CN101645360A - Key structure - Google Patents

Abstract

The present invention is a key structure, which includes a base; a key cap, which is arranged on the base; a support member, which is arranged between the base and the key cap, and the support member has a first pivot part and a second pivot part, the first pivot part is pivoted to the base, and the second pivot part is pivoted to the key cap; a balance bar, which is arranged between the base and the key cap, and the balance bar has an end and a third pivot part, the end is received in the base, and the third pivot part is pivoted to the key cap; and an elastic element, which is arranged between the base and the key cap; wherein, the key cap can move up and down relative to the base by the support member, the balance bar and the elastic element.

Description

key structure

technical field

The invention relates to a button structure, especially a button structure that is easy to assemble, reduces cost and has no noise.

Background technique

In today's era of computer popularization, not only the progress and pursuit of computer performance, but also the convenience and aesthetics of its peripheral equipment such as mouse, keyboard and other auxiliary tools are also more and more valued by users. With the information industry With the development of the development, whether it is for work or personal use, desktop computers and notebook computers have been popularized in the lives of the general public, because computers are widely used in various occasions, such as information transportation, business contacts, customer contact, document processing And computer drawing etc., so the importance of computer for daily life is evident, but one of the most important input devices in computer equipment is exactly keyboard.

Please refer to FIG. 1 and FIG. 2 , which are an exploded perspective view and a cross-sectional side view respectively showing a known button structure. A first balance bar 1 and a second balance bar 2 are respectively disposed between a base 3 and a keycap 4 . Wherein, the first balance bar 1 has a first end portion 5 and a first pivot portion 6, and the base 3 is provided with a concave portion 7 opposite to the first end portion 5 of the first balance bar 1, and the keycap 4 is opposite to the first balance bar. The first pivot portion 6 of the 1 is provided with at least one tenon 8 . The first end portion 5 of the first balance bar 1 is accommodated in the concave portion 7 of the base 3 , and the first pivot portion 6 of the first balance bar 1 is buckled to the tenon 8 of the keycap 4 .

The second balance bar 2 has a second end portion 9 and a second pivot portion 10, and the base 3 is provided with a hole 11 opposite to the second end portion 9 of the second balance bar 2, and the keycap 4 is opposite to the second end portion 9 of the second balance bar 2. The second pivot portion 10 is provided with a fastening portion 12 . The second end portion 9 of the second balance bar 2 is inserted into the hole 11 of the base 3 , and the second pivot portion 10 of the second balance bar 2 is fastened to the fastening portion 12 of the keycap 4 .

An elastic element 13 is further added between the base 3 and the keycap 4 , and the keycap 4 can move up and down relative to the base 3 by the first balance bar 1 , the second balance bar 2 and the elastic element 13 . However, in the known technology, due to the positional relationship between the first balance bar 1 and a second balance bar 2, when the user presses the keycap 4 and makes the keycap 4 move up and down, the first balance bar 1 and the second balance bar A pad portion 14 will collide with each other to generate noise, and the second balance pole 2 and the second pad portion 15 will also collide with each other to generate noise. Since the second end 9 of the second balance pole 2 needs to be manually inserted into the hole 11 of the base 3 accurately, there is a problem of time-consuming assembly, which leads to an increase in cost. In addition, the diameter of the elastic element 13 (the smaller the diameter of the elastic element 13, the worse its elastic touch) limits the width of the second balance pole 2 (as shown by the double arrow symbol a), so the width of the first balance pole 2 is a The reduction is very limited, and because of this, the volume miniaturization of the first balance bar 1, the second balance bar 2, the base 3 and the keycap 4 is even more limited. Therefore, the known keyboard still has defects and needs to be improved.

Contents of the invention

The purpose of the present invention is to provide a keyboard structure, which is easier to assemble and can effectively reduce the manufacturing cost of the keyboard. Moreover, the supporting part is made of plastic and is made by opening a mold, which can also reduce the manufacturing cost. cost. And when the user presses the button structure of the present invention, the noise problem caused by the collision of the supporting member, the balance bar and other parts will not occur as in the known technology.

The object of the present invention is achieved like this, a kind of button structure, and this button structure comprises:

a base;

A key cap is arranged on the base;

A supporting piece is arranged between the base and the keycap, the supporting piece has a first pivotal portion and a second pivotal portion, the first pivotal portion is pivotally connected to the base, and the second pivotal portion The part is pivotally connected to the keycap;

A balance bar, located between the base and the keycap, the balance bar has an end and a third pivot joint, the end is accommodated in the base, and the third pivot joint is pivotally connected to the keycap;

an elastic element is arranged between the base and the keycap;

Wherein, the keycap moves up and down relative to the base by the support member, the balance bar and the elastic element.

Preferably, the base is provided with a first buckling portion relative to the first pivotal portion of the support for pivotal connection with the first pivotal portion of the support.

Preferably, the keycap is provided with a second buckling portion relative to the second pivotal portion of the supporting member, for pivotally connecting the second pivotal portion of the supporting member.

Preferably, the end of the base opposite to the balance pole is provided with a recess for receiving the end of the balance pole.

Preferably, the keycap is provided with a tenon relative to the third pivotal portion of the balance bar for pivotal connection with the third pivotal portion of the balance bar.

Preferably, the base is provided with a first hole for accommodating the elastic element.

Preferably, the supporting member is provided with a second hole, so that the elastic element passes through the second hole of the supporting member and is connected to the keycap.

Preferably, the keycap is provided with a protrusion relative to the elastic element, so that the elastic element is in contact with the protrusion.

Preferably, the elastic element further includes an annular portion, and the support member is provided with a recess relative to the annular portion of the elastic element, so that the recess accommodates the annular portion.

As mentioned above, in the button structure of the present invention, since the first pivotal portion of the support is pivotally connected to the base, and the second pivotal portion of the support is pivotally connected to the keycap; and the end of the balance bar is accommodated in the base, The third pivot portion of the balance bar is pivotally connected to the keycap. By the support piece, the balance bar and the elastic element, the keycap can move up and down relative to the base. The design or configuration of the support member and the balance bar becomes simplified, which makes the assembly of the keyboard easier, which can effectively reduce the manufacturing cost of the keyboard. Moreover, the support member is made of plastic and is made by mold opening. Manufacturing costs can also be reduced. And when the user presses the button structure of the present invention, the noise problem caused by the collision of the support member, the balance bar and other parts will not occur as in the known technology.

Description of drawings

Figure 1: An exploded perspective view showing the structure of a known key.

Figure 2: A cutaway side view showing a known key structure.

Fig. 3: An exploded perspective view showing the button structure of the present invention.

Fig. 4: A sectional side view showing the button structure of the present invention.

Figure number:

21---Balance bar

22---support

23---base

24---Keycap

25---end

26---The third pivot joint

27---Concave

28--- tenon

29---The first pivot joint

30---Second pivot joint

31---The first buckle part

32---Second buckling part

33---elastic element

34---The first hole

35---Second Hole

36---Bump

37---contraction part

38 --- ring part

40---Key structure

Detailed ways

While the invention will be fully described with reference to the accompanying drawings, which contain preferred embodiments of the invention, it is proceeding with the understanding that those skilled in the art may modify the invention described herein while still obtaining the benefits of the invention. Therefore, it should be understood that the following description is a broad disclosure for those skilled in the art, and its content is not intended to limit the present invention.

Please refer to FIG. 3 and FIG. 4 , which respectively show an exploded perspective view and a combined sectional view of the button structure 40 of the present invention. The button structure 40 of the present invention is implemented in a keyboard, and to simplify the drawing, the upper shell and the lower shell of the keyboard are not shown here.

The button structure 40 of the present invention comprises a base 23; a keycap 24, located on the base 23; a support member 22, located between the base 23 and the keycap 24, and the support member 22 is on opposite sides There is a first pivot portion 29 and a second pivot portion 30, the first pivot portion 29 is pivotally connected to the base 23, the second pivot portion 30 is pivotally connected to the keycap 24; a balance bar 21 , located between the base 23 and the keycap 24, the balance bar 21 has an end portion 25 and a third pivot portion 26, the end portion 25 is accommodated in the base 23, and the third pivot portion 26 is pivotally connected on the keycap 24 ; and an elastic element 33 disposed between the base 23 and the keycap 24 .

Wherein, the base 23 is provided with a first buckling portion 31 relative to the first pivotal portion 29 of the supporting member 22 , and the first buckling portion 31 is used for pivotally connecting the first pivoting portion 29 of the supporting member 22 . The keycap 24 is provided with a second buckling portion 32 relative to the second pivot portion 30 of the supporting member 22 , and the second buckling portion 32 is used for pivotally connecting the second pivoting portion 30 of the supporting member 22 . In addition, the elastic element 33 further includes an annular portion 38, and the support member 22 is provided with a recess 37 relative to the annular portion 38 of the elastic element 33, so that the recess 37 accommodates the annular portion 38, and this facilitates The volume of the support member 22 is miniaturized.

The base 23 defines a recess 27 opposite to the end 25 of the balance pole 21 , and the recess 27 is used for receiving the end 25 of the balance pole 21 . The keycap 24 is provided with a tenon 28 relative to the third pivot portion 26 of the balance bar 21 , and the tenon 28 is used for pivotally connecting the third pivot portion 26 of the balance bar 21 .

The base 23 defines a first hole 34 for accommodating the bottom of the elastic element 33 . The support member 22 defines a second hole 35 , and the elastic element 33 passes through the second hole 35 of the support member 22 . In addition, the keycap 24 is provided with a protrusion 36 opposite to the elastic element 33 , and the top surface of the elastic element 33 is in contact with the protrusion 36 .

Since the first pivotal portion 29 of the support member 22 is pivotally connected to the first buckle portion 31 of the base 23 , and the second pivotal portion 30 of the support member 22 is pivotally connected to the second buckle of the keycap 24 part 32, and the end part 25 of the balance bar 21 is received in the concave part 27 of the base 23, and the third pivot part 26 of the balance bar 21 is pivotally connected to the tenon 28 of the keycap 24, and the elastic element 33 Elastic force is provided, so when the user presses the button structure 40 of the present invention, the keycap 24 can move up and down relative to the base 23 (as shown by the double arrow symbol A in FIG. 4 ).

The advantage of the present invention is that: because the design or configuration of the support member and the balance bar becomes simplified, the key structure is easier to assemble, thus effectively reducing the manufacturing cost of the keyboard. And when the user presses the button structure of the present invention, there will be no noise problem caused by the collision of the support member, the balance bar and other parts.

Although the present invention has been disclosed with specific embodiments, it is not intended to limit the present invention. Any person skilled in the art can make replacements of equivalent components without departing from the concept and scope of the present invention, or replace them according to the present invention. The equivalent changes and modifications made in the scope of patent protection shall still fall within the scope of this patent.

Claims (9)

1. A key structure, characterized in that the key structure comprises: a base; A key cap is arranged on the base; A supporting piece is arranged between the base and the keycap, the supporting piece has a first pivotal portion and a second pivotal portion, the first pivotal portion is pivotally connected to the base, and the second pivotal portion The part is pivotally connected to the keycap; A balance bar, located between the base and the keycap, the balance bar has an end and a third pivot joint, the end is accommodated in the base, and the third pivot joint is pivotally connected to the keycap; an elastic element is arranged between the base and the keycap; Wherein, the keycap moves up and down relative to the base by the support member, the balance bar and the elastic element. 2 . The button structure according to claim 1 , wherein the base is provided with a first buckling portion relative to the first pivotal portion of the supporting member for pivotally connecting the first pivotal portion of the supporting member. 3 . 3. The button structure according to claim 1, wherein the keycap is provided with a second buckling portion relative to the second pivotal portion of the supporting member for pivotally connecting the second pivotal portion of the supporting member . 4 . The button structure as claimed in claim 1 , wherein a concave portion is formed on the base opposite to the end of the balance bar for receiving the end of the balance bar. 5 . 5 . The button structure according to claim 1 , wherein the keycap is provided with a tenon relative to the third pivotal portion of the balance bar, for pivotally connecting the third pivotal portion of the balance bar. 5 . 6. The button structure as claimed in claim 1, wherein the base is provided with a first hole for accommodating the elastic element. 7. The button structure as claimed in claim 1, wherein the supporting member is provided with a second hole, so that the elastic element passes through the second hole of the supporting member and is connected to the keycap. 8 . The key structure according to claim 7 , wherein the key cap is provided with a protrusion relative to the elastic element, so that the elastic element is in contact with the protrusion. 9. The button structure according to claim 1, wherein the elastic element further comprises an annular portion, and the supporting member is provided with a recess relative to the annular portion of the elastic element, so that the recess accommodates the annular portion .

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