CN210223546U

CN210223546U - Electric piano and mounting structure of key thereof

Info

Publication number: CN210223546U
Application number: CN201920709854.5U
Authority: CN
Inventors: Feng Jiang; 蒋峰; Hua Xiao; 肖华; Guanggen Peng; 彭广根
Original assignee: Hangzhou Musical Instrument Co Ltd
Current assignee: Hangzhou Musical Instrument Co Ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-03-31
Anticipated expiration: 2029-05-17

Abstract

The utility model belongs to the technical field of the musical instrument, concretely relates to fender and mounting structure of key thereof, including the keyboard support who is used for installing the key, the keyboard support is for following the equal the same rectangular shape in arbitrary one of length direction cross-section and through the preparation of extrusion molding process, and the one end of key is free overhang form with keyboard support fixed connection, the other end, and the length direction of the length direction perpendicular to keyboard support of key and key are equidistantly arranged on the keyboard support. The long-strip-shaped keyboard support is manufactured through an extrusion molding process, keys are arranged on the keyboard support at equal intervals, the extrusion molding process can be used for producing the keyboard support with any length, so that the requirements of customers on electronic organs with different key numbers are met, a manufacturer does not need to prepare multiple sets of dies, and the production cost is greatly reduced.

Description

Electric piano and mounting structure of key thereof

Technical Field

The utility model belongs to the technical field of the musical instrument, concretely relates to fender and mounting structure of key thereof.

Background

The electronic organ is more and more popular with people due to convenience and practicability, and the key principle is that the pressing action of the keys is transmitted to the sound production device through the switch circuits corresponding to the keys, and the sound production device emits music corresponding to the pressed keys, so that the playing purpose is achieved.

At present, the connection between keys of an electronic organ and a base of the organ generally adopts the following modes: the keys are fixed on the bottom shell of the electronic organ by connecting components such as a keyboard bracket and the like. In the connection mode, when the keys are pressed, the springs arranged between the keys and the connection device are lengthened, meanwhile, the keys are contacted with the musical scale conductive adhesive and press the musical scale conductive adhesive, and the musical scale conductive adhesive transmits signals to the sound production device; when the key depression is canceled, the key is restored to the original position of the non-depressed state by the restoring forces of the spring and the tone conductive paste.

The keyboard support in the connection mode is usually manufactured in an injection molding mode or an in-mold insert injection molding mode, in the production mode, because the size and the size of a mold are fixed, one mold can only produce the keyboard support of one type, if non-standard electronic organs with different key numbers are needed according to customer requirements, the keyboard supports with different lengths need to be prepared, so that a manufacturer needs to be provided with corresponding molds for production, a large number of molds are prepared, the production cost is greatly increased, and meanwhile, the labor and the financial resources needed for maintaining the molds are increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mounting structure of key, the keyboard support through extrusion molding technology production can control arbitrary length, and need not mould, reduction in production cost.

In order to realize the technical purpose, the utility model discloses a following technical scheme: the utility model provides a mounting structure of key, is including the keyboard support that is used for installing the key, the keyboard support is for following the equal same rectangular shape in arbitrary one of length direction cross-section and through the preparation of extrusion molding process, and the one end and the keyboard support fixed connection of key, the other end are the free overhang form, and the length direction of the length direction perpendicular to keyboard support of key and key equidistance are arranged on the keyboard support.

Among the above-mentioned technical scheme, the keyboard support of rectangular shape is made through the extrusion molding technology, and the key equidistance is arranged on the keyboard support, and the extrusion molding technology can produce the keyboard support of arbitrary length to satisfy the requirement of the different key number electronic organ of customer, the producer need not to prepare multiunit mould, greatly reduced manufacturing cost.

Another object of the utility model is to provide an electric piano, including aforementioned mounting structure, the key includes the button of rectangular shape, and the one end of button is the installation end, the other end is for pressing down the end, and the installation end is equipped with the mounting panel, sets up the installation through-hole of hole core perpendicular to face on the mounting panel, through elastic plate fixed connection between button and the mounting panel.

In the technical scheme, the mounting plate is fixed on the keyboard bracket through the mounting through hole by the screw, and when external force acts on the pressing end of the key, the key presses downwards under the action of the external force because the elastic plate connecting the key and the mounting plate is an elastic original piece; when the external force is cancelled, the key is restored to the initial position of the non-pressed state under the restoring force action of the elastic plate.

Drawings

Fig. 1 is a schematic structural view of the mounting state of keys and a keyboard bracket of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a schematic structural view of the keyboard support of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3;

fig. 5 is a schematic structural diagram of the middle key of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

The utility model provides a mounting structure of key, is including the keyboard support 10 that is used for installing key 20, and keyboard support 10 is for being along the equal same rectangular shape in arbitrary one of length direction cross-section and through the preparation of extrusion molding process, the one end and the keyboard support 10 fixed connection of key 20, the other end are the form of freely overhanging, and the length direction of key 20 perpendicular to keyboard support 10's length direction and key 20 are equidistant range on keyboard support 10. The extrusion molding process is generally used for manufacturing sectional materials with the same cross section such as rods, pipes and strips, for parts of the type, the parts are manufactured through the extrusion molding process, a die does not need to be prepared, meanwhile, the manpower and financial resources required for maintaining the die are reduced, and the quick output with less investment is realized. The long-strip-shaped keyboard support 10 is manufactured through an extrusion molding process, the extrusion molding process can be used for producing the keyboard support 10 with any length so as to meet the requirements of different key numbers of electronic organs of customers, the production efficiency is high, meanwhile, a manufacturer does not need to prepare multiple sets of dies, and the production cost is greatly reduced.

The utility model provides an electric piano, includes aforementioned mounting structure, and key 20 includes the button 21 of rectangular shape, and the one end of button 21 is the installation end, the other end is for pressing the end, the installation end is equipped with mounting panel 22, sets up the installation through-hole 221 of hole core perpendicular to face on the mounting panel 22, passes through elastic plate 23 fixed connection between button 21 and the mounting panel 22. The mounting plate 22 is fixed on the keyboard support 10 by a screw through the mounting through hole 221, when an external force acts on the pressing end of the key 21, the key 21 is pressed down by the external force because the elastic plate 23 connecting the key 21 and the mounting plate 22 is an elastic element; when the external force is canceled, the push button 21 is restored to the original position of the non-pressed state by the restoring force of the elastic plate 23.

As shown in the figure, the keyboard support 10 has a T-shaped cross section, the web 13 of the keyboard support 10 is located below the keys 20, the first wing plate 11 and the second wing plate 12 of the keyboard support 10 are respectively provided at the middle portions thereof with a first mounting groove 111 and a fixing groove 121, the groove length directions of the first mounting groove 111 and the fixing groove 121 are the same as the length direction of the keyboard support 10. In order to facilitate production and installation of the keys 20, the section of the strip-shaped keyboard support 10 is in a T shape, a first mounting groove 111 formed in the first wing plate 11 of the keyboard support 10 is used for installing the keys 20, the selected screws are self-tapping screws, meanwhile, the groove width of the first mounting groove 111 is slightly smaller than the small diameter of the screws, the firmness of screw installation is guaranteed, when the keyboard support is installed, the screws penetrate through mounting through holes 221 of the mounting plate 22, the self-tapping screws are utilized, the screws are screwed in the first mounting groove 111, and the keys 20 are firmly installed on the keyboard support 10.

In order to further ensure that the key 20 does not deviate in position on the keyboard support 10 and at the same time ensure that the key 20 is perpendicular to the keyboard support 10 when being installed, a limiting structure is formed between the key 20 and the keyboard support 10, namely, the first installation groove 111 is a stepped groove formed by an upper wide groove 112 and a lower narrow groove 113, and the two side groove walls of the upper wide groove 112 and the lower narrow groove 113 are parallel to each other. The lower plate surface of the mounting plate 22 is provided with two limiting plates 222 arranged at intervals, the plate surfaces of the limiting plates 222 are perpendicular to the plate surface of the mounting plate 22, the plate length direction is the same as the plate length direction of the mounting plate 22, and the distance between the outer side surfaces of the two limiting plates 222 is the same as the distance between the two inner side walls of the upper wide groove 112. During installation, the two limit plates 222 on the installation plate 22 are clamped in the upper wide groove 112, so that the installation position of the key 20 is ensured, and the key 20 is prevented from shaking left and right on the keyboard support 10 after installation.

In addition, as shown in fig. 2, the set of keys 20 is generally composed of three keys 20, the mounting plates 22 of the three keys 20 are stacked together, and the limit plate 222 of the upper mounting plate 22 is placed on the plate surface of the lower mounting plate 22, while the keys 21 are arranged in a staggered manner.

The panel surface of the web 13 of the keyboard support 10 is provided with a mounting bar 131, and the length direction of the mounting bar 131 is the same as that of the keyboard support 10; the top surface of the mounting bar 131 is provided with a scale plate 30, a scale conductive adhesive 40 is arranged between the upper part of the scale plate 30 and the keyboard support 10, the key 21 is pressed by external force to press and extrude the scale conductive adhesive 40, and after the external force is cancelled, the key 21 is restored to the original position of the non-pressed state under the restoring force action of the elastic plate 23 and the scale conductive adhesive 40. When the musical instrument is used, the key 21 is pressed down and the musical scale conductive adhesive 40 is squeezed, the musical scale conductive adhesive 40 transmits a signal to the sound producing device and produces musical instrument sound, the key 21 is released, and the key 21 is restored to the original position of the non-pressed state under the restoring force action of the elastic plate 23 and the musical scale conductive adhesive 40.

In order to facilitate the installation of the musical scale plate 30, the second mounting groove 132 with a notch facing the top surface is arranged on the mounting bar 131, and the length direction of the second mounting groove is the same as the length direction of the mounting bar 131. Install the musical scale board 30 on the mounting bar 131 through the screw, the screw that also chooses for use here is self-tapping screw, and the groove width of mounting groove two 132 is slightly less than the path of screw, guarantees the fastness of screw installation.

The supporting plates 14 arranged at intervals are arranged between the web plate 13 and the scale plate 30, the plate surface of each supporting plate 14 is perpendicular to the web plate 13, the plate height of each supporting plate 14 is the same as the height of the corresponding mounting bar 131, the supporting plates 14 are located under the scale conductive adhesive 40, and at least two supporting plates 14 are arranged, so that the scale plate 30 is not deformed in the pressing process, and the scale conductive adhesive 40 is supported by the supporting plates 14 when the keys 21 are pressed to extrude the scale conductive adhesive 40, and signals are transmitted to the sound generating device by the scale conductive adhesive 40 in a sufficient compression amount.

The lower plate surface of the web 13, namely the opposite surface of the surface where the supporting plate 14 is located, is also provided with the supporting plates 14 which are arranged at intervals, and the supporting plates 14 are used for supporting the keyboard support 10 and the base of the electronic organ, so that the stability of the keyboard support 10 on the base of the electronic organ is ensured.

As shown in the figure, the end of the web 13 is provided with a vertical plate 50 which is vertically arranged, the upper end of the vertical plate 50 is turned and rolled towards the web 13 to be in a closing-up shape, the plate edge of the scale plate 30 is abutted against the vertical plate 50, and the plate body is positioned between the support plate 14 and the turning end of the vertical plate 50. In order to ensure the stability of the sound board 30 after installation, the end of the web 13 is provided with a vertical board 50 which is vertically arranged, the outer side board edge of the sound board 30 is flush with the inner side board edge of the vertical board 50 to abut against, and the sound board 30 is inserted between the rolling end of the vertical board 50 and the top surface of the support board 14.

As shown in fig. 5, an L-shaped limiting claw 60 is arranged below the overhanging end of the key 21, and the hook end of the limiting claw 60 faces the mounting plate 22; an upper baffle 51 which is vertically arranged is arranged on the outer side surface of the vertical plate 50 close to the upper end part, and a lower baffle 52 which is vertically arranged is arranged on the outer side surface close to the lower end part; the lower plate surface of the upper baffle plate 51 and the upper plate surface of the lower baffle plate 52 are respectively provided with a first cushion pad 71 and a second cushion pad 72, and when the key 21 is in a pressing state, the lower end surface of the limiting claw 60 is abutted against the second cushion pad 72; when the push button 21 is in the non-pressed state, the upper end surface of the limiting claw 60 abuts against the first cushion pad 71.

In addition, in order to reduce the weight of the keyboard support 10 and provide better sound effect, the first wing plate 11, the second wing plate 12 and the web plate 13 are all hollow structures inside, so that the wall thickness of the keyboard support 10 is uniform.

Claims

1. A key mounting structure including a keyboard support (10) for mounting a key (20), characterized in that: the keyboard support (10) is a strip-shaped structure with the same cross section at any position along the length direction and is manufactured through an extrusion molding process, one end of each key (20) is fixedly connected with the keyboard support (10), the other end of each key is in a free overhanging shape, the length direction of each key (20) is perpendicular to the length direction of the keyboard support (10), and the keys (20) are equidistantly arranged on the keyboard support (10).

2. An electric piano characterized in that: the mounting structure of a key of claim 1, wherein the key (20) includes an elongated key (21), one end of the key (21) is a mounting end, the other end of the key is a pressing end, the mounting end is provided with a mounting plate (22), the mounting plate (22) is provided with a mounting through hole (221) with a hole core perpendicular to the plate surface, and the key (21) is fixedly connected with the mounting plate (22) through an elastic plate (23).

3. The electric piano according to claim 2, wherein: the cross-section of keyboard support (10) is the T type, and web (13) of keyboard support (10) are located the below of key (20), and the middle part of first pterygoid lamina (11), second pterygoid lamina (12) of keyboard support (10) is equipped with notch mounting groove (111), fixed slot (121) towards the side respectively, and the groove length direction of mounting groove (111) and fixed slot (121) is the same with the length direction of keyboard support (10).

4. The electric piano according to claim 3, wherein: the first mounting groove (111) is a step-shaped groove formed by an upper wide groove (112) and a lower narrow groove (113), and the groove walls on the two sides of the upper wide groove (112) and the lower narrow groove (113) are parallel to each other.

5. The electric piano according to claim 4, wherein: the lower plate surface of mounting panel (22) is equipped with two limiting plates (222) of interval arrangement, and the face perpendicular to the face of mounting panel (22) and the board length direction of limiting plate (222) are the same with the board length direction of mounting panel (22), and the distance of two limiting plate (222) lateral surfaces is the same with the distance between two inside walls of last wide groove (112).

6. The electric piano according to claim 3, wherein: a mounting bar (131) is arranged on the surface of the web plate (13) of the keyboard support (10), and the length direction of the mounting bar (131) is the same as that of the keyboard support (10);

the keyboard is characterized by further comprising a scale plate (30) arranged on the top surface of the mounting bar (131), scale conductive adhesive (40) is arranged between the upper portion of the scale plate (30) and the keyboard support (10), when the key (21) is pressed by external force to be pressed downwards, the scale conductive adhesive (40) is squeezed, and after the external force is cancelled, the key (21) is restored to the initial position of the non-pressed state under the restoring force action of the elastic plate (23) and the scale conductive adhesive (40).

7. The electric piano according to claim 6, wherein: and the mounting bar (131) is provided with a second mounting groove (132) with a notch facing the top surface, and the length direction of the second mounting groove is the same as that of the mounting bar (131).

8. The electric piano according to claim 6, wherein: supporting plates (14) arranged at intervals are arranged between the web plate (13) and the scale plate (30), the surface of each supporting plate (14) is perpendicular to the web plate (13), the height of each supporting plate (14) is the same as that of the mounting bar (131), and the supporting plates (14) are located right below the scale conductive adhesive (40).

9. The electric piano according to claim 8, wherein: the end of web (13) is equipped with vertical riser (50) of arranging, and the upper end of riser (50) is the binding off form to web (13) direction turn-ups, and the flange edge of sound board (30) supports with riser (50) and the plate body is in between backup pad (14) and riser (50) turn-ups end.

10. The electric piano according to claim 9, wherein: an L-shaped limiting claw (60) is arranged below the overhanging end of the key (21); an upper baffle (51) which is vertically arranged is arranged on the outer side surface of the vertical plate (50) close to the upper end part, and a lower baffle (52) which is vertically arranged is arranged on the outer side surface close to the lower end part;

the lower plate surface of the upper baffle plate (51) and the upper plate surface of the lower baffle plate (52) are respectively provided with a first cushion pad (71) and a second cushion pad (72), and when the key (21) is in a pressing state, the lower end surface of the limiting claw (60) is abutted against the second cushion pad (72); when the key (21) is in an unpressed state, the upper end surface of the limiting claw (60) abuts against the first cushion pad (71).