CN216817802U

CN216817802U - Small-size hand-held type electronic musical instrument and side button mechanism thereof

Info

Publication number: CN216817802U
Application number: CN202220179782.XU
Authority: CN
Inventors: 胡珍祥
Original assignee: Shenzhen Kaifa Technology Co Ltd
Current assignee: Shenzhen Kaifa Technology Co Ltd
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2022-06-24
Anticipated expiration: 2032-01-20

Abstract

The utility model discloses a small handheld electronic musical instrument and a side key mechanism thereof, wherein the side key mechanism comprises a side key, a rotating shaft extending along a first direction, and an elastic buffer part, the first direction is the length direction of a shell, a key through hole for the side key to penetrate through and move is formed in the side wall of the shell, the side key rotates around the first direction when being pressed through the rotating shaft, the elastic buffer part and the rotating shaft are positioned in the shell, the elastic buffer part is connected with the side key and provides pressing resistance for the side key, the pressing resistance lifts the side key to prevent the side key from contacting a tact switch in the shell, and the tact switch is pressed by overcoming the pressing resistance when the side key is pressed and rotates.

Description

Small-size hand-held type electronic musical instrument and side button mechanism thereof

Technical Field

The utility model relates to the field of electronic products, in particular to a small handheld electronic musical instrument and a side key mechanism thereof.

Background

At present, small handheld electronic musical instruments are entering the lives of people, and electronic musical instrument products will be popularized further. The small-sized hand-held electronic musical instrument is characterized in that an upper cover and a bottom cover are spliced to form a hollow cylindrical shell, a circuit board is arranged in the cylindrical shell, a plurality of contacts are arranged on the circuit board, a plurality of keys are embedded and installed on the upper cover, and the keys are contacted with the contacts on the internal circuit board by pressing the keys, so that the functions corresponding to the keys can be realized. Because the operation of considering some buttons more accords with user's custom, some buttons can't set up on the upper cover, need shift to the lateral part installation of cylindricality casing, and existing side button mechanism operates inconveniently when pressing, is not conform to human mechanics characteristics, has a long distance to fall empty moreover in the process of pressing for electronic musical instrument plays the button and feels well, and to a great extent has influenced user experience effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a small handheld electronic musical instrument and a side key mechanism thereof, aiming at the defects of poor hand feeling and influence on user experience effect of the keys in the prior art.

The technical scheme adopted by the utility model for solving the technical problem is as follows: the side key mechanism of the small handheld electronic musical instrument is constructed and arranged on the side wall of a shell of the electronic musical instrument, the side key mechanism comprises side keys, a rotating shaft and an elastic buffer piece, the rotating shaft extends along a first direction, the first direction is the length direction of the shell, key through holes for the side keys to penetrate through and move are formed in the side wall of the shell, and the side keys can rotate around the first direction when being pressed through the rotating shaft;

the elastic buffer part and the rotating shaft are located in the shell, the elastic buffer part is connected with the side key and provides pressing resistance for the side key, the pressing resistance enables the side key to be lifted up to be incapable of contacting with a tact switch in the shell, and the side key is pressed to rotate and overcomes the pressing resistance to press the tact switch.

Preferably, the side key is divided into a first rotating arm and a second rotating arm which are distributed on two sides of the rotating shaft along the extending direction of the side key, the first rotating arm penetrates through the key through hole, the elastic buffer part is connected with the second rotating arm, and the first rotating arm can drive the second rotating arm to rotate to overcome the pressing resistance when being pressed and rotated.

Preferably, one side of the second rotating arm, which faces/departs from the tact switch, protrudes to form a first positioning column, a second positioning column is formed in the housing, and two ends of the elastic buffer part are respectively sleeved on the first positioning column and the second positioning column.

Preferably, a pressing projection facing the tact switch and used for pressing the tact switch is formed by protruding one side of the second rotating arm facing the tact switch, the pressing projection and the first positioning column are arranged at intervals along the length direction of the second rotating arm, and the pressing projection is closer to the rotating shaft relative to the first positioning column.

Preferably, the casing includes upper cover and support, set up the circuit board in the upper cover, the setting of dabbing the switch is in on the circuit board and towards the support, the upper cover top is toward towards the direction protrusion of support forms the second reference column, set up on the circuit board with the just right through-hole of second reference column is in order to supply elastic buffer and/or the second reference column passes through.

Preferably, the housing comprises an upper cover and a support, the upper cover is located above the housing, the support is located below the housing, a circuit board is arranged in the upper cover, and the tact switch is arranged on the circuit board and faces the support;

the first rotating arm is divided into a rotating arm and a pressing arm along the extending direction of the first rotating arm, the rotating arm extends obliquely upwards from the second rotating arm to form an obtuse angle with the second rotating arm, and the pressing arm extends obliquely downwards from the end part of the rotating arm far away from the second rotating arm.

Preferably, the side button is provided with a rotating shaft hole, the rotating shaft movably penetrates through the rotating shaft hole so that the side button can rotate around the rotating shaft, two fixing lugs are arranged in the shell along the first direction at intervals, and two ends of the rotating shaft are fixedly connected with the fixing lugs.

Preferably, the rotating shaft is sleeved with a plurality of side keys, and the side keys are arranged at intervals along a first direction.

Preferably, the elastic buffer is a spring.

In another aspect, a small hand-held electronic musical instrument is constructed comprising a housing and a side key mechanism as previously described.

The small-sized hand-held electronic musical instrument and the side key mechanism thereof have the following beneficial effects: when a user does not press the button, the side button cannot press the tact switch due to the action of the elastic buffer piece, the side button rotates around the length direction of the shell when pressed through the rotating shaft, and the pressing resistance of the elastic buffer piece is overcome when the side button rotates after being pressed, so that the tact switch is pressed, and therefore the elastic buffer piece can prevent the pressing process from falling empty, the button is better in hand feeling, and the user experience effect is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts:

FIG. 1 is a schematic view of the key arrangement of the small hand-held electronic musical instrument of the present invention;

FIG. 2 is a top plan view of the small hand-held electronic musical instrument of the present invention;

FIG. 3 is an exploded view of the novel small hand-held electronic musical instrument;

FIG. 4 is an enlarged partial schematic view of FIG. 3;

FIG. 5 is a schematic sectional view taken along line A-A in FIG. 2;

FIG. 6 is a schematic structural diagram of a side key;

fig. 7 is a force diagram of the side key mechanism.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Exemplary embodiments of the utility model are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the embodiments and specific features in the embodiments of the present invention are described in detail in the present application, but not limited to the present application, and the features in the embodiments and specific features in the embodiments of the present invention may be combined with each other without conflict.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

The terms including ordinal numbers such as "first", "second", and the like used in the present specification may be used to describe various components, but the components are not limited by the terms. These terms are used only for the purpose of distinguishing one constituent element from other constituent elements. For example, a first component may be named a second component, and similarly, a second component may also be named a first component, without departing from the scope of the present invention.

Referring to fig. 1 to 3, the small handheld electronic musical instrument of the present embodiment includes a housing, a circuit board 21 mounted inside the housing, a plurality of face keys 2 to 8 mounted on the top of the housing, and a plurality of

side keys

9, 10 mounted on the left side and a plurality of

side keys

11, 12 mounted on the right side of the housing.

The shell is divided into an upper cover 1 and a support 22 at the bottom in the thickness direction, the upper cover 1 and the support 22 are assembled to form the shell, the circuit board 21 is installed inside the upper cover 1, the cross sections of the upper cover 1 and the support 22 are approximately in a U-shaped layer, the upper cover 1 and the support 22 are fixed through screws or buckles, and the support 22 presses the circuit board 21 and the tops of the side keys.

Referring to fig. 3, the circuit board 21 is provided with tact switches 30, and each of the

side keys

11, 12, 9, 10 corresponds to one tact switch 30.

The front keys 2-8 are embedded in the top of the upper cover 1, the front keys 2-8 are used for playing, the specific structure of the front keys adopts the existing scheme, and the front keys are not improved.

In this embodiment, the

side buttons

9 and 10 and the

side buttons

11 and 12 are mainly embedded in the left and right side walls of the upper cover 1. The function of the

side keys

11, 12, 9, 10 can be set as desired, for example the

side keys

9, 10 can be set for assisting tuning and 11, 12 for playing. The side key mechanisms corresponding to the

side keys

11, 12, 9 and 10 are the main improvements of the utility model.

Referring to fig. 3, the side key mechanism includes a side key, a rotation shaft extending in a first direction, and an elastic buffer. The first direction is a length direction of the housing. The elastic buffer is preferably a spring 29, but other elements with elastic properties may of course be substituted.

The rotating shaft is sleeved with a plurality of side keys, and the side keys are arranged at intervals along a first direction. In theory, one side key mechanism may be configured for each side key, but in order to simplify the structure and save space, two side keys are installed in one side key mechanism in the present embodiment, the

left side keys

9 and 10 correspond to one side key mechanism, and the

right side keys

11 and 12 correspond to one side key mechanism, so that the

left side keys

9 and 10 share one rotating shaft 28, and the

right side keys

11 and 12 share one rotating shaft 27.

Referring to fig. 3-4, taking the

left side key

9, 10 corresponding to a side key mechanism as an example, the

side key

9, 10 is provided with

rotation shaft holes

215, 214, the rotation shaft 28 movably passes through the

rotation shaft holes

215, 214 so that the

side key

9, 10 can rotate around the rotation shaft 28, two fixing lugs protrude from the left side wall in the upper cover 1, the two fixing lugs are arranged along the first direction at intervals, the two fixing lugs are respectively provided with rotation

shaft mounting holes

213, 216, and two ends of the rotation shaft 28 are sleeved into the rotation

shaft mounting holes

213, 216 to be fixedly connected with the two fixing lugs.

Although in the present embodiment the

side keys

9, 10 and the

side keys

11, 12 are rotated about the

rotary shafts

28, 27. In fact, when a single rotating shaft is provided with a single side key, the rotation of the side key can be realized in two ways, namely, the rotating shaft and the side key cannot rotate relatively, for example, the rotating shaft and the side key can be integrated, and the rotating shaft can rotate relative to the shell, for example, the rotating shaft is rotatably assembled with the fixing lug. Alternatively, the same as the present embodiment, namely, the rotation shaft and the side key can be relatively rotated.

The left side wall of the upper cover 1 is provided with key through

holes

210 and 211 through which the

side keys

9 and 10 penetrate and move, the

side keys

9 and 10 pass through the key through

holes

210 and 211 and then rotate around the first direction through the rotating shaft 28 when being pressed, for example, the parts of the

side keys

9 and 10 extending out of the left side wall of the upper cover 1 are bent downwards so as to drive the

side keys

9 and 10 to rotate when being pressed. The spring 29 is connected to the

side keys

9 and 10 and provides a pressing resistance to the

side keys

9 and 10, the pressing resistance lifts the

side keys

9 and 10 so that the side keys cannot contact the tact switches 30 in the upper cover 1, and when the

side keys

9 and 10 are pressed and rotated, the corresponding tact switches 30 are pressed against the pressing resistance.

Specifically, taking the side key 9 as an example, referring to fig. 4-6, the side key 9 is divided into a first rotating arm 91 and a second rotating arm 92 distributed on both sides of the rotating shaft 28 along the extending direction thereof. The first rotating arm 91 passes through the key through hole 210, the spring 29 is connected with the second rotating arm 92, and when the first rotating arm 91 is pressed and rotated, the second rotating arm 92 can be driven to rotate so as to overcome the pressing resistance.

In theory, the second rotating arm 92 can overcome the pressing resistance by compressing the spring 29, or can overcome the pressing resistance by extending the spring 29, in this embodiment, by compressing the spring 29. Therefore, a first positioning column 219 is formed by projecting one side of the second rotating arm 92 facing the tact switch 30, a second positioning column 217 is formed in the housing, and two ends of the spring 29 are respectively sleeved on the first positioning column 219 and the second positioning column 217.

The second positioning post 217 may be theoretically connected to the upper cover 1 or the circuit board 21, in this embodiment, the top of the upper cover 1 protrudes toward the support 22 to form the second positioning post 217, and the circuit board 21 is provided with a through hole facing the second positioning post 217 for the spring 29 and the second positioning post 217 to pass through.

One side of the second rotating arm 92 facing the tact switch 30 protrudes to form a pressing bump 221 facing the tact switch 30 for pressing the tact switch 30, and the pressing bump 221 is always right below the tact switch 30 no matter how the side key 9 rotates. The pressing protrusions 221 and the first positioning posts 219 are spaced apart along the length direction of the second rotating arm 92, and the pressing protrusions 221 are closer to the rotating shaft than the first positioning posts 219, for example, in the embodiment, the first positioning posts 219 are near the free end of the second rotating arm 92 away from the rotating shaft 28, and the pressing protrusions 221 are located between the first positioning posts 219 and the rotating shaft 28.

Referring to fig. 6, the first rotating arm 91 is substantially L-shaped and is divided into a rotating arm 911 and a pressing arm 912 along the extending direction thereof, the rotating arm 911 extends obliquely upward from the second rotating arm 92 to form an obtuse angle between the rotating arm 911 and the second rotating arm 92, and the pressing arm 912 extends obliquely downward from the end of the rotating arm 911 away from the second rotating arm 92, so that a user can press the pressing arm 912 to force the first rotating arm 91 to rotate.

Referring to fig. 7, when pressed, F1 is the pressing force of the user, L1 is the length of the pressing arm 912, F2 is the pressing force of the spring 29, L2 is the arm length of the spring 29, F3 is the pressing force of the tact switch 30, L3 is the pressing arm of the tact switch 30, and a1 is the rotational stroke of the side key 9. When a user presses down the pressing arm 912, the pressing arm 912 drives the rotating arm 911 and the second rotating arm 92 to rotate around the rotating shaft 28, the second rotating arm 92 rotates to compress the pressure spring 29, and the pressing bump 221 on the side key 9 presses down the tact switch 30 along with the compression of the pressure spring 29; when the user releases the key 9, the compression spring 29 pushes the side key 9 to return. The modeling of the side keys can be adjusted according to the user experience requirements, the key stroke and the pressing force are customized, and the product is more in line with ergonomics. This embodiment simple structure, the button is felt better, has promoted user experience effect.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. A side key mechanism of a small handheld electronic musical instrument is arranged on the side wall of a shell of the electronic musical instrument and is characterized in that the side key mechanism comprises side keys, a rotating shaft and an elastic buffer piece, wherein the rotating shaft extends along a first direction, the first direction is the length direction of the shell, the side wall of the shell is provided with key through holes for the penetration and the movement of the side keys, and the side keys rotate around the first direction when being pressed through the rotating shaft;

2. The side key mechanism of small handheld electronic musical instrument according to claim 1, wherein said side key is divided into a first arm and a second arm along its extending direction, said first arm passing through said key through hole, said elastic buffer member being connected to said second arm, said first arm being capable of driving said second arm to rotate when rotated by being pressed to overcome said pressing resistance.

3. The side key mechanism of small handheld electronic musical instrument according to claim 2, wherein a side of said second rotating arm facing/departing from said tact switch protrudes to form a first positioning post, a second positioning post is formed in said housing, and two ends of said elastic buffer member are respectively fitted over said first positioning post and said second positioning post.

4. The side key mechanism of small handheld electronic musical instrument according to claim 3, wherein a pressing projection facing the tact switch is formed by projecting a side of the second rotating arm facing the tact switch to press the tact switch, the pressing projection and the first positioning post are arranged at intervals along a length direction of the second rotating arm, and the pressing projection is closer to the rotating shaft than the first positioning post.

5. The side key mechanism of small handheld electronic musical instrument according to claim 4, wherein said housing includes an upper cover and a support, a circuit board is disposed in said upper cover, said tact switch is disposed on said circuit board and faces said support, a top of said upper cover protrudes toward a direction of said support to form said second positioning column, and said circuit board is provided with a through hole facing said second positioning column for said elastic buffer and/or said second positioning column to pass through.

6. The side key mechanism of a small hand-held electronic musical instrument according to claim 2, wherein the housing includes an upper cover located above and a support located below, a circuit board is provided in the upper cover, and the tact switch is provided on the circuit board and faces the support;

7. The side key mechanism of small handheld electronic musical instrument as defined in claim 1, wherein said side key has a hole for receiving a shaft, said shaft being movable through said hole for allowing said side key to rotate around said shaft, said housing having two fixing lugs spaced apart along said first direction, said shaft being fixedly connected at two ends thereof to said fixing lugs.

8. The side key mechanism of small handheld electronic musical instrument according to claim 1, wherein a plurality of said side keys are fitted around said rotary shaft, and said plurality of said side keys are arranged at intervals along a first direction.

9. The side key mechanism of a small handheld electronic musical instrument according to claim 1, wherein said elastic buffer member is a spring.

10. A small hand-held electronic musical instrument comprising a housing and a side key mechanism according to any one of claims 1 to 9.