A smooth tremolo structure for stringed instruments

Abstract

The utility model discloses a kind of fluent tremolo structure of stringed instrument, it is related to stringed instrument technical field, including musical instrument main body and the base plate of being installed on musical instrument main body, pivot assembly is installed on the base plate, the utility model tremolo structure is introduced pivot assembly, wherein steering adjustment piece and the pivot sleeve joint rotation cooperation of front end of base plate pivot piece, replaced the rigid contact mode of blade-shaped edge and double-cone concave portion in traditional tremolo device, so that base plate swing when being driven under tremolo rocker assembly, the rotation of steering adjustment piece on pivot piece provides smooth transition and steering adjustment mechanism, reduce frictional resistance, so that the swing of base plate is more fluent and stable, effectively solve the tremolo output discontinuous problem caused by hard friction in prior art, improve the coherence and control precision of tremolo effect, while simplify structure and enhance service life.

Description

Technical Field

[0001] This utility model relates to the field of stringed instrument technology, specifically to a smooth vibrato lower chord structure for a stringed instrument. Background Technology

[0002] As described in the published patent CN2391276Y, "New Structure for Adjusting String Height with Vibration Lowering Rod of Electronic Guitar", "Music can cultivate the mind and body, and the guitar can be played and sung by oneself, which is very popular among young people. In particular, when electronic guitars are combined with amplifiers and audio equipment, they can bring the most shocking sound effects to the concert hall, which can inspire the audience to have a surge of emotion, to play with singers or bands and to immerse themselves in the music. It is one of the instruments that singers love. Generally, electronic guitars are equipped with a vibration lowering rod to allow for the control of vibration and the fine adjustment of string tension. The traditional vibration lowering rod (i.e., the vibrato device, the lowering rod is the industry term) not only has the effect of controlling the vibration, but also has the function of fixing the strings and fine adjusting the strings. The front end of the tuning seat of the vibration lowering rod is equipped with two adjusting studs to adjust the height of the tuning seat to find the appropriate tone."

[0003] As described in the published patent CN103620671B, "Vibrato Device for Stringed Instruments and Stringed Instrument," "A pivot assembly 105 is provided on the base plate of the vibrato device. Each of these assemblies consists of a pivot short shaft 109 and a pivot plug 106. In the front portion of the base plate, there are tapered, inclined circular recesses on the upper and lower sides of the base plate, such that a sharp edge is formed in each circular recess, which engages with a double-tapered recess formed below the head of each pivot short shaft 109. Thus, two contact points determine the balance axis of the rotation of the vibrato device relative to the instrument body (paragraph 0100 of the specification)." "A vibrato device, mounted as a fixed bridge on a stringed instrument. The front end of the base plate is fixed to the instrument body by a pair of pivoting components 105, which can also be used to adjust the height of the strings. Therefore, at the front end of the base plate, circular recesses are formed, which are tapered and inclined on the upper and lower sides of the base plate to form sharp edges. The recesses contact the pivoting short shaft 109 mounted on the pivoting plug 106 of the pivoting component 105, which is fixed to the instrument body (paragraph 0125 of the specification)." As described in the published patent "Vibrato Device for Stringed Instruments" with announcement number CN105659313B, "The base plate abuts against the pivot assembly 105, each including a pivot protrusion and a pivot insert. A front-end circular recess is provided in the base plate, and a tapered bevel is cut on the upper and lower surfaces of the base plate, such that a blade is formed by each circular slot, which engages with a double-conical recess below the head of each pivot protrusion (paragraph 0019 of the specification)."

[0004] In summary, in the field of stringed instruments, especially in the technology related to electric guitars, tremolo mechanisms typically include, for example... Figure 1 The substrate 001 shown has a circular recessed structure 002 at its front end, with a blade-shaped edge 003 (i.e., "knife edge") formed within the recess. Correspondingly, a pivot protrusion 004 is mounted on the instrument body. The head of the pivot protrusion 004 has a double-conical recess 005. Through the cooperation between the blade-shaped edge 003 and the double-conical recess 005, the rotational balance of the vibrato device relative to the instrument body is achieved. During playing, by plucking the vibrato rocker arm, the substrate swings up and down to produce a vibrato effect.

[0005] However, as Figure 2 As shown, through actual use and analysis, the applicant found that during the use of the above structure, the swing of the substrate depends entirely on the up-and-down swing of the blade-shaped edge 003 within the double-conical recess 005. Since the two are in rigid contact and are in hard frictional fit, there is a lack of effective transition and steering adjustment mechanism, which results in the blade-shaped edge 003 moving unsmoothly within the double-conical recess 005, thereby affecting the continuity and stability of the vibrato effect and causing the vibrato output to be unsmooth. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A smooth vibrato saddle structure for a stringed instrument includes a main body of the instrument and a base plate mounted on the main body of the instrument. Multiple saddle assemblies are mounted side by side on the upper surface of the base plate, and the number of saddle assemblies matches the number of strings of the instrument. The saddle assembly includes a string saddle fixedly mounted on the upper surface of the base plate and a bow string assembly mounted at the rear end of the string saddle. The substrate is equipped with a vibrating rocker assembly; The base plate is equipped with a pivot assembly, which includes a pivot plug that is fixedly attached to the instrument body. The upper end of the pivot plug is equipped with a steering adjustment component. The front end of the base plate is fixedly equipped with a rotating shaft component, and the steering adjustment component is sleeved and rotated with the rotating shaft component.

[0008] As a further embodiment of this utility model: the upper end of the pivot plug is provided with a pivot short shaft, the upper end of the pivot short shaft is fixedly provided with a limiting member, and the front end of the steering adjustment member is fixedly provided with a U-shaped plug that is engaged with the pivot short shaft.

[0009] As a further embodiment of this utility model: a pivot mounting groove is provided at the front end of the substrate, and pivot mounting holes are provided on the left and right side walls of the pivot mounting groove. The pivot component is installed in the pivot mounting hole, and a pivot sleeve hole is provided at the rear end of the steering adjustment component. The steering adjustment component is rotated and sleeved on the pivot component through the pivot sleeve hole.

[0010] As a further embodiment of this utility model: the rotating shaft mounting hole extends upward through the substrate, and locking and fixing holes are respectively provided on both sides of the rotating shaft mounting hole, and locking screws for limiting the position of the rotating shaft are locked in the locking and fixing holes.

[0011] As a further embodiment of this utility model: the rotating shaft mounting hole includes a semi-circular mounting hole, and semi-circular protrusions are formed at both ends of the rotating shaft. The semi-circular protrusions are installed in the semi-circular mounting hole, and the locking screws fix and limit the semi-circular protrusions.

[0012] As a further embodiment of this utility model: the lower end face of the substrate is provided with a clearance inclined surface.

[0013] As a further embodiment of this utility model: the string assembly includes an auxiliary mounting plate fixed on the base plate, a saddle positioning rod extending forward is rotatably mounted on the auxiliary mounting plate, and the rear end of the string saddle is screwed into the saddle positioning rod.

[0014] As a further embodiment of this utility model: a sliding groove is provided on the base plate, and a sliding rod extends from the lower end face of the string saddle and slides within the sliding groove. An elastic abutment is sleeved on the saddle positioning rod, the front end of the elastic abutment abuts against the string saddle, and the rear end of the elastic abutment abuts against the auxiliary mounting plate.

[0015] As a further embodiment of this utility model: the vibrato rocker assembly includes a rocker sleeve fixed on a substrate, the upper end face of the rocker sleeve has a rocker mounting hole, a positioning ring is screwed onto the outer wall of the rocker sleeve, and a fastening screw is provided on the outer wall of the rocker sleeve, which passes through the rocker mounting hole. The fastening screw abuts against the upper end face of the substrate, and the positioning ring abuts against the lower end face of the substrate.

[0016] As a further embodiment of this utility model: the substrate and the string saddle are respectively provided with a continuous substrate guide groove and a saddle guide groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model's vibrato rocker arm structure introduces a pivoting component, in which a steering adjustment component is sleeved and rotated with a rotating shaft at the front end of the base plate. This replaces the rigid contact between the blade-shaped edge and the double-conical recess in traditional vibrato devices. When the base plate swings under the drive of the vibrato rocker arm assembly, the rotation of the steering adjustment component on the rotating shaft provides a smooth transition and steering adjustment mechanism, reducing frictional resistance. This makes the swing of the base plate smoother and more stable, effectively solving the problem of discontinuous vibrato output caused by hard friction in the prior art, improving the continuity and control accuracy of the vibrato effect, while simplifying the structure and increasing service life. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the vibrato subcoil in the prior art; Figure 2 This is a schematic diagram of the structure of the blade-shaped edge and the double-conical recess in the prior art; Figure 3 This is a three-dimensional structural view of the present invention; Figure 4 This is another three-dimensional view of the structure of this utility model; Figure 5 This is an exploded view of this utility model; Figure 6 yes Figure 5 A partial view at point A in the middle; Figure 7 This is a side view of the present invention; Figure 8 This is another three-dimensional view of the structure of this utility model; Figure 9 This is another exploded view of this utility model; Figure 10 yes Figure 9 A partial view at point B in the middle; Figure 11 This is an exploded view of the string saddle in this utility model; Figure 12 This is an exploded view of the vibrato rocker assembly in this utility model; Figure 13 This is another exploded view of this utility model; The reference numerals and names in the figure are as follows: Baseboard-001, Circular recessed structure-002, Blade-shaped edge-003, Pivoting protrusion-004, Double conical recess-005, Saddle assembly-101, String saddle-102, Bow string assembly-103, Tremolo rocker assembly-104, Pivoting assembly-105, Pivoting plug-106, Steering adjustment component-107, Rotating shaft component-108, Pivoting short shaft-109, Limiting component-110, U-shaped connector-111, Pivoting mounting groove-112, Rotating shaft mounting hole-113, Rotating shaft sleeve hole -114, Locking fixing hole -115, Locking screw -116, Semi-circular mounting hole -117, Semi-circular protrusion -118, Alignment inclined surface -120, Auxiliary mounting plate -121, Saddle positioning rod -122, Slide groove -123, Slide rod -124, Elastic abutment part -125, Rocker sleeve part -126, Rocker mounting hole -127, Positioning ring -128, Fastening screw -129, Base plate guide groove -130, Saddle guide groove -131, Support block -132, Connecting hole -133. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-13 A smooth vibrato lower saddle structure for a stringed instrument includes a main body of the instrument and a base plate 001 mounted on the main body of the instrument. Multiple sets of saddle assemblies 101 are mounted side-by-side on the upper surface of the base plate 001, the number of which matches the number of strings on the instrument. The characteristic feature is that: The saddle assembly 101 includes a string saddle 102 fixedly mounted on the upper surface of the base plate and a bow string assembly 103 mounted on the rear end of the string saddle 102. The substrate is equipped with a vibrating rocker assembly 104; The base plate is equipped with a pivot assembly 105, which includes a pivot plug 106 fixedly attached to the instrument body. The upper end of the pivot plug 106 is equipped with a steering adjustment component 107, and the front end of the base plate is fixedly equipped with a rotating shaft component 108. The steering adjustment component 107 and the rotating shaft component 108 are sleeved and rotated together. like Figure 3 and 4 As shown, this utility model replaces the traditional vibrato downpipe's operation mode, which relies on the point contact between the "knife edge" and the "double conical recess," with a pivot structure in which the "steering adjustment component 107 and the rotating shaft component 108 are sleeved and rotated together." First and foremost, the most significant improvement lies in enhancing the smoothness of movement and the quality of vibrato. Traditional blade structures actually involve minute rolling and sliding friction within the concave part of the pivoting protrusion. This rigid contact inherently possesses static friction and discontinuity in movement, resulting in a "sluggish" feeling when initiating and rebounding vibrato. In contrast, the socketed rotation mechanism of this solution transforms the previous hard friction into a rolling or low-resistance sliding motion that is closer to a bearing, greatly reducing movement resistance. This allows the force applied by the performer through the vibrato rocker arm to be converted into the oscillation of the base plate more linearly and smoothly. The initiation and decay of vibrato are smoother, giving the music a richer dynamic range and emotional tension. Especially when performing delicate and subtle vibrato processing, it enables better precise control. Secondly, this solution enhances the stability and intonation consistency of the vibrato effect. Traditional blades, due to their extremely small point or line contact, have high local pressure. After prolonged and high-intensity use, the contact points are prone to wear and pitting or deformation. This can cause the swing fulcrum of the vibrato device to drift, leading to the "out-of-tune" problem—that is, the strings cannot accurately return to the initial pitch after vibrato. The socket structure of this solution provides a larger and more stable support contact surface, dispersing the stress. This not only overcomes the intonation drift problem caused by blade wear, but also ensures that the string tension and base plate position can be reliably reset after vibrato, guaranteeing the long-term stability of the playing pitch. Meanwhile, this design significantly improves the durability and reliability of the product and reduces maintenance requirements. The blade, as a precision and fragile part, has high requirements for manufacturing materials and heat treatment processes, and is prone to chipping and damage during installation or accidental impact. In contrast, the pivot assembly 105 of this design is more robust, and the steering adjustment part 107 and the pivot part 108 are not easily damaged by normal operation or accidental impact, and have a long service life. For users, this means a lower failure rate and maintenance costs, and the instrument can maintain its best working condition for a long time without frequent adjustments or replacement of core components. Finally, this solution also brings direct optimization to the control feel. The smooth swing means that the performer feels lighter and less effort when operating the vibrato joystick, making it easier to achieve rapid vibrato repetition and large pitch effects, reducing the physical burden on the performer and improving the comfort and expressiveness of the performance. In summary, the new vibrato rocker structure introduces a pivot component 105, in which the steering adjustment component 107 is sleeved and rotated with the rotating shaft component 108 at the front end of the substrate. This replaces the rigid contact between the blade-shaped edge and the double-conical recess in traditional vibrato devices. When the substrate swings under the drive of the vibrato rocker assembly 104, the rotation of the steering adjustment component 107 on the rotating shaft component 108 provides a smooth transition and steering adjustment mechanism, reducing frictional resistance and making the swing of the substrate smoother and more stable. It effectively solves the problem of discontinuous vibrato output caused by hard friction in the prior art, improves the continuity and control accuracy of the vibrato effect, and simplifies the structure and enhances the service life.

[0021] In this embodiment of the utility model, the upper end of the pivot plug 106 is provided with a pivot short shaft 109, the upper end of the pivot short shaft 109 is fixedly provided with a limiting member 110, and the front end of the steering adjustment member 107 is fixedly provided with a U-shaped plug 111 that is inserted and cooperates with the pivot short shaft 109. like Figure 5 As shown, the pivoting short shaft 109 mounted on the upper end of the pivoting plug 106 forms a plug-in fit with the U-shaped connector 111 at the front end of the steering adjustment component 107. At the same time, the limiting component 110 at the upper end of the pivoting short shaft 109 ensures axial positioning. During operation, this structure transforms the traditional point contact into a stable plug-in fit by wrapping around and locking the U-shaped connector 111 around the pivoting short shaft 109, making the swing of the base plate smooth and without shaking. At the same time, the locking structure between the U-shaped connector 111 and the pivoting short shaft 109 not only provides a stable and reliable connection and effectively transmits torque, but also makes the assembly process of the entire pivoting assembly 105 simpler and faster, without the need for complicated tools. It also enables quick disassembly and assembly during daily maintenance or replacement of parts, improving the maintainability and ease of use of the product.

[0022] In this embodiment of the utility model, a pivot mounting groove 112 is provided at the front end of the substrate, and pivot mounting holes 113 are provided on the left and right side walls of the pivot mounting groove 112. The pivot member 108 is installed in the pivot mounting hole 113, and a pivot sleeve hole 114 is provided at the rear end of the steering adjustment member 107. The steering adjustment member 107 is rotatably sleeved on the pivot member 108 through the pivot sleeve hole 114. like Figure 5As shown, a pivot mounting groove 112 is opened at the front end of the substrate, and a pivot mounting hole 113 is provided on its side wall to fix the pivot component 108. At the same time, the rear end of the steering adjustment component 107 forms a rotating sleeve engagement with the pivot component 108 through the pivot sleeve hole 114. With this structure, the steering adjustment component 107 can rotate around the pivot component 108 during operation, providing a stable rotation axis for the swing of the substrate. This pivot sleeve structure not only effectively eliminates the frictional resistance and wobbling gap of the traditional blade contact point, making the vibrating action smoother and more responsive, but also significantly improves the wear resistance of the component and the overall structural stability through the force-bearing method of surface contact. At the same time, the modular slot and pivot engagement also facilitate production assembly and daily maintenance.

[0023] In this embodiment of the utility model, the rotating shaft mounting hole 113 extends upward through the substrate, and locking and fixing holes 115 are respectively provided on both sides of the rotating shaft mounting hole 113. Locking screws 116 for limiting the rotating shaft component 108 are locked in the locking and fixing holes 115. like Figure 6 As shown, by designing the pivot mounting hole 113 as an upward penetrating structure through the substrate, and configuring locking holes 115 and locking screws 116 on both sides, the pivot component 108 can be conveniently installed and positioned from top to bottom using the through hole. Then, the radial locking force of the locking screws 116 on both sides provides a stable radial and axial limit for the pivot component 108. This ensures that the pivot component 108 will not shift or loosen when subjected to force and swing, significantly improving the stability and reliability of the pivot structure. It also makes the assembly process more intuitive and convenient, and facilitates the quick disassembly, adjustment, or replacement of the pivot component 108 during maintenance, effectively improving the maintainability and service life of the product.

[0024] In this embodiment of the utility model, the rotating shaft mounting hole 113 includes a semi-circular mounting hole 117, and the two ends of the rotating shaft 108 are respectively formed with semi-circular protrusions 118. The semi-circular protrusions 118 are installed in the semi-circular mounting hole 117, and the locking screw 116 fixes and limits the semi-circular protrusions 118. like Figure 6 As shown, by designing the pivot mounting hole 113 as a semi-circular structure and forming a complementary shape with the semi-circular protrusions 118 formed at both ends of the pivot 108, the pivot 108 is pre-positioned and circumferentially limited by the semi-circular protrusions 118 embedded in the semi-circular mounting hole 117, and finally fixed by the tightening force applied by the locking screw 116. The semi-circular arc surface not only provides a larger contact area and a more uniform force distribution, effectively preventing the pivot 108 from loosening or rotating during long-term use, but also significantly improves the rigidity and stability of the pivot structure. At the same time, its self-aligning characteristic makes the assembly process more convenient and precise, improves production assembly efficiency and reduces the difficulty of maintenance and adjustment.

[0025] In this embodiment of the present invention, the lower end face of the substrate is provided with a clearance inclined surface 120; like Figure 7 and Figure 8 As shown, by providing a clearance inclined surface 120 on the front side of the lower end of the base plate, when the base plate swings around the pivot 108, the clearance inclined surface 120 can provide sufficient physical clearance for the pivot plug 106 and related structures fixed on the instrument body, thereby forming an effective clearance space; fundamentally avoiding mechanical interference and collision between the base plate and the instrument body or pivot plug 106 during the up-and-down swinging process, ensuring that the complete range of motion of the vibrato action can be realized without obstruction, not only ensuring the smoothness and stability of the vibrato effect, but also eliminating abnormal noise, component wear or movement jamming caused by structural interference.

[0026] In this embodiment of the utility model, the string assembly 103 includes an auxiliary mounting plate 121 fixed on the base plate, and a forward-extending saddle positioning rod 122 is rotatably mounted on the auxiliary mounting plate 121. The rear end of the string saddle 102 is screwed into the saddle positioning rod 122. like Figure 9 and 10 As shown, the string assembly 103 supports a rotatable saddle positioning rod 122 via an auxiliary mounting plate 121 fixed to the base plate, and the rear end of the string saddle 102 forms a threaded engagement with the positioning rod. When the saddle positioning rod 122 is rotated, the threaded transmission converts the rotational motion into a linear displacement of the string saddle 102, thereby directly adjusting the effective vibration length and tension of the string. This achieves the fine-tuning function of the string pitch, with a precise, linear, and self-locking stable adjustment process, effectively avoiding the problem of out-of-tune notes caused by component displacement during performance. At the same time, the overall structure is compact and reliable, providing convenient and reliable technical support for fine-tuning of pitch. In this embodiment of the utility model, a sliding groove 123 is provided on the substrate, and a sliding rod 124 extends from the lower end face of the string saddle 102 and slides within the sliding groove 123. An elastic abutment 125 is sleeved on the saddle positioning rod 122. The front end of the elastic abutment 125 abuts against the string saddle 102, and the rear end of the elastic abutment 125 abuts against the auxiliary mounting plate 121. like Figure 11As shown, the sliding engagement of the slide groove 123 with the sliding rod 124 of the string saddle 102 provides precise guidance for the forward and backward movement of the saddle. At the same time, the elastic abutment 125 sleeved on the saddle positioning rod 122 abuts against the string saddle 102 and the auxiliary mounting plate 121 respectively. The engagement of the sliding rod 124 and the slide groove 123 constrains the movement of the string saddle 102 in the undesired direction, ensuring stable sliding along the predetermined trajectory. The elastic abutment 125 continuously applies axial preload, effectively suppressing the slight displacement or shaking of the saddle that may be caused by string vibration or external impact. This significantly improves the positional stability and smoothness of the string saddle 102 during tuning and long-term performance, ensuring the accuracy and repeatability of pitch adjustment, and eliminating noise or out-of-tune problems caused by loose parts, thereby ensuring the purity and long-term stability of the instrument's sound quality.

[0027] In this embodiment of the present invention, the vibrato rocker assembly 104 includes a rocker sleeve 126 fixed on a substrate. The upper end face of the rocker sleeve 126 is provided with a rocker mounting hole 127. A positioning ring 128 is screwed onto the outer wall of the rocker sleeve 126. A fastening screw 129 is provided on the outer wall of the rocker sleeve 126, which penetrates into the rocker mounting hole 127. The fastening screw 129 abuts against the upper end face of the substrate, and the positioning ring 128 abuts against the lower end face of the substrate. like Figure 12 As shown, the vibrato rocker assembly 104 is installed through the rocker sleeve 126 through the substrate, and is bidirectionally locked by the fastening screw 129 and the positioning ring 128 abutting against the upper and lower end faces of the substrate respectively. When the fastening screw 129 is tightened, the contact force with the upper end face of the substrate and the reaction force between the positioning ring 128 and the lower end face of the substrate form a stable clamping structure to firmly fix the rocker sleeve 126 on the substrate. At the same time, the fastening screw 129 can also radially lock the vibrato rocker inserted into the rocker mounting hole 127. The dual functions of sleeve positioning and rocker locking are achieved by a single screw, which not only ensures the installation stability of the rocker sleeve 126 under frequent swing loads and avoids loosening and abnormal noise during use, but also makes the installation, fixing and disassembly of the vibrato rocker quick and easy.

[0028] In this embodiment of the utility model, the substrate and the string saddle 102 are respectively provided with a continuous substrate guide groove 130 and a saddle guide groove 131. like Figure 10As shown, by providing continuous base plate guide grooves 130 and saddle guide grooves 131 on the base plate and string saddle 102 respectively, the strings can pass through these two aligned guide grooves in a smooth transition, providing the strings with a consistent positioning path from the string assembly 103 to the saddle contact point; this not only ensures that each string can obtain accurate linear positioning during installation and tensioning, effectively preventing the strings from sliding laterally or shifting position, thereby improving the stability of pitch and the convenience of tuning, but also significantly reduces abnormal friction and stress concentration of the strings at the stress points.

[0029] In this embodiment of the present invention, a support block 132 is installed on the lower surface of the substrate, and the support block 132 is provided with a plurality of connection holes 133 corresponding one-to-one with the saddle assembly 101. like Figure 13 As shown in the published patent CN103620671B, "Vibrato Device for Stringed Instruments," "The vibrato bridge control mechanism includes a threaded cylinder disposed on the side base plate portion and pointing downwards. The cylinder is mounted on the base plate by means of a nut tightened at its lower end on the lower side of the base plate. The vibrato arm is mounted in the cylinder. During the operation of the vibrato arm—pulling the arm upwards or pressing it downwards—a slight rotation of the base plate is achieved together with the saddle assembly and support block overcoming the force generated by the tension application mechanism mounted on the support block around the shaft in the bearing device of the hinge mechanism." (paragraph 0012 of the specification). It can be seen that the lower end of the support block is also connected to the tension application mechanism, and the vibrato structure is realized through the tension application mechanism, the support block, and the vibrato lower saddle structure. It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A smooth vibrato saddle structure for a stringed instrument, comprising an instrument body and a base plate mounted on the instrument body, wherein multiple saddle assemblies (101) are mounted side-by-side on the upper surface of the base plate, the number of saddle assemblies (101) matching the number of strings of the instrument, characterized in that: The saddle assembly (101) includes a string saddle (102) fixedly mounted on the upper surface of the base plate and a string assembly (103) mounted on the rear end of the string saddle (102). The substrate is equipped with a vibrating rocker assembly (104). The base plate is equipped with a pivot assembly (105), which includes a pivot plug (106) fixedly attached to the instrument body. The upper end of the pivot plug (106) is equipped with a steering adjustment component (107), and the front end of the base plate is fixedly equipped with a rotating shaft component (108). The steering adjustment component (107) and the rotating shaft component (108) are sleeved and rotated together.

2. The smooth vibrato lower chord structure for a stringed instrument according to claim 1, characterized in that, The upper end of the pivot plug (106) is equipped with a pivot short shaft (109), the upper end of the pivot short shaft (109) is fixed with a limiting member (110), and the front end of the steering adjustment member (107) is fixed with a U-shaped plug (111) that is inserted and cooperates with the pivot short shaft (109).

3. The smooth vibrato lower chord structure for a stringed instrument according to claim 2, characterized in that, The front end of the substrate is provided with a pivot mounting groove (112), and the left and right side walls of the pivot mounting groove (112) are provided with pivot mounting holes (113). The pivot component (108) is installed in the pivot mounting hole (113), and the rear end of the steering adjustment component (107) is provided with a pivot sleeve hole (114). The steering adjustment component (107) is rotatably sleeved on the pivot component (108) through the pivot sleeve hole (114).

4. The smooth vibrato lower chord structure for a stringed instrument according to claim 3, characterized in that, The rotating shaft mounting hole (113) extends upward through the substrate. Locking and fixing holes (115) are respectively provided on both sides of the rotating shaft mounting hole (113). Locking screws (116) for limiting the rotating shaft (108) are locked in the locking and fixing holes (115).

5. The smooth vibrato lower chord structure for a stringed instrument according to claim 4, characterized in that, The rotating shaft mounting hole (113) includes a semi-circular mounting hole (117) in a semi-circular shape. The two ends of the rotating shaft (108) are respectively formed with semi-circular protrusions (118). The semi-circular protrusions (118) are installed in the semi-circular mounting hole (117). The locking screw (116) fixes and limits the semi-circular protrusions (118).

6. A smooth vibrato lower chord structure for a stringed instrument according to any one of claims 1-5, characterized in that, The lower end face of the substrate is provided with a clearance inclined surface (120).

7. A smooth vibrato lower chord structure for a stringed instrument according to any one of claims 1-5, characterized in that, The string assembly (103) includes an auxiliary mounting plate (121) fixed on the base plate. A saddle positioning rod (122) is rotatably mounted on the auxiliary mounting plate (121) and extends forward. The rear end of the string saddle (102) is screwed into the saddle positioning rod (122).

8. The smooth vibrato lower chord structure for a stringed instrument according to claim 7, characterized in that, The substrate is provided with a sliding groove (123), and the lower end face of the string saddle (102) extends a sliding rod (124) that slides and engages within the sliding groove (123). An elastic abutment (125) is sleeved on the saddle positioning rod (122). The front end of the elastic abutment (125) engages and engages with the string saddle (102), and the rear end of the elastic abutment (125) engages and engages with the auxiliary mounting plate (121).

9. The smooth vibrato lower chord structure for a stringed instrument according to claim 8, characterized in that, The vibrato rocker assembly (104) includes a rocker sleeve (126) fixed on a substrate. The upper end face of the rocker sleeve (126) is provided with a rocker mounting hole (127). A positioning ring (128) is screwed onto the outer wall of the rocker sleeve (126). A fastening screw (129) is provided on the outer wall of the rocker sleeve (126) and extends through the rocker mounting hole (127). The fastening screw (129) abuts against the upper end face of the substrate, and the positioning ring (128) abuts against the lower end face of the substrate.

10. The smooth vibrato lower chord structure for a stringed instrument according to claim 9, characterized in that, The substrate and the string saddle (102) are respectively provided with a continuous substrate guide groove (130) and a saddle guide groove (131).

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