CN215731438U - Mute button - Google Patents

Abstract

The mute button of the utility model comprises a switch, a keycap and a cushion pad. The key cap is arranged on the switch and can move up and down relative to the switch, the buffer pad is arranged between the switch and the key cap, when the key cap is not pressed by external force, the buffer pad is positioned above the switch and is not contacted with the switch, when the key cap is pressed by external force, the buffer pad is abutted to the switch, and the buffer pad has a nonlinear elasticity coefficient, so that in the process that the key cap is pressed by external force, the buffer pad can generate micro elasticity to perform small buffering in advance, until a large buffering is formed after the key cap is pressed to stop, the pressing stroke can not be reduced, the mute can be kept, and the pressing hand feeling can be maintained.

Description

Mute button

Technical Field

The present invention relates to a key, and more particularly, to a mute key capable of keeping mute and maintaining a pressing feeling.

Background

Generally, the movement structure of a computer key can be divided into two types, i.e. mechanical type and membrane type, in which the key base is directly collided by the key cap, which easily generates rather annoying noise when in use, and the noise can affect other people around, so that the computer key cannot be used in a place where silence is needed, such as a library.

In order to solve the above problems, the keycap disclosed in CN 208460630U has a notch at each of the four ribs, and a noise reduction rubber ring is disposed at each of the four notches, so as to provide noise reduction effect. In the above patent document, when the key cap is pressed by an external force, the noise reduction rubber ring immediately generates a buffer when contacting the key cap cover, and thus the stroke of the key is reduced, which may affect the pressing feeling of the key.

In addition, the key cap disclosed in TW 201501155 has a body and a buffer member, the buffer member is disposed on a side of the body opposite to the contact surface, and when the shaft element is located at the moving position, the buffer member abuts against the contact surface and generates elastic deformation corresponding to the contact surface. In the above patent documents, when the key cap is pressed by an external force, the buffer member immediately generates a buffer when contacting the contact surface, and the stroke of the key is reduced, which affects the pressing feeling of the key.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a mute button which has multi-section elasticity and can keep mute and maintain pressing hand feeling when being pressed.

In order to achieve the above objective, the mute button of the present invention comprises a switch, a key cap, and a cushion. The switch is provided with a key shaft seat and a key shaft, the key shaft seat is provided with a containing groove extending downwards from the top surface of the key shaft seat, and the key shaft is arranged in the containing groove of the key shaft seat in a way of being capable of moving up and down and protrudes out of the top surface of the key shaft seat; the key cap is provided with a shaft sleeve, and the key cap is sleeved on the key shaft of the switch through the shaft sleeve, so that the key cap drives the key shaft to move downwards to a pressing position from an initial position relative to the key shaft seat when being pressed by external force; the buffer pad has a nonlinear elasticity coefficient, is arranged between the switch and the keycap, and is not contacted with the top surface of the key shaft seat when the keycap is not acted by external force and is positioned at the initial position, and is abutted against the top surface of the key shaft seat when the keycap is pressed by external force and is positioned at the pressing position.

Therefore, the buffer pad has multi-stage elasticity, so that in the process that the keycap is pressed by external force, the buffer pad can generate micro elasticity to perform small buffering in advance until large buffering is formed after the pressing is stopped, the pressing stroke cannot be reduced, and the mute and pressing hand feeling can be maintained.

Preferably, the cushion pad has an inner ring portion, an outer ring portion and an intermediate connecting portion, the inner ring portion is sleeved on the shaft sleeve of the key cap, the outer ring portion is located on the periphery of the inner ring portion and coaxially corresponds to the inner ring portion, the intermediate connecting portion is integrally connected between the inner ring portion and the outer ring portion and extends in a downward inclined manner from the inner ring portion to the outer ring portion, and thus a multi-section elastic buffering effect can be generated.

Preferably, the outer peripheral surface of the shaft sleeve of the keycap is further connected with a rib plate, and the rib plate abuts against the abutting surface of the keycap. On the basis, when the keycap is pressed by external force, the keycap presses the inner ring part of the cushion pad by the rib plate and the middle connecting part with the cushion pad generates elastic deformation, so that the cushion pad generates tiny elasticity to perform small buffering.

The details of the construction, features, assembly, and manner of use of the mute button provided by the present invention are set forth in the detailed description of the preferred embodiments which follow. However, it should be understood by those skilled in the art that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

Drawings

Fig. 1 is a perspective view of a mute key according to the present invention before being pressed.

Fig. 2 is an exploded perspective view of the mute button of the present invention.

Fig. 3 is a cross-sectional view of a mute button of the present invention before being pressed.

Fig. 4 is a cross-sectional view of the mute button of the present invention after being pressed.

In the figure, the position of the upper end of the main shaft,

10: mute button

20: switch with a switch body

21: key shaft seat

22: the top surface

23: containing groove

24: key shaft

25: base part

26: cross axle part

30: key cap

31: pressing surface

32: shaft sleeve

33: shaft hole

34: rib plate

P1: initial position

P2: pressing position

40: buffer cushion

42: inner ring part

44: outer ring part

46: an intermediate connecting portion.

Detailed Description

Applicants first describe herein, throughout this specification, including the examples described below and in the claims, directional terms are used with respect to the drawings and directional references. Next, in the embodiments and the drawings to be described below, the same component numbers denote the same or similar components or structural features thereof.

Referring to fig. 1 and 2, the mute button 10 of the present invention includes a switch 20, a key cap 30, and a cushion 40.

The switch 20 has a key shaft seat 21 and a key shaft 24. The key shaft seat 21 has a top surface 22 and a receiving groove 23 extending downward from the top surface 22; the key shaft 24 is assembled in the receiving groove 23 of the key shaft seat 21 in a manner of being capable of moving up and down and protrudes from the top surface 22 of the key shaft seat 21, and the key shaft 24 has a base portion 25 and a cross shaft portion 26 protruding upward from the base portion 25.

The key cap 30 has a pressing portion 31, the key cap 30 integrally extends downward from a bottom surface of the pressing portion 31 to form a shaft sleeve 32, the shaft sleeve 32 has a cross-shaped shaft hole 33, and the key cap 30 further has four rib plates 34, the four rib plates 34 are vertically connected to an outer peripheral surface of the shaft sleeve 32 and are arranged at equal intervals relative to the shaft hole 33. As shown in fig. 3, the key cap 30 is sleeved on the cross shaft 26 of the key shaft 24 through the shaft hole 33 of the shaft sleeve 32, and on the basis, when the key cap 30 is pressed by an external force, the bottom end of the shaft sleeve 32 will press against the base 25 of the key shaft 24 and descend into the accommodating groove 23 together with the key shaft 24, so that the key cap 30 drives the key shaft 24 to move downward relative to the key shaft seat 21 from the initial position P1 shown in fig. 3 to the pressing position P2 shown in fig. 4, thereby enabling the key shaft 24 to actuate a switch component (not shown) disposed inside the key shaft seat 21.

The cushion pad 40 is made of an elastic material such as rubber. As shown in FIG. 2, the cushion pad 40 has an inner ring portion 42, an outer ring portion 44 and an intermediate connecting portion 46, the outer ring portion 44 surrounds the outer periphery of the inner ring portion 42 and coaxially corresponds to the outer ring portion 44, the intermediate connecting portion 46 is integrally connected between the inner ring portion 42 and the outer ring portion 44 and extends obliquely downward from the inner ring portion 42 to the outer ring portion 44, the thickness of the inner ring portion 42 is greater than that of the outer ring portion 44, the thickness of the outer ring portion 44 is greater than that of the intermediate connecting portion 46, and after the cushion pad 40 deforms under a force, the stress and the strain of the cushion pad can present a nonlinear relationship through three different elastic structures, so that the cushion pad 40 has a nonlinear spring coefficient. As shown in fig. 3, the buffer 40 is disposed between the switch 20 and the key cap 30, and further, the inner ring portion 42 of the buffer 40 is tightly fitted over the sleeve 32 of the key cap 30, and the top surface of the inner ring portion 42 of the buffer 40 abuts against the four ribs 34 of the key cap 30, and when the key cap 30 is located at the initial position P1 shown in fig. 3, the buffer 40 is located above the key seat 21 and does not contact the top surface 22 of the key seat 21.

As can be seen from the above description, when the key cap 30 is pressed by an external force, the key cap 30 will first press the inner ring portion 42 of the cushion pad 40 by the four ribs 34, and the middle connection portion 46 with the cushion pad 40 generates elastic deformation, so that the cushion pad 40 generates a slight elastic force to perform small buffering, and then when the key cap 30 is continuously pressed by the external force and moves down to the pressing position P2 shown in fig. 4, the cushion pad 40 will jointly abut against the top surface 22 of the key seat 21 by the inner ring portion 42, the outer ring portion 44 and the middle connection portion 46, that is, the entire bottom surface of the cushion pad 40 will abut against the top surface 22 of the key seat 21, so that a large buffering is formed. In other words, the buffering pad 40 provided by the present invention has multi-stage elasticity, so that when the key cap 30 is pressed by an external force, the buffering pad 40 will generate a small elastic force to perform a small buffering in advance until a large buffering is formed after the pressing is stopped, so that the pressing stroke will not be reduced, and the silencing and the pressing feeling can be maintained. In addition, the buffering pad 40 can be arranged at the position of the switch 20 corresponding to the shaft sleeve 32 of the key cap 30 instead, and the buffering pad 40 can be arranged between the switch 20 and the key cap 30 to achieve the same creation purpose of the scheme.

Claims (4)

1. A mute button, comprising:

the key shaft seat is provided with a top surface and an accommodating groove extending downwards from the top surface, and the key shaft can be arranged in the accommodating groove of the key shaft seat in a vertically-movable manner and protrudes out of the top surface of the key shaft seat;

the key cap is provided with a shaft sleeve, and the key cap is sleeved on the key shaft of the switch by the shaft sleeve, so that the key cap drives the key shaft to move downwards from an initial position to a pressing position relative to the key shaft seat when being pressed by external force; and

a buffer pad arranged between the switch and the keycap, wherein when the keycap is at the initial position, the buffer pad is not contacted with the top surface of the key shaft seat, when the keycap is at the pressing position, the buffer pad is abutted against the top surface of the key shaft seat, and the buffer pad has nonlinear elasticity coefficient.

2. The mute button as claimed in claim 1, wherein the cushion pad has an inner ring portion, an outer ring portion and a middle connecting portion, the inner ring portion is disposed on the sleeve of the key cap, the outer ring portion surrounds the outer periphery of the inner ring portion and coaxially corresponds to the inner ring portion, and the middle connecting portion is connected between the inner ring portion and the outer ring portion and extends obliquely downward from the inner ring portion to the outer ring portion.

3. The mute button as claimed in claim 2, wherein the outer periphery of the sleeve of the key cap is further connected to a rib, and the rib abuts against the top surface of the inner ring portion of the cushion pad.

4. The mute button as claimed in claim 1, wherein the cushion is disposed at the switch and corresponds to the position of the sleeve of the key cap.

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