A harp

Abstract

A kind of harp, including body, frame assembly and reed, the frame assembly is fixedly installed on body;The frame assembly includes lower frame assembly and upper frame assembly;Lower frame assembly includes integrally-formed main body and auxiliary part, the main body is blocky, installation groove is opened in the main body, and the auxiliary part is located on the upper surface of the main body;Upper frame assembly is detachably fixedly installed on the upper surface of main body.The utility model aims at presenting a kind of harp, the harp has double-layer structure, to reduce mould cost, two layers are divided into to two groups of mould, to reduce the difficulty of mould design in this way, reduce production cost.

Description

Technical Field

[0001] This utility model relates to musical instruments, and in particular to a thumb piano. Background Technology

[0002] The principle of thumb piano sound production is based on reed vibration and resonance amplification. Its core is that the vibration of the reed generates sound, which is then amplified by the resonating box.

[0003] A thumb piano consists of multiple reeds of different lengths mounted on a frame. The different lengths of metal pieces produce different pitches when played, so the reeds are similar to piano keys. When a single reed is installed, the front and rear sections of the reed are placed on two nut-shaped supports arranged front and back, respectively, while the middle section of the reed is pressed down by the bridge. The reed is fixed by the support points created from below by the two nut-shaped supports and the pressing point from above. The nut-shaped supports and the bridge are fixed to the body of the piano. When the reed is plucked to produce sound, the vibrating body of the piano resonates.

[0004] The nut and bridge are important components of the katakana. The common installation method involves splicing multiple sets of profiles to form two lower support points and one upper clamping point. The profiles are relatively thin, resulting in significant loss of reed vibrations during transmission to the body, leading to lower sound quality. Therefore, to ensure acoustic performance, the reed mounting structure is manufactured using a die-casting process. Die-cast parts have strong integrity and a certain thickness, which can effectively transmit key vibrations and maintain tonal purity.

[0005] Die casting requires high precision in mold design. The more complex the product shape, the more complex the die casting mold, and the higher the corresponding development and production costs. Thumb pianos not only have single layers, but also have multiple layers as the scale increases. The installation structure of multiple reeds is relatively complex, which makes die casting more expensive. Therefore, to produce piano frames by die casting, the structure of the piano frame needs to be designed first to ensure that a low-cost production mold can be designed later. Utility Model Content

[0006] To address the aforementioned shortcomings, the purpose of this utility model is to propose a thumb piano with a double-layer structure. In order to reduce mold costs, the double-layer piano frame is divided into two layers, and two sets of molds are designed accordingly, thereby reducing the difficulty of mold design and reducing production costs.

[0007] To achieve this objective, the present invention adopts the following technical solution: A thumb piano includes a body, a frame assembly, and reeds, wherein the frame assembly is fixedly installed on the body. The piano frame assembly includes a lower piano frame assembly and an upper piano frame assembly; the lower piano frame assembly includes an integrally formed main body and an auxiliary body, the main body is block-shaped, a mounting groove is formed in the main body, and the auxiliary body is located on the upper surface of the main body; the upper piano frame assembly is detachably and fixedly installed on the upper surface of the main body. The mounting groove extends from the front end to the rear end of the main body. The mounting groove is provided with a front nut, a bridge, and a rear nut of the lower piano frame. Reeds are installed on the front nut, bridge, and rear nut of the lower piano frame. The auxiliary part includes a front protrusion and a rear protrusion. The front protrusion, the rear protrusion and the upper piano frame assembly are all strips with a vertical cross section, and they all extend from one side of the main body to the other side. The front protrusion, the upper piano frame assembly and the rear protrusion are arranged sequentially from front to back. The front and rear protrusions are provided with front and rear reed receiving slots in a corresponding manner; the upper frame assembly has an upper frame bridge hole corresponding to the front reed receiving slot, and reeds are installed in the front reed receiving slot, the upper frame bridge hole, and the rear reed receiving slot.

[0008] Preferably, the front nut of the lower violin frame is located at the front opening inside the mounting groove, the rear nut of the lower violin frame is located in the middle and rear section of the mounting groove, and the violin bridge of the lower violin frame is located between the front nut and the rear nut of the lower violin frame inside the mounting groove.

[0009] Preferably, the longitudinal position of the front protrusion relative to the main body is located between the front nut of the lower piano frame and the bridge of the lower piano frame; The rear boss is aligned with the rear end of the main body in its longitudinal position relative to the main body. The upper frame assembly is located longitudinally between the front boss and the rear boss of the main body.

[0010] Preferably, the plurality of mounting slots are spaced apart, and reeds of different pitches are installed in the plurality of mounting slots respectively; The multiple sets of front reed receiving slots, upper bridge bridge holes, and rear reed receiving slots are arranged at intervals, and reeds of different pitches are installed in the multiple sets of front reed receiving slots, upper bridge bridge holes, and rear reed receiving slots respectively.

[0011] The mounting slots of the lower frame assembly and the front spring receiving slots are arranged in a staggered pattern.

[0012] Furthermore, it also includes a mounting plate located at the bottom of the main body, and the main body and the mounting plate are integrally formed; The main body is in the shape of an arc block, and the main body is arranged in an arc shape from the front left to the rear right of the mounting plate; there are empty spaces on the front right and rear left of the mounting plate, and multiple mounting holes are provided in the empty spaces; The front boss, rear boss, and upper frame assembly are arranged with the same curvature as the main body.

[0013] Furthermore, the upper piano frame assembly also includes an upper piano frame assembly mounting base, which is in the form of a flat strip. The right end of the upper piano frame assembly mounting base is integrally formed on the lower end of the front side of the upper piano frame assembly, and the upper piano frame assembly mounting base is provided with multiple screw holes.

[0014] Furthermore, the screw holes correspond to the solid portion between the mounting slots of the main body.

[0015] Furthermore, the upper ends of the front nut and the rear nut of the lower violin frame are positioned below the upper opening plane of the mounting groove.

[0016] One of the above technical solutions includes the following beneficial effects: This solution decomposes the entire piano frame assembly into a lower frame assembly and an upper frame assembly. The upper frame assembly includes two support points (a front boss and a rear boss) and one clamping point (the bridge hole). The front and rear support points share the same integral casting structure with the lower keys, while the upper frame bridge hole clamping point is independently formed within the upper casting frame. This design, compared to using a separate mold, reduces the design complexity of core pulling, allowing for two simpler mold cavity designs, thus lowering mold design and production costs. The lower frame assembly includes a front nut, a bridge, and a rear nut. All three contact points are integrally formed from the lower casting frame, ensuring superior key vibration transmission compared to spliced ​​structures. This structure also provides front and rear support for the upper keys, maximizing the utilization of mold resources. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the piano stand assembly of this utility model; Figure 3 This is a structural schematic diagram of the lower piano frame assembly of this utility model; Figure 4 This is a structural schematic diagram of the upper piano frame assembly of this utility model; Figure 5 This is a cross-sectional structural diagram of the piano stand assembly of this utility model.

[0018] The components include: body 100, frame assembly 200, lower frame assembly 210, upper frame assembly 220, upper frame bridge hole 221, upper frame assembly mounting base 222, main body 230, mounting groove 231, lower frame front nut 232, lower frame bridge 233, lower frame rear nut 234, auxiliary part 240, front boss 250, front reed receiving groove 251, rear boss 260, rear reed receiving groove 261, mounting plate 270, and reed 300. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] like Figure 1 and 2 As shown, a thumb piano includes a body 100, a frame assembly 200, and reeds 300, wherein the frame assembly 200 is fixedly installed on the body 100. The instrument stand assembly 200 is characterized in that it includes a lower instrument stand assembly 210 and an upper instrument stand assembly 220; the lower instrument stand assembly 210 includes an integrally formed main body 230 and an auxiliary body 240, the main body 230 is block-shaped, a mounting groove 231 is formed in the main body 230, and the auxiliary body 240 is located on the upper surface of the main body 230; the upper instrument stand assembly 220 is detachably and fixedly installed on the upper surface of the main body 230. like Figure 3 As shown, the mounting groove 231 extends from the front end to the rear end of the main body 230. The mounting groove 231 is provided with a front nut 232, a bridge 233, and a rear nut 234. Reeds 300 are installed on the front nut 232, the bridge 233, and the rear nut 234. The auxiliary part 240 includes a front protrusion 250 and a rear protrusion 260. The front protrusion 250, the rear protrusion 260 and the upper piano frame assembly 220 are all strips with a vertical cross section, and all extend from one side of the main body 230 to the other side. The front protrusion 250, the upper piano frame assembly 220 and the rear protrusion 260 are arranged sequentially from front to back. The front boss 250 and the rear boss 260 are provided with a front reed receiving groove 251 and a rear reed receiving groove 261 in a corresponding manner; the upper frame assembly 220 has an upper frame bridge hole 221 corresponding to the front reed receiving groove 251, and reeds 300 are installed in the front reed receiving groove 251, the upper frame bridge hole 221 and the rear reed receiving groove 261.

[0021] This design decomposes the entire piano frame assembly 200 into a lower piano frame assembly 210 and an upper piano frame assembly 220. The upper piano frame assembly 220 includes two support points (front boss 250 and rear boss 260) and one clamping point (bridge hole 221). The front and rear support points (front boss 250 and rear boss 260) share the same integral casting structure with the lower keys, while the clamping point (bridge hole 221) is independently formed within the upper casting frame. This design, compared to using a separate mold, reduces the design complexity of core pulling and allows for two simpler mold cavity designs, lowering mold design and production costs. The lower piano frame assembly 210 includes a front nut 232, a bridge 233, and a rear nut 234. All three contact points are integrally formed from the lower casting frame, ensuring superior key vibration transmission compared to spliced ​​structures. This structure also provides front and rear support for the upper keys, maximizing the utilization of mold resources.

[0022] like Figure 3 and Figure 5 As shown, the front nut 232 of the lower piano frame is located at the front opening inside the mounting groove 231, the rear nut 234 of the lower piano frame is located in the middle and rear section of the mounting groove 231, and the piano bridge 233 of the lower piano frame is located between the front nut 232 and the rear nut 234 of the lower piano frame inside the mounting groove 231.

[0023] The three-point support structure, combined with the mounting groove 231, can surround the reed 300, increasing the surface area for receiving and propagating the vibration of the reed 300, thus ensuring the effective transmission of the piano key vibration.

[0024] like Figure 5 As shown, Figure 5 The right side is the front, and the longitudinal position of the front protrusion 250 relative to the main body 230 is between the front nut 232 of the lower piano frame and the bridge 233 of the lower piano frame; The rear boss 260 is flush with the rear end of the main body 230 in the longitudinal direction relative to the main body 230. The upper piano frame assembly 220 is located longitudinally between the front boss 250 and the rear boss 260 relative to the main body 230.

[0025] This arrangement allows the upper reed 300 and the lower reed 300 to be staggered, avoiding mutual interference between the upper and lower reeds. The staggered arrangement reduces the impact of reeds overlapping, making it easier for users to play.

[0026] The plurality of mounting slots 231 are spaced apart, and reeds 300 of different pitches are installed in the plurality of mounting slots 231 respectively; The multiple sets of front reed receiving slots 251, upper piano stand bridge holes 221 and rear reed receiving slots 261 are arranged at intervals, and reeds 300 of different pitches are installed in the multiple sets of front reed receiving slots 251, upper piano stand bridge holes 221 and rear reed receiving slots 261 respectively.

[0027] The mounting slot 231 of the lower frame assembly 210 and the front reed receiving slot 251 are arranged in a staggered manner.

[0028] Under normal circumstances, multiple reeds are installed from one side to the other in pitch order. The upper reed 300 and the lower reed 400 are staggered to prevent them from overlapping and to make it easier for the user to play.

[0029] like Figure 2 As shown, it also includes a mounting plate 270, which is located at the bottom of the main body 230, and the main body 230 and the mounting plate 270 are integrally formed; The main body 230 is arc-shaped and is arranged in an arc shape from the front left to the rear right of the mounting plate 270; the front right and rear left parts of the mounting plate 270 have empty spaces with multiple mounting holes. The front boss 250, the rear boss 260, and the upper frame assembly 220 are arranged with the same curvature as the main body 230.

[0030] Because the length of the reed gradually increases from one side to the other, the curved design reduces the front-to-back distance between the longest and shortest ends of the reed, making it easier for users to play.

[0031] like Figure 4 and Figure 5 As shown, the upper piano frame assembly 220 also includes an upper piano frame assembly mounting base 222, which is in the shape of a flat strip. The right side of the upper piano frame assembly mounting base 222 is integrally formed on the lower end of the front side of the upper piano frame assembly 220, and the upper piano frame assembly mounting base 222 is provided with multiple screw holes.

[0032] Multiple screws ensure a good installation effect between the upper piano stand assembly 220 and the lower piano stand assembly 210, thereby guaranteeing sound quality.

[0033] Furthermore, the screw holes correspond to the solid portion between the mounting grooves 231 of the main body 230.

[0034] Furthermore, the upper ends of the front nut 232 and the rear nut 234 of the lower violin frame are lower than the upper opening plane of the mounting groove 231.

[0035] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A thumb piano, comprising a body, a frame assembly, and reeds, wherein the frame assembly is fixedly mounted on the body; Its features are, The piano frame assembly includes a lower piano frame assembly and an upper piano frame assembly; the lower piano frame assembly includes an integrally formed main body and an auxiliary body, the main body is block-shaped, a mounting groove is formed in the main body, and the auxiliary body is located on the upper surface of the main body; the upper piano frame assembly is detachably and fixedly installed on the upper surface of the main body. The mounting groove extends from the front end to the rear end of the main body. The mounting groove is provided with a front nut, a bridge, and a rear nut of the lower piano frame. Reeds are installed on the front nut, bridge, and rear nut of the lower piano frame. The auxiliary part includes a front protrusion and a rear protrusion. The front protrusion, the rear protrusion and the upper piano frame assembly are all strips with a vertical cross section, and they all extend from one side of the main body to the other side. The front protrusion, the upper piano frame assembly and the rear protrusion are arranged sequentially from front to back. The front and rear protrusions are provided with front and rear reed receiving slots in a corresponding manner; the upper frame assembly has an upper frame bridge hole corresponding to the front reed receiving slot, and reeds are installed in the front reed receiving slot, the upper frame bridge hole, and the rear reed receiving slot.

2. The thumb piano according to claim 1, characterized in that, The front nut of the lower violin frame is located at the front opening inside the mounting slot, the rear nut of the lower violin frame is located in the middle and rear section of the mounting slot, and the violin bridge of the lower violin frame is located between the front nut and the rear nut of the lower violin frame inside the mounting slot.

3. The thumb piano according to claim 2, characterized in that, The front protrusion is located longitudinally between the front nut and the bridge of the lower piano frame relative to the main body. The rear boss is aligned with the rear end of the main body in its longitudinal position relative to the main body. The upper frame assembly is located longitudinally between the front boss and the rear boss of the main body.

4. The thumb piano according to claim 3, characterized in that, Multiple mounting slots are spaced apart, and reeds of different pitches are installed in each of the multiple mounting slots; The multiple sets of front reed receiving slots, upper piano frame bridge holes and rear reed receiving slots are arranged at intervals, and reeds of different pitches are installed in the multiple sets of front reed receiving slots, upper piano frame bridge holes and rear reed receiving slots respectively; The mounting slots of the lower frame assembly and the front spring receiving slots are arranged in a staggered pattern.

5. The thumb piano according to claim 1, characterized in that, It also includes a mounting plate, which is located at the bottom of the main body, and the main body and the mounting plate are integrally formed; The main body is in the shape of an arc block, and the main body is arranged in an arc shape from the front left to the rear right of the mounting plate; there are empty spaces on the front right and rear left of the mounting plate, and multiple mounting holes are provided in the empty spaces; The front boss, rear boss, and upper frame assembly are arranged with the same curvature as the main body.

6. The thumb piano according to claim 5, characterized in that, The upper piano frame assembly also includes an upper piano frame assembly mounting base, which is in the form of a flat strip. The right end of the upper piano frame assembly mounting base is integrally formed on the lower end of the front side of the upper piano frame assembly, and the upper piano frame assembly mounting base is provided with multiple screw holes.

7. The thumb piano according to claim 6, characterized in that, The screw holes correspond to the solid portion between the mounting slots of the main body.

8. The thumb piano according to claim 7, characterized in that, The upper ends of the front nut and rear nut of the lower violin frame are positioned below the upper opening plane of the mounting slot.

Images