so loaded down with trivial details lengthy of this accommodation process, consume the tuning time in a large number. The traditional string tuning method is that an old string is disassembled to replace a new string, then the string is tuned into a standard pitch, and the step needs to be repeated for several times for several strings, in the second situation, because the diameter specification of the string is different and the integral thickness is different, when the integral string is changed into a string with a thinner or thicker specification, the angle of the bridge can float up and down in different degrees due to the change of the integral tension of the string, a balance relation needs to be established again, the intonation of each string needs to be debugged and corrected again, in the third situation, when a player needs to perform the tuning down, the structural adjustment needs to be performed again, so that the time is consumed, great inconvenience is brought to the performance, and meanwhile, in each situation, the suspension state of the bridge is difficult to be adjusted under the condition that the tone of an empty string is good.

(3) Device resonance

Tremolo formula capless musical instrument bridge has many extension springs to connect the musical instrument bridge, and the mechanical structure of string is connected to the musical instrument bridge, accomplishes the pulling force through the tractive screw between regulation extension spring and the musical instrument body and adjusts, and when the string produced vibrations, this kind of vibrations can be transmitted for the extension spring through metal construction's musical instrument bridge, makes the passive resonance of extension spring, and this kind of resonance can counteract is at the string, impairs the quality of musical tone.

(4) Device adjustment

The bridge of traditional tremolo formula headless musical instrument bridge is that the screw structure fixes on the bridge base, consequently can't adjust the string height alone, can produce the even influence through adjusting the bridge fulcrum screw, produces the holistic lift of bridge, loses one another in consideration. When performing octave pitch adjustment of the strings. Every time a bridge is moved, the mechanical arrangement of the cosine of the bridge and the suspension state of the bridge are influenced, the linkage structure greatly increases the adjusting difficulty, and the operation is more difficult for beginners.

(5) Suspended state switching

Several kinds of current devices, tremenol-No. steenberger tran tremolo, can all realize the switching of fixed bridge state and the double swing suspension bridge state, but all need complicated operation, tremenol-no at first needs the relative position of installation adjustment rocker and lock, then at spring compartment installation and need manual mechanical regulation, can not realize fast switch over when playing, steenberger tran tremolo's bridge needs manual accurate alignment screens locking when having the switching demand, it is very high to rocker and kayser relative position cooperation and the manual alignment cooperation of spring bolt and screens position to require, the difficult alignment of beginner is locked the operation smoothly. Both structures cannot achieve simple operation and fast switching of the floating state in a blind push mode.

(6) Safety in use

Because the suspension position of the tremolo type bridge is not provided with a reliable auxiliary balance lock in the using process, the tremolo type bridge is easy to hurt hands, suddenly breaks strings or dislocates the device when adjusting or changing the strings, has potential hidden dangers and is unstable in the using process, and has certain potential safety hazards in the structural design.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the above-mentioned technical problem of tremolo formula headless musical instrument bridge, provide one kind and can realize the headless musical instrument bridge of fast switch over suspended state through blind the pushing away.

In order to achieve the above object, the present invention provides the following technical solutions:

a capless piano bridge capable of quickly switching suspension state comprises a string pulling assembly, a spring frame assembly and a pressure balance lock assembly, wherein the spring frame assembly is hinged to the bottom of the string pulling assembly; the tremolo rocker is concentrically driven to rotate by the rotation of the tremolo rocker, the inclined plane of the tremolo rocker inclined plane acts on the shifting block of the pressure balance lock assembly, and the pressure lock tongue is matched with the pressure balance lock locking groove of the pressure balance lock assembly, so that the tremolo bridge balance position is locked.

Further, the string pulling assembly comprises: the spring assembly is hinged to the bottom of the lower plate, the pressure balance lock assembly is connected to one side of the bottom of the lower plate, the spring front plate is connected with the lower plate and extends into the spring assembly, a sliding groove of the string pulling sliding block is formed after the lower plate is connected and matched with the upper plate, the threaded end of the sliding block screw rod is installed in a matched mode with a sliding block threaded hole of the string pulling sliding block, and the other end of the sliding block screw rod is installed in a matched mode with the knurled nut.

Furthermore, the lower plate and the upper plate are in screw connection and matching through the upper plate and the lower plate, a sliding groove is formed after connection and matching, the sliding groove is a stroke sliding groove of the string pulling sliding block, and the front end of the string pulling block is provided with a sliding block string clamping hole which is matched for use when the strings are installed.

Furthermore, the spring frame assembly is hinged with the string pulling assembly through a shaft, hinge bearing holes of the spring frame assembly and the string pulling assembly are formed in two sides of the spring frame assembly, a bearing is installed inside the spring frame assembly, the shaft is installed and connected in the hinge bearing holes of the spring frame assembly and the string pulling assembly through the bearing and a clamp spring in sequence, and the end part of the shaft is connected with a bearing cover.

Furthermore, a spring rear push plate, a spring push rod, a spring and a spring front plate are assembled in the spring frame assembly; the upper end of the spring front plate is fixed at the bottom of the string pulling assembly, one end of the spring push rod penetrates through a spring push rod mounting through hole of the spring frame assembly and then is mounted and matched with a knurled nut outside the spring frame assembly, a rod body of the spring push rod is assembled with a rear spring push plate through threads, the rod body of the spring push rod sequentially penetrates through a rear spring push plate threaded hole and a push spring, and the other end of the spring push rod is adjacent to the spring front plate.

And further, the knurled nut jackscrew is concentrically matched and installed with the spring push rod after passing through the spring push rod installation through hole of the spring frame assembly.

Further, a bridge is installed on a spring support of the spring frame assembly, the height is adjusted through matching of a bridge height adjusting jackscrew and a bridge height adjusting jackscrew hole of the bridge, and a bridge pulley is assembled in the bridge through a bridge pulley installing shaft and a bridge pulley installing shaft hole.

Furthermore, the pressure balance lock assembly comprises a pressure lock support frame, a pressure lock shaft, a torsional spring, a shifting block, a pressure lock bolt and a pressure balance lock block, the pressure lock support frame is fixed on one side of the bottom of the string pulling assembly, one end of the pressure lock shaft is matched with the torsional spring and the shifting block in a coaxial hinged mode, and the other end of the pressure lock shaft is coaxially hinged to the pressure lock support frame after penetrating through the pressure lock bolt.

Furthermore, a rocker threaded hole for screwing the tremolo rocker into is formed on one side of the lower plate of the string pulling assembly; a shrinkage sleeve is arranged in the tremolo rocker, and the knurled nut is matched with a threaded hole of the rocker for use.

Furthermore, the pressure balance locking block is fixed on the side part of the spring bracket assembly, and a pressure balance locking groove matched with the pressure lock tongue is formed in the pressure balance locking block.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a no first musical instrument bridge of fast switch over suspension state changes the mechanical structure of traditional musical instrument bridge, has the function that can blind push away the fixed state that realizes switching the musical instrument bridge fast and suspension state, reduces spring resonance, locks no first musical instrument tremolo musical instrument bridge balanced position fast, and the no first musical instrument bridge device of comparison now has improved availability factor and use value experience in the aspect of trading string, tuning, resonance, regulation, switching state to and use security etc. by a wide margin.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a perspective view of a capless piano bridge for fast switching a suspension state provided by the embodiment of the utility model.

Fig. 2 is an explosion diagram of a capless piano bridge in a fast switching suspension state provided by the embodiment of the utility model.

FIG. 3 is a diagram illustrating a forward leaning state of the string pulling assembly relative to the spring support assembly when the bridge according to the embodiment of the present invention is in operation;

FIG. 4 is a diagram illustrating the balance state of the string pulling assembly relative to the spring support assembly when the bridge according to the embodiment of the present invention is in operation;

FIG. 5 is a diagram illustrating a backward tilting state of the string pulling assembly relative to the spring support assembly when the bridge according to the embodiment of the present invention is in operation;

FIG. 6 is a diagram illustrating a forward leaning state of the string pulling assembly relative to the spring support assembly when the bridge according to the embodiment of the present invention is not in operation;

fig. 7 is a diagram illustrating a balance state of the string pulling assembly relative to the spring support assembly when the bridge according to the embodiment of the present invention is not in operation;

FIG. 8 is a diagram illustrating a tilted back state of the tailpiece assembly relative to the spring support assembly when the bridge according to the embodiment of the present invention is not in operation;

description of reference numerals:

100. a string pulling assembly; 101. an upper plate; 102. a lower plate; 103. the upper plate and the lower plate are connected with screws; 104. the upper plate and the lower plate are connected with the through hole; 105. the lower plate is connected with the spring front plate through holes; 106. the spring front plate is connected with a screw; 107. the lower plate is connected with the pressure balance lock assembly through hole; 108. a pressure balance lock connecting screw; 109. a spring front plate; 110. a spring front plate threaded hole; 111. a rocker threaded hole; 112. a lower plate shaft hole; 113. a shaft; 114. a bearing; 115. a clamp spring; 116. a bearing cap; 117. a string pulling slide block; 118. the slide block is provided with a string clamping hole; 119. a threaded hole of the sliding block; 120. a slider screw; 121. a through hole of the upper plate slide block screw rod; 122. knurling the nut; 123. knurling a nut jackscrew;

200. a spring frame assembly; 201. the spring frame assembly is hinged with the pull string assembly through a bearing hole; 202. a spring; 203. a spring rear push plate; 204. a spring rear push plate threaded hole; 205. the spring push rod of the spring frame assembly is provided with a through hole; 206. a spring push rod; 207. knurling the nut; 208. knurling a nut jackscrew hole; 209. knurling a nut jackscrew; 210. the spring frame assembly is locked in the mounting hole; 211. carrying out bridge connection; 212. a bridge pulley; 213. a bridge pulley mounting shaft; 214. the bridge pulley is provided with a shaft hole; 215. adjusting jackscrews for the height of the bridge; 216. a spring support;

300. a pressure balance lock assembly; 301. a pressure lock support frame; 302. a threaded hole of a pressure lock support frame; 303. a pressure lock support frame shaft hole; 304. a pressure lock shaft; 305. a torsion spring; 306. shifting blocks; 307. a torsional spring shifting block mounting hole; 308. a pressure lock tongue; 309. a pressure bolt shaft hole; 310. a pressure bolt threaded hole; 311. the pressure lock tongue clasps the screw; 312. a pressure balancing locking block; 313. a pressure balance lock locking groove; 314. the pressure balance lock is provided with a through hole; 315. a pressure balance lock mounting screw; 316. a tremolo rocker; 317. a tremolo rocker threaded section; 318. a tremolo rocker inclined plane section; 319. knurling the nut; 320. and (4) shrinking the sleeve.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

See FIGS. 1-2;

the utility model provides a pair of switch over suspension's headless musical instrument bridge fast, including string pulling assembly 100, spring frame assembly 200 and pressure balance lock assembly 300, spring frame assembly 200 articulates in the bottom of string pulling assembly 100, and pressure spring tongue 308 of pressure balance lock assembly 300 is connected in one side of the bottom of string pulling assembly 100, and pressure balance lock piece 312 of pressure balance lock assembly 300 is fixed in the lateral part of spring frame assembly 200, and tremolo rocker 316 is installed in the top of string pulling assembly 100 to install in rocker screw hole 111 on string pulling assembly 100 through screw-thread fit; the rotation of the tremolo rocker 316 concentrically drives the inclined plane section 318 of the tremolo rocker to rotate, the inclined plane of the inclined plane section 318 of the tremolo rocker acts on the shifting block 306 of the pressure balance lock assembly 300, and the pressure bolt 308 is matched with the locking groove 313 of the pressure balance lock assembly 300, so that the balance position of the tremolo bridge is locked.

Specifically, the pulling string assembly 100 includes: an upper plate 101, a lower plate 102, a string pulling slider 117, a slider screw 120, a knurled nut 122 and a spring front plate 109; the lower plate 102 has an upper and lower plate connecting through hole 104, a lower plate and spring front plate connecting through hole 105, and a lower plate and pressure balance lock assembly connecting through hole 107, and has a rocker screw hole 111 and a lower plate shaft hole 112 formed at one side thereof.

The spring frame assembly 200 is hinged to the bottom of the lower plate 102, specifically, the spring frame assembly 200 is hinged to the string pulling assembly 100 through a shaft 113, hinge bearing holes 201 for the spring frame assembly and the string pulling assembly are formed in two sides of the spring frame assembly 200, a bearing 114 is installed inside the spring frame assembly 200, the shaft 113 is installed and connected in the hinge bearing holes 201 for the spring frame assembly and the string pulling assembly through the bearing 114 and a snap spring 115 in sequence, and a bearing cover 116 is connected to the end of the shaft 113.

The pressure balance lock assembly 300 is connected to the bottom side of the lower plate 102 through the pressure balance lock connection screw 108 and the lower plate and pressure balance lock assembly connection through hole 107.

The spring front plate 109 has a front spring plate screw hole 110 formed at the upper end thereof, and the front spring plate 109 and the lower plate 102 are connected by the front spring plate screw 106 and the lower plate and front spring plate connection through hole 105 and extend into the spring assembly 200.

The lower plate 102 is connected with the upper plate 101 by the upper and lower plate screws 103 and the upper and lower plate connecting through holes 104. The lower plate 102 is matched and connected with the upper plate 101 to form a sliding groove of the string pulling sliding block 117, the sliding groove is a stroke sliding groove of the string pulling sliding block 117, the threaded end of a sliding block screw rod 120 is matched and installed with a sliding block threaded hole 119 of the string pulling sliding block 117, the other end of the sliding block screw rod 120 is matched and installed with a knurled nut 122 through an upper plate sliding block screw rod through hole 121 of the upper plate 101, and a knurled nut jackscrew 123 is a fastening device on the knurled nut 122. The front end of the string pulling block 117 is provided with a slider string clamping hole 118 which is matched for use when a string is installed.

The spring frame assembly 200 is internally provided with a spring rear push plate 203, a spring push rod 206, a spring 202 and a spring front plate 109; the upper end of the spring front plate 109 is fixed at the bottom of the string pulling assembly 100.

A spring frame assembly spring push rod mounting through hole 205 for mounting a spring push rod 206 is formed on the surface of the rear wall of the spring frame assembly 200, and one end of the spring push rod 206 penetrates through the spring frame assembly spring push rod mounting through hole 205 and then is mounted and matched with a knurled nut 207 outside the spring frame assembly 200; specifically, a knurled nut jackscrew 209 passes through a spring push rod mounting through hole 208 of the spring frame assembly, and then the knurled nut 207 and the spring push rod 206 are concentrically mounted in a matching manner; the body of rod and the spring back push pedal 203 of spring push rod 206 screw assembly, the body of rod of spring push rod 206 passes push pedal screw hole 204 and push spring 202 behind the spring in proper order, and the other end and the spring front bezel 109 of spring push rod 206 face each other, drive spring push rod 206 through adjusting knurled nut 207 and rotate, and the spring back push pedal 203 that drives spring push rod 206 in step and then promote compression spring 202, and then change pressure and make the bridge adjust to balanced state.

The bridge 211 is mounted on the spring support 216 of the spring frame assembly 200, and height is adjusted by fitting the bridge height adjusting jack 215 and the bridge height adjusting jack hole of the bridge 211, and the bridge pulley 212 is fitted in the bridge 211 through the bridge pulley mounting shaft 213 and the bridge pulley mounting shaft hole 214.

The pressure balance lock assembly 300 comprises a pressure lock support frame 301, a pressure lock shaft 304, a torsion spring 305, a shifting block 306, a pressure bolt 308 and a pressure balance lock block 312; wherein:

the pressure lock support frame 301 is fixed on one side of the bottom of the string pulling assembly 100, and specifically, a pressure lock support frame threaded hole 302 at the upper end of the pressure lock support frame 301 is installed in cooperation with an installation hole on the bottom surface of the string pulling assembly 100.

The pressure lock support frame 301 is provided with a pressure lock support frame shaft hole 303, one end of the pressure lock shaft 304 is matched with the coaxial hinged torsion spring 305 and the shifting block 306, and the other end of the pressure lock shaft coaxially penetrates through the pressure lock tongue shaft hole 309 of the pressure lock tongue 308 and then is hinged in the pressure lock support frame shaft hole 303, and is screwed into the pressure lock tongue threaded hole 310 through the pressure lock tongue clasping screw 311 for fastening. Specifically, one end of the torsion spring 305 is close to the bottom of the lower plate 101, and the other end is inserted into the torsion spring paddle mounting hole 307.

A rocker threaded hole 111 for screwing the tremolo rocker 316 into is formed on one side of the lower plate 102 of the string pulling assembly 100; a shrinkage sleeve 320 is arranged in the tremolo rocker 316, and a knurled nut 319 is matched with the rocker threaded hole 111 for use.

The pressure balance lock block 312 is fixed on the side of the spring support assembly 200, and a pressure balance lock catch groove 313 matched with the pressure bolt 308 is formed on the pressure balance lock block. Further, the pressure balance lock block 312 is fixed in the spring frame assembly locking mounting hole 210 on the side of the spring frame assembly 200 by the pressure balance lock mounting screw 315 and the pressure balance lock mounting through hole 314.

Specifically, one end of a tremolo rocker threaded section 317 on the tremolo rocker 316 is screwed into the rocker threaded hole 111, and the tremolo rocker 316 and the shifting block 306 are matched after being screwed to a proper position and direction, so that the tremolo rocker 316 and the shifting block 306 are matched in a moving way.

When the tremolo rocker 316 is rotated, it moves concentrically with the tremolo rocker ramp section 318, and when the tremolo rocker ramp section 318 rotates to a position where it does not interfere with the paddle 306:

as shown in fig. 4, when the concave surface of the inclined plane section 318 of the tremolo lever rotates to the position of the toggle block 306, the torsion spring 305 on the pressure lock shaft 304 moves around the pressure lock shaft 304, and at the same time, the torsion spring 305 on the pressure lock shaft 304 starts to release the torsion force, the toggle block 306 and the coaxial pressure bolt 308 are gradually released synchronously, and when the concave surface of the inclined plane section 318 of the tremolo lever rotates to the position of the toggle block 306 as shown in fig. 4, the action is completed.

Due to the uncertainty of the spring state, the pressure latch 308 has three positions relative to the pressure balance lock position slot 313 on the spring frame assembly 200:

in the first situation, as shown in fig. 3, when the string pulling assembly 100 is in a forward tilting state relative to the spring support assembly 200, the pressure bolt 308 releases the pressure to the limit and stays at the upper slope of the pressure balance lock block 312, the whole tension of the string is greater than the pressure of the spring 202, the pressure bolt 308 is locked into the pressure balance lock slot 313 on the pressure balance lock block 312 in fig. 4 by pulling the tremolo rocker 316, and the bridge is in a locking balance state.

In the second situation, as shown in fig. 4, when the string pulling assembly 100 is in a balanced state with respect to the spring support assembly 200, the pressure lock tongue 308 stays in the pressure balance lock slot 313 on the pressure balance lock block 312, and the state of fig. 4 is reached, and the string tension is equal to the pressure of the spring 202, and the bridge is in a locked balanced state.

In the third situation, as shown in fig. 5, when the string pulling assembly 100 is in a backward tilting state relative to the spring support assembly 200, the pressure bolt 308 is released to the limit by pressure and stays at the downward slope of the pressure balance lock block 312, the whole tension of the string is smaller than the pressure of the spring 202, and the pressure bolt 308 is locked into the pressure balance lock position groove 313 on the pressure balance lock block 312 in fig. 4 by pressing the tremolo rocker 316, and the bridge is in a locking balance state.

The positions shown in fig. 3 and 5 are caused by the pressure difference between the overall tension of the strings and the spring pressure, and the pressure bolt 308 is locked into the pressure balance lock locking groove 313 on the pressure balance lock block 312 by pulling or pressing the tremolo rocker 316, so that the overall bridge reaches the locked balance position.

In addition, in the state of the locking bridge balance, after the strings are tuned to the pitch required by the musician, the tremolo rocker 316 is rotated to the state shown in fig. 7, the tremolo rocker 316 is rotated, the convex surface of the inclined surface section 318 of the tremolo rocker starts to push the shifting block 306 and further to synchronize the pressure lock shaft 304 and the pressure lock tongue 308, the pressure lock tongue 308 is gradually separated from the pressure balance lock locking groove 313, the pressure lock tongue 308 is separated from the pressure balance lock locking groove 313, at this time, due to the uncertainty of the spring state, as shown in fig. 6, 7 and 8, the three states are three position diagrams of the balance lock opening, when the pull-down string assembly 100 rotates in the rotatable space around the hinge shaft 113, the pressure lock tongue 308 does not generate any interference with the pressure balance lock locking groove 313, the state is the state of the bridge balance lock not working, at this time, the three states are realized by adjusting the knurled nut 122 (the knurled nut 122 is positioned at one end of the spring support spring assembly spring installation push rod through hole, ) The spring push rod 206 is driven, the spring 202 is pushed by the linkage spring rear push plate 203 to change the position, and then the pressure is changed, so that the bridge is adjusted to a balance state without locking interference.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims (10)

1. A capless piano bridge capable of switching suspension state rapidly is characterized by comprising a string pulling assembly, a spring frame assembly and a pressure balance lock assembly, wherein the spring frame assembly is hinged to the bottom of the string pulling assembly; the tremolo rocker is concentrically driven to rotate by the rotation of the tremolo rocker, the inclined plane of the tremolo rocker inclined plane acts on the shifting block of the pressure balance lock assembly, and the pressure lock tongue is matched with the pressure balance lock locking groove so as to lock the tremolo bridge balance position.

2. The capless piano bridge of claim 1, wherein said string pulling assembly comprises: the spring assembly is hinged to the bottom of the lower plate, the pressure balance lock assembly is connected to one side of the bottom of the lower plate, the spring front plate is connected with the lower plate and extends into the spring assembly, the lower plate is connected and matched with the upper plate to form a sliding groove of the string pulling sliding block, the threaded end of the sliding block screw rod is installed in a matched mode with a sliding block threaded hole of the string pulling sliding block, and the other end of the sliding block screw rod is installed in a matched mode with the knurled nut.

3. The capless piano bridge capable of rapidly switching suspension state according to claim 2, wherein the lower plate and the upper plate are in screw connection fit through the upper plate and the lower plate, a sliding groove is formed after the screw connection fit, the sliding groove is a stroke sliding groove of the string pulling slider, and the front end of the string pulling block is provided with a slider string clamping hole which is matched for use when a string is installed.

4. The capless piano bridge capable of rapidly switching suspension state according to claim 1, wherein the spring frame assembly is hinged with the string pulling assembly through a shaft, the spring frame assembly and the string pulling assembly are hinged with bearing holes at two sides of the spring frame assembly, a bearing is installed inside the spring frame assembly, the shaft is installed and connected in the spring frame assembly and the string pulling assembly hinged with bearing holes through the bearing and a clamp spring in sequence, and the end part of the shaft is connected with a bearing cover.

5. The capless piano bridge of rapidly switching suspension state according to claim 1, wherein the spring frame assembly is internally equipped with a spring rear push plate, a spring push rod, a spring and a spring front plate; the upper end of the spring front plate is fixed at the bottom of the string pulling assembly, one end of the spring push rod penetrates through a spring push rod mounting through hole of the spring frame assembly and then is mounted and matched with a knurled nut outside the spring frame assembly, a rod body of the spring push rod is assembled with a rear spring push plate through threads, the rod body of the spring push rod sequentially penetrates through a rear spring push plate threaded hole and a push spring, and the other end of the spring push rod is adjacent to the spring front plate.

6. The capless piano bridge of claim 5, wherein the knurled nut jackscrew passes through the spring push rod mounting through hole of the spring frame assembly and then the knurled nut and the spring push rod are concentrically mounted in a matching manner.

7. The endless bridge for fast switching of a floating state according to claim 1, wherein a bridge is mounted on the spring bracket of the spring frame assembly, and height is adjusted by fitting a bridge height adjusting jack and a bridge height adjusting jack hole of the bridge, and the bridge pulley is fitted in the bridge by a bridge pulley mounting shaft and a bridge pulley mounting shaft hole.

8. The capless piano bridge capable of switching suspension state rapidly as claimed in claim 1, wherein the pressure balance lock assembly comprises a pressure lock support frame, a pressure lock shaft, a torsion spring, a shifting block, a pressure lock tongue and a pressure balance lock block, the pressure lock support frame is fixed on one side of the bottom of the string pulling assembly, one end of the pressure lock shaft is matched with the coaxial hinged torsion spring and the shifting block, and the other end of the pressure lock shaft is coaxially hinged on the pressure lock support frame after passing through the pressure lock tongue.

9. The headless piano bridge for rapidly switching the floating state according to claim 1, wherein a rocker screw hole for screwing the tremolo rocker into is formed at one side of the lower plate of the string pulling assembly; a shrinkage sleeve is arranged in the tremolo rocker, and a knurled nut is matched with a threaded hole of the rocker for use.

10. The bridge of claim 1, wherein the pressure balance lock block is fixed to a side of the spring support assembly, and a pressure balance lock locking groove engaged with the pressure lock tongue is formed on the pressure balance lock block.

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