阅读说明：本技术 键盘 (keyboard with a keyboard body ) 是由 凌郁婷 徐百平 郑祥文 于 2018-06-08 设计创作，主要内容包括：本发明提供一种键盘,包括具有滑动卡勾的按键帽、连接元件以及底板。连接元件包括第一框架以及第二框架,且第一框架的第一连接部伸入滑动卡勾内。第一连接部包括顶面以及接触斜面,顶面位于第一连接部的末端,接触斜面相邻于顶面。其中,顶面与接触斜面的交界线与第一框架的上表面垂直。通过接触斜面的结构,可减少第一连接部与滑动卡勾之间的接触面积,因此可降低第一连接部与滑动卡勾之间的组装干涉量。(The invention provides a keyboard, which comprises a key cap with a sliding hook, a connecting element and a bottom plate. The connecting element comprises a first frame and a second frame, and the first connecting part of the first frame extends into the sliding clamping hook. The first connecting portion includes a top surface and a contact slope, the top surface is located at the end of the first connecting portion, and the contact slope is adjacent to the top surface. Wherein, the boundary line between the top surface and the contact inclined plane is vertical to the upper surface of the first frame. Through the structure of the contact inclined plane, the contact area between the first connecting part and the sliding clamping hook can be reduced, so that the assembling interference between the first connecting part and the sliding clamping hook can be reduced.)

1. A keyboard, comprising:

A key cap exposed outside the keyboard, the key cap having a sliding hook;

a connecting element connected to the key cap, the connecting element comprising:

A first frame having a first connecting portion extending into the sliding hook; the first connecting part comprises a top surface and a contact inclined surface, the top surface is positioned at one tail end of the first connecting part, and the contact inclined surface is adjacent to the top surface; and

The second frame is connected with the first frame and can swing relative to the first frame; and

A bottom plate, which is arranged below the key cap, is connected with the connecting element and is used for bearing the connecting element and the key cap; wherein, an interface line of the top surface and the contact inclined plane is vertical to an upper surface of the first frame.

2. The keyboard of claim 1, wherein the first connecting portion is formed by extending a side wall of the first frame outward, the first connecting portion is perpendicular to the side wall of the first frame, and the top surface is parallel to the side wall of the first frame.

3. The keyboard of claim 1, wherein the sliding hook has a guiding slope on an outer surface of the sliding hook; when the sliding hook is in contact with the first connecting portion, the sliding hook abuts against the first connecting portion, and the contact inclined surface moves along the guide inclined surface of the sliding hook, so that the first connecting portion can enter the sliding hook.

4. The keyboard of claim 1, wherein the key cap further comprises a fixing hook located at one side of the key cap for being combined with a third connecting portion of the second frame; the sliding hook is positioned on the other side of the key cap.

5. The keyboard of claim 4, wherein when the sliding hook contacts the first connecting portion, the fixed hook contacts the third connecting portion, and the third connecting portion moves along an inner side of the fixed hook to be coupled to the fixed hook.

6. The keyboard of claim 1, further comprising:

A switch circuit board located under the key cap; and

An elastic element, located between the key cap and the switch circuit board, for being pushed by the key cap to trigger the switch circuit board, so that the switch circuit board outputs a key signal; when the elastic element is not pushed by the key cap any more, the elastic element provides an elastic force to the key cap, so that the key cap returns to the position before being pressed.

7. The keyboard of claim 6, wherein when the key cap is pressed, the second frame is pushed to rotate relative to the first frame, a third connecting portion of the second frame rotates in a fixing hook of the key cap, and the first connecting portion rotates and slides in the sliding hook, so that the key cap pushes against the elastic element.

8. The keyboard of claim 1, wherein the chassis comprises:

The first bottom plate clamping hook is positioned on one side of the bottom plate and is used for being connected with a second connecting part of the first frame; and

The second bottom plate clamping hook is positioned on the other side of the bottom plate and is used for being connected with a fourth connecting part of the second frame; when the key cap is pressed, the second connecting part rotates in the first base plate clamping hook, and the fourth connecting part rotates and slides in the second base plate clamping hook.

Technical Field

The present invention relates to an input device, and more particularly, to a keyboard having a plurality of keys.

Background

Common peripheral input devices for computers include mice, keyboards, trackballs, etc., wherein the keyboard can directly input characters and symbols to the computer, and therefore, the users and manufacturers of the input devices pay attention to the input devices. The subject of the invention is a keyboard.

The following describes a partial structure of a keyboard including scissors-type connecting elements. Please refer to fig. 1, which is a partial sectional side view of a conventional keyboard. The conventional keyboard 1 includes a plurality of key caps 11 (only one is shown), a plurality of scissor-type connecting elements 12 (only one is shown), a plurality of elastic rubber bodies 13 (only one is shown), a membrane switch circuit 14 and a bottom plate 15, wherein the bottom plate 15 is used for carrying the key caps 11, the scissor-type connecting elements 12, the elastic rubber bodies 13 and the membrane switch circuit 14. The scissors-type connecting element 12 is used to connect the bottom plate 15 and the key cap 11, the key cap 11 includes a sliding hook 111 and a fixing hook 112, and the bottom plate 15 includes a first bottom plate hook 151 and a second bottom plate hook 152.

The membrane switch circuit 14 has a plurality of key contacts (not shown). The key contact outputs a corresponding key signal when triggered. The elastic rubber body 13 is arranged on the membrane switch circuit 14, one elastic rubber body 13 corresponds to one key contact, and when the elastic rubber body 13 is pressed, the elastic rubber body 13 deforms and presses the corresponding key contact in the membrane switch circuit 14 to generate a key signal.

The scissors connecting element 12 is located between the bottom plate 15 and the key cap 11 and connects the two. Scissor linkage 12 includes a first frame 121 and a second frame 122. A first end of the first frame 121 is connected to the keycap 11, and a second end of the first frame 121 is connected to the bottom plate 15. The first frame 121 includes a first connection portion 1211 and a second connection portion 1212. The first frame 121 is connected to the sliding hook 111 of the key cap 11 through the first connection portion 1211, and is connected to the second bottom plate hook 152 of the bottom plate 15 through the second connection portion 1212. On the other hand, the second frame 122 is combined with the first frame 121 and can swing relative to the first frame 121, a first end of the second frame 122 is connected to the first bottom plate hook 151 of the bottom plate 15, and a second end of the second frame 122 is connected to the keycap 11. The second frame 122 includes a third connecting portion 1221 and a fourth connecting portion 1222. The second frame 122 is connected to the fixing hook 112 of the key cap 11 by the third connecting portion 1221 thereof, and is connected to the bottom plate 15 by the fourth connecting portion 1222.

The operation of the key cap 11 of the conventional keyboard 1 pressed by the user will be described. In fig. 1, when the user presses the key cap 11, the key cap 11 is forced to push the scissors-type connecting element 12 to move, so that the key cap 11 can move downward relative to the bottom plate 15 and press the corresponding elastic rubber 13. At this time, the elastic rubber 13 deforms and presses the membrane switch circuit 14 to trigger the key contact of the membrane switch circuit 14, so that the membrane switch circuit 14 outputs a corresponding key signal. When the user stops pressing the key cap 11, the key cap 11 is no longer stressed to stop pressing the elastic rubber 13, so that the elastic rubber 13 is restored according to the elasticity thereof, and at the same time, provides an upward elastic restoring force, so that the key cap 11 is pushed back to the position before being pressed.

Generally, the key cap 11 and the scissors-type connecting element 12 are assembled vertically, that is, the scissors-type connecting element 12 in the overlapped state (i.e. the state where the first frame 121 and the second frame 122 are parallel) is moved along the vertical direction, so that the first connecting portion 1211 passes through the sliding hook 111 and enters therein, and the third connecting portion 1221 enters the fixing hook 112. However, in the vertical assembly process of the key cap 11 and the scissors-type connecting element 12, since the sliding hook 111 is an open hook with an opening facing the side of the key cap 11, when the key cap 11 and the scissors-type connecting element 12 are assembled, the sliding hook 111 blocks the first connecting portion 1211 and is difficult to assemble the two. At this time, the first connection portion 1211 and the sliding hook 111 must be strongly pushed against each other, so that the first connection portion 1211 enters into the sliding hook 111 for being combined. In the process of pushing against the first connection portion 1211 and the sliding hook 111, the first connection portion 1211 and the sliding hook 111 are worn and damaged, and the damaged condition is serious, which may cause a bad touch feeling of the touch button cap 11.

In order to solve the problem that the key cap and the scissors-type connecting element are difficult to assemble, the prior art has a slope facing the key cap (i.e., facing upward) on the first connecting portion to reduce the assembling interference between the sliding hook and the first connecting portion. Although the inclined surface is provided to facilitate the assembly of the key cap and the scissor-type connecting element, the improvement effect is limited. In fact, the assembled sliding hook and the first connecting portion are still damaged by abrasion, and the damage is still serious to cause poor touch feeling of the key cap.

Therefore, a keyboard which is easy to assemble and can improve the touch feeling of the key cap is required.

Disclosure of Invention

The invention aims to provide a keyboard which is convenient to assemble and can improve the touch and pressing hand feeling of a key cap.

In a preferred embodiment, the present invention provides a keyboard comprising a key cap, a connecting element and a bottom plate, wherein the key cap is exposed from the keyboard and has a sliding hook. The connecting element is connected to the key cap and comprises a first frame and a second frame. The first frame is provided with a first connecting part which extends into the sliding clamping hook; the first connecting portion includes a top surface and a contact inclined surface, the top surface is located at a tail end of the first connecting portion, and the contact inclined surface is adjacent to the top surface. The second frame is connected to the first frame and can swing relative to the first frame. The bottom plate is arranged below the key cap, connected to the connecting element and used for bearing the connecting element and the key cap; wherein, an interface line of the top surface and the contact inclined plane is vertical to an upper surface of the first frame.

In a preferred embodiment, the first connecting portion is formed by extending a side wall of the first frame outward, the first connecting portion is perpendicular to the side wall of the first frame, and the top surface is parallel to the side wall of the first frame.

In a preferred embodiment, the sliding hook has a guiding inclined plane, which is located on an outer surface of the sliding hook; when the sliding hook is in contact with the first connecting portion, the sliding hook abuts against the first connecting portion, and the contact inclined surface moves along the guide inclined surface of the sliding hook, so that the first connecting portion can enter the sliding hook.

In summary, in the connecting element of the keyboard of the present invention, the first connecting portion of the first frame is provided with a contact inclined plane, the contact inclined plane is adjacent to the top surface, and an intersection line between the top surface and the contact inclined plane is perpendicular to the upper surface of the first frame. In other words, the contact slope of the first connection portion is toward the sidewall of the first frame. On the other hand, the sliding hook of the key cap is also provided with a guide inclined plane corresponding to the contact inclined plane. Through the structure of the contact inclined plane and the guide inclined plane, the contact area between the first connecting part and the sliding clamping hook can be reduced, and therefore the assembling interference amount between the first connecting part and the sliding clamping hook can be reduced. Therefore, the keyboard can improve the damage condition of the first connecting part caused by assembly so as to provide good touch and press hand feeling of the key cap.

drawings

FIG. 1 is a schematic side view of a keyboard.

FIG. 2 is an exploded view of a keyboard according to a preferred embodiment of the present invention.

Fig. 3 is an exploded view of the key cap and the connecting element of the keyboard from another perspective in a preferred embodiment of the invention.

fig. 4 is a partial structural diagram of the key cap and the connecting element of the keyboard according to the present invention, which are assembled in a preferred embodiment.

FIG. 5 is a bottom view of a key cap and a connecting element of a keyboard according to a preferred embodiment of the present invention.

Fig. 6 is a structural diagram of the keyboard according to the present invention, wherein the key caps and the connecting elements are assembled in a preferred embodiment.

FIG. 7 is a partial sectional view of the keyboard according to the preferred embodiment of the invention.

1. 2 keyboard

11. 21 push-button cap

12-scissors type connecting element

13 elastic rubber body

14 thin film switch circuit

15. 25 bottom plate

22 connecting element

23 elastic element

24 switch circuit board

111. 211 sliding hook

112. 212 fixed hook

121. 221 first frame

122. 222 second frame

151. 251 first base plate hook

152. 252 second base plate hook

1211. 2211 first connecting part

1212. 2212 second connecting part

1221. 2221 third connecting part

1222. 2222 fourth connecting part

2111 guide ramp

2121 fixing the inner side of the hook

2213 side wall of first frame

2214 Upper surface of the first frame

2211A Top

2211B contact ramp

L boundary line between top surface and contact inclined plane

Detailed Description

in view of the problems caused by the prior art, the present invention provides a keyboard capable of solving the problems of the prior art. First, a structure of the keyboard of the present invention is described, please refer to fig. 2 and fig. 3, in which fig. 2 is a partially exploded view of the keyboard in a preferred embodiment of the present invention, and fig. 3 is an exploded view of a key cap and a connecting element of the keyboard in another view of the preferred embodiment of the present invention. The keyboard 2 of the present invention includes a plurality of key caps 21 (only one is shown), a connecting member 22 (only one is shown), an elastic member 23 (only one is shown), a switch circuit board 24, and a base plate 25. The key cap 21 is exposed outside the keyboard 2, and the key cap 21 includes a sliding hook 211 and a fixing hook 212, the sliding hook 211 and the fixing hook 212 are both disposed on the inner surface of the key cap 21, the sliding hook 211 is located on one side of the key cap 21, and the fixing hook 212 is located on the other side of the key cap 21. In the preferred embodiment, the sliding hook 211 and the fixing hook 212 are made of plastic material and are integrally formed with the key cap 21.

the connecting element 22 is connected to the keycap 21, and the connecting element 22 includes a first frame 221 and a second frame 222, the second frame 222 is connected to the first frame 221, and the second frame 222 can swing relative to the first frame 221. The bottom plate 25 is disposed below the key cap 21 and connected to the connecting element 22, and can carry a plurality of keys 21 and a plurality of connecting elements 22 thereon. The base plate 25 includes a plurality of first base plate hooks 251 and a plurality of second base plate hooks 252, the first base plate hooks 251 are located on one side of the base plate 25, and the second base plate hooks 252 are located on the other side of the base plate 25.

The switch circuit board 24 is located below the plurality of key caps 21, and functions to be triggered by the elastic element 23 to output a corresponding key signal. The elastic element 23 is located between the corresponding key cap 21 and the switch circuit board 24, and can be pushed by the key cap 21 to abut against the switch circuit board 24, so as to trigger the switch circuit board 24. In the preferred embodiment, the switch circuit board 24 is a thin film switch circuit, the elastic element 23 is an elastic rubber body, and the bottom plate 25 is made of a metal material.

The detailed structure of the connection member 22 will be explained next. Referring to fig. 2 and fig. 3 again, the first frame 221 includes a first connection portion 2211 and a second connection portion 2212, and the first connection portion 2211 extends into the sliding hook 211, and the second connection portion 2212 extends into the first bottom board hook 251. The first connecting portion 2211 is formed by extending the sidewall 2213 of the first frame 221, and the first connecting portion 2211 is perpendicular to the sidewall 2213 of the first frame 221. On the other hand, the second frame 222 includes a third connecting portion 2221 and a fourth connecting portion 2222, the third connecting portion 2221 extends into the fixing hook 212, and the fourth connecting portion 2222 extends into the second base plate hook 252.

In order to solve the problems of the prior art, the following design is adopted in the first frame 221: first connection portion 2211 includes a top surface 2211A and a contact ramp 2211B, where the top surface 2211A is located at an end of the first connection portion 2211 and the contact ramp 2211B is adjacent to the top surface 2211A. The top surface 2211A is parallel to the sidewall 2213 of the first frame 221, and the boundary line L between the top surface 2211A and the contact slope 2211B is perpendicular to the top surface 2214 of the first frame 221, i.e., the contact slope 2211B faces the sidewall 2213 of the first frame 221. On the other hand, the slide hook 211 has a guide slope 2111 corresponding to the contact slope 2211B, and the guide slope 2111 is located on the outer surface of the slide hook 211.

Next, the assembling operation of the key cap 21 and the connecting element 22 of the keyboard 2 of the present invention will be described. Referring to fig. 4, fig. 5 and fig. 6, fig. 4 is a partial structural diagram of the keyboard according to the present invention, wherein the keyboard cap and the connecting element are assembled in a preferred embodiment, fig. 5 is a partial structural diagram of the keyboard according to the present invention, wherein the keyboard cap and the connecting element are assembled in a preferred embodiment, and fig. 6 is a structural diagram of the keyboard according to the present invention, wherein the keyboard cap and the connecting element are assembled in a preferred embodiment. The key cap 21 and the connecting element 22 of the keyboard 2 of the present invention are assembled vertically, first, the connecting element 22 is changed to an overlapped state, i.e. the first frame 221 and the second frame 222 are parallel, and the connecting element 22 is parallel to the key cap 21. Then, the connecting member 22 is moved in the vertical direction while keeping the two parallel to each other. Fig. 4 shows the situation where the connecting element 22 is close to the keycap 22: the first connection portion 2211 of the first frame 221 is close to the slide hook 211 of the keycap 21.

When the first connection portion 2211 contacts the sliding hook 211, the sliding hook 211 abuts against the first connection portion 2211, the first connection portion 2211 is slightly deformed according to the elasticity of the plastic material, and the contact inclined surface 2211B of the first connection portion 2211 moves along the guide inclined surface 2111 of the sliding hook 211, which is helpful for the first connection portion 2211 to enter the sliding hook 211. On the other hand, while the first connection portion 2211 is in contact with the sliding hook 211, the fixed hook 212 is in contact with the third connection portion 2221, and the third connection portion 2221 moves along the inner side 2121 of the fixed hook 212 to be combined with the fixed hook 212, as shown in fig. 6.

In particular, according to the structure of the contact slope 2211B of the first connection portion 2211, the contact area between the first connection portion 2211 and the slide hook 211 in the keyboard 2 of the present invention is smaller than that of the first connection portion not provided with the contact slope, and the contact area between the two is only the dotted area in fig. 5. Therefore, the assembly interference between the first connection portion 2211 and the sliding hook 211 can be reduced, and the damage of the first connection portion 2211 can be greatly reduced.

The operation of the key caps 21 of the keyboard 2 according to the present invention will be described. Please refer to fig. 7, which is a partial sectional view of a keyboard according to a preferred embodiment of the invention. When the user presses the key cap 21, the key cap 21 moves downward relative to the bottom plate 25, so that the first frame 221 and the second frame 222 of the connecting element 22 swing to change from the open state to the folded state. The third connecting portion 2221 of the second frame 222 rotates in the fixing hook 212, and the first connecting portion 2211 of the first frame 221 rotates and slides in the sliding hook 211, so that the key cap 21 moves downward to push the elastic element 23.

The key cap 21 moving downward pushes against the elastic element 23, so that the elastic element 23 is pushed against to deform and trigger the switch circuit board 24, so that the switch circuit board 24 generates a key signal corresponding to the key cap 21. When the user no longer presses the key 21, the key cap 21 moves upward relative to the bottom plate 25 according to the elastic force generated by the elastic element 23 recovering from the deformed state, at this time, the first frame 221 and the second frame 222 recover from the overlapped state to the opened state, and the key cap 21 is pushed to recover to the position before being pressed.

According to the above, in the connecting element of the keyboard of the present invention, the first connecting portion of the first frame is provided with the contact inclined surface, the contact inclined surface is adjacent to the top surface, and the boundary line between the top surface and the contact inclined surface is perpendicular to the upper surface of the first frame. In other words, the contact slope of the first connection part faces the sidewall of the first frame. On the other hand, the sliding hook of the key cap is also provided with a guide inclined plane corresponding to the contact inclined plane. Through the structure of the contact inclined plane and the guide inclined plane, the contact area between the first connecting part and the sliding clamping hook can be reduced, and therefore the assembling interference amount between the first connecting part and the sliding clamping hook can be reduced. Therefore, the keyboard can improve the damage condition of the first connecting part caused by assembly so as to provide good touch and press hand feeling of the key cap.

The above-mentioned embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and therefore, all equivalent changes and modifications that do not depart from the spirit of the present invention are intended to be included within the scope of the present invention.