CN214378148U - Key structure - Google Patents
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- CN214378148U CN214378148U CN202120551024.1U CN202120551024U CN214378148U CN 214378148 U CN214378148 U CN 214378148U CN 202120551024 U CN202120551024 U CN 202120551024U CN 214378148 U CN214378148 U CN 214378148U
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- pivot
- bottom plate
- keycap
- key structure
- supporting portion
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Abstract
A key structure comprises a support, a circuit film and a keycap. The bracket comprises a bottom plate and a first pivoting part protruding out of the top surface of the bottom plate, wherein the bottom plate and the first pivoting part are made of the same material and are integrated. The circuit film is arranged on the bottom plate of the bracket. The keycap is arranged above the support and the circuit film and comprises a top plate and a second pivoting part protruding out of the bottom surface of the top plate. The second pivot portion is pivotally disposed on the first pivot portion. The top plate is provided with a first area and a second area, and the second pivot joint part is positioned in the first area. When the second area of the keycap is pressed to the support, the distance between the first area of the keycap and the base plate is kept fixed, and the second pivoting part of the keycap rotates relative to the first pivoting part of the support, so that the keycap is inclined.
Description
Technical Field
The present invention relates to a key structure, and more particularly, to a key structure with fewer parts and easy assembly.
Background
Currently, in a key structure applied to a touch pad or the like of a notebook computer, a key cap is tilted when being clicked. Specifically, the keycap is disposed on the metal support, and the plastic part is disposed between the metal support and the keycap. One side of the keycap is a pivot end which is pivoted on the pivot of the plastic piece and can only rotate without moving downwards. The other side of the keycap can be pressed down.
For such key structures, how to save the number of parts and the assembly process is the research direction in the field.
SUMMERY OF THE UTILITY MODEL
The utility model provides a key structure, it has less part and easier equipment.
The utility model discloses a key structure, including a support, a circuit film and a key cap. The bracket comprises a bottom plate and a first pivoting part protruding out of the top surface of the bottom plate, wherein the bottom plate and the first pivoting part are made of the same material and are integrated. The circuit film is arranged on the bottom plate of the bracket. The keycap is arranged above the support and the circuit film and comprises a top plate and a second pivoting part protruding out of the bottom surface of the top plate. The second pivot portion is pivotally disposed on the first pivot portion. The top plate is provided with a first area and a second area, and the second pivot joint part is positioned in the first area. When the second area of the keycap is pressed to the support, the distance between the first area of the keycap and the base plate is kept fixed, and the second pivoting part of the keycap rotates relative to the first pivoting part of the support, so that the keycap is inclined.
In an embodiment of the present invention, the above-mentioned support further includes a supporting portion standing on the bottom plate, the supporting portion has a first end edge and a second end edge opposite to each other, the first end edge of the supporting portion is connected to the bottom plate with bending, and the first pivot portion is connected to the second end edge of the supporting portion with bending.
In an embodiment of the present invention, the first pivot portion is an arc-shaped plate, and the length of the second end edge of the supporting portion is greater than or equal to 1.5 times the arc length of the first pivot portion.
In an embodiment of the present invention, the first pivot portion is connected to a center of the second end edge of the supporting portion.
In an embodiment of the present invention, the first pivot portion is staggered from a center of the second edge of the supporting portion.
In an embodiment of the invention, the bottom plate includes a first hole, and the first end edge of the supporting portion extends from the bottom plate at an edge of the first hole.
In an embodiment of the invention, the above-mentioned support further includes a limiting portion extending from the bottom plate and passing through the circuit film, and the key cap includes a hook corresponding to the limiting portion.
In an embodiment of the invention, the bottom plate includes a second hole, and the limiting portion extends from the bottom plate at an edge of the second hole.
In an embodiment of the present invention, the above-mentioned bracket further includes a supporting portion standing on the bottom plate, the first pivot portion is located at a position of the supporting portion away from the limiting portion, and the bottom plate, the supporting portion, the first pivot portion and the limiting portion are made of the same material and are integrated.
In an embodiment of the present invention, the elastic body is disposed between the support and the key cap.
Based on the foregoing, the utility model discloses a button structure that can incline when the key cap is pressed, this button structure's support includes the protrusion in the first pin joint portion of the top surface of bottom plate, and the bottom plate is the same and as an organic whole with the material of first pin joint portion. The second pivot joint part of the keycap is pivoted on the first pivot joint part of the bracket. Compared with the conventional structure, another member (such as a plastic part) is required to be arranged between the support and the keycap to form a pivot for the hinge connection of the keycap, the keycap of the key structure of the utility model is directly pivoted on the support without additionally arranging the member with the pivot, thereby effectively saving the cost, the assembly process and the time.
Drawings
Fig. 1 is a schematic diagram of a key structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of a bottom surface of a keycap of the key structure of FIG. 1;
FIG. 3 is a schematic view of a support and a circuit film of the key structure of FIG. 1;
fig. 4 is a partial schematic view of a support and a circuit film of a key structure according to another embodiment of the present invention.
[ notation ] to show
L1, L1', L2 length
L3, L4, L5, L6 distance
100 key structure
110 support
111: base plate
112, first broken hole
113 second hole
114. 114a support part
115 first end edge
116 second end edge
117 first pivoting part
118 a limiting part
120: circuit film
130 key cap
132 second pivot joint part
134 is a hook
135 part of top plate
136 first region
137 the second zone
140 elastomer
Detailed Description
Fig. 1 is a schematic diagram of a key structure according to an embodiment of the present invention. It is noted that in fig. 1, the key caps and the elastic bodies are shown in dotted lines for clarity of showing details of the support of the key structure.
Referring to fig. 1, the key structure 100 of the present embodiment can be applied to a key of a touch pad area of a notebook computer, for example, which can be pressed by a user. Of course, the key structure 100 of the present embodiment can also be applied to other products, and the applied form is not limited thereto.
The key structure 100 of the present embodiment includes a support 110, a circuit film 120, a key cap 130 and an elastic body 140. The bracket 110 includes a bottom plate 111 and a pair of first pivot portions 117 protruding from the top surface of the bottom plate 111. The circuit film 120 is disposed on the bottom plate 111 of the bracket 110, and a trigger switch (not shown) is disposed on the circuit film 120. The first pivot portion 117 extends through the circuit film 120.
The key cap 130 is disposed above the support 110 and the circuit film 120. FIG. 2 is a schematic view of a bottom surface of a keycap of the key structure of FIG. 1. Referring to fig. 1 and fig. 2, the key cap 130 includes a top plate 135 and a pair of second pivot portions 132 protruding from a bottom surface of the top plate 135, and the second pivot portions 132 are pivotally disposed on the first pivot portions 117. The top plate 135 has a first section 136 and a second section 137, and the second pivot portion 132 is located in the first section 136. That is, the key cap 130 is directly pivoted to the bracket 110. In the embodiment, the first pivoting portion 117 is used as a pivot and the second pivoting portion 132 is used as a pivot hole, but in other embodiments, the first pivoting portion 117 may be a pivot hole and the second pivoting portion 132 may be a pivot, and the types of the first pivoting portion 117 and the second pivoting portion 132 are not limited thereto.
The elastic body 140 is disposed between the base plate 111 and the key cap 130. The elastic body 140 is, for example, a rubber dome (rubber dome), but the material and shape of the elastic body 140 are not limited thereto.
When the second region 137 of the key cap 130 (i.e. the portion away from the second pivot portion 132, for example, the lower side of fig. 1) is pressed toward the frame 110, the distance between the first region 136 of the key cap 130 (i.e. the portion at the second pivot portion 132, for example, the upper side of fig. 1) and the bottom plate 111 is kept constant, and the second pivot portion 132 of the key cap 130 rotates relative to the first pivot portion 117 of the frame 110, so that the key cap 130 tilts. At this time, the trigger switch of the circuit film 120 can be triggered, and the elastic body 140 accumulates an elastic potential energy.
When the force applied to the key cap 130 is released, the elastic body 140 releases the elastic potential energy, and the key cap 130 is lifted up at a position (for example, the lower side of fig. 1) away from the second pivot portion 132, so that the key cap 130 is returned.
Compared with the conventional structure that another member (such as a plastic member) is disposed between the frame and the key cap to form a pivot for pivoting the key cap, the key cap 130 of the key structure 100 of the present embodiment is directly pivoted to the frame 110, and no additional member having a pivot is required, so that the cost, the assembly process and the time can be effectively saved.
In addition, in the embodiment, the bracket 110 further optionally includes a limiting portion 118, and the limiting portion 118 extends and protrudes from the top surface of the base plate 111 and passes through the circuit film 120. The key cap 130 includes a hook 134 corresponding to the position-limiting portion 118, and the hook 134 is located on the bottom surface of the second region 137 of the top plate 135 of the key cap 130. The position-limiting portion 118 located in the second region 137 is located at one side of the first pivot portion 117 located in the first region 136. The position-limiting portion 118 of the support 110 is used to limit the end point of the upward moving path of the second region 137 of the key cap 130 when the elastic body 140 lifts the second region 137 of the key cap 130. That is, when the elastic body 140 lifts the second region 137 of the key cap 130, the hook 134 of the key cap 130 is finally blocked by the position-limiting portion 118 of the support 110, and the second region 137 of the key cap 130 will not move upward relative to the support 110.
Referring to fig. 3, fig. 3 is a schematic view of a circuit film and a support of the key structure of fig. 1. Specifically, in the present embodiment, the bracket 110 further includes a supporting portion 114 standing on the bottom plate 111, and the supporting portion 114 is a wall. The supporting portion 114 has a first end edge 115 (e.g., a lower end edge) and a second end edge 116 (e.g., an upper end edge) opposite to each other. The first end 115 of the supporting portion 114 is connected to the bottom plate 111 in a bending manner, and the first pivot portion 117 is connected to the second end 116 of the supporting portion 114 in a bending manner.
In the present embodiment, the bottom plate 111, the supporting portion 114 and the first pivot portion 117 are made of the same material and are integrated. The material of the bracket 110 is, for example, metal, but not limited thereto. Specifically, during manufacturing, a U-shaped notch (not shown) is formed on the bottom plate 111, and then the portion of the bottom plate 111 located in the U-shaped notch is bent upward to form the supporting portion 114, and a block of the bent portion to be formed with the first pivot portion 117 is cut to a proper size and then bent, so that the first pivot portion 117 is an arc-shaped plate.
Therefore, as shown in fig. 3, in the present embodiment, the bottom plate 111 includes a first hole 112, and the first end edge 115 of the supporting portion 114 extends from the bottom plate 111 at the edge of the first hole 112. Since the supporting portion 114 and the first pivot portion 117 are formed by the portions originally existing in the first hole 112, the size of the supporting portion 114 and the first pivot portion 117 is smaller than or equal to the size of the first hole 112.
Similarly, the position-limiting portion 118 is also made of the same material as the bottom plate 111 and is integrated with the bottom plate 111, the bottom plate 111 includes a second hole 113, and the position-limiting portion 118 extends from the bottom plate 111 at the edge of the second hole 113 and is formed by bending a portion of the bottom plate 111 upward.
It should be noted that, since the second pivot portion 132 of the key cap 130 only pivots along the top side of the first pivot portion 117 of the bracket 110, in the embodiment, the first pivot portion 117 is an arc-shaped plate protruding upwards, but the form of the first pivot portion 117 is not limited thereto. In other embodiments, the first pivot portion 117 may have a cylindrical, semi-cylindrical, or cylindrical shape.
In the present embodiment, the length L1 of the second end edge 116 of the supporting portion 114 is greater than or equal to 1.5 times, for example, 2 times, the arc length L2 of the first pivot portion 117. Such a design can provide the supporting portion 114 with better structural strength, so that the first pivoting portion 117 has better stability.
In addition, in the embodiment, the first pivot portion 117 is connected to the center of the second end edge 116 of the supporting portion 114. The distances L3 and L4 between the first pivot portion 117 and the two ends of the second end edge 116 are the same, but the relative position of the first pivot portion 117 with respect to the second end edge 116 of the supporting portion 114 is not limited thereto.
Fig. 4 is a schematic view of a support and a circuit film of a key structure according to another embodiment of the present invention. Referring to fig. 4, in the present embodiment, the length L1' of the second end edge 116 of the supporting portion 114a is increased, and if the position of the first pivot portion 117 is not changed, the first pivot portion 117 is offset from the center of the second end edge 116 of the supporting portion 114 a. Specifically, the first pivot portion 117 is located at a position of the supporting portion 114a away from the limiting portion 118, such that a distance L5 between the first pivot portion 117 and one end of the second end edge 116 is greater than a distance L6 between the first pivot portion 117 and the other end of the second end edge 116. Such a design can make the supporting portion 114a have better structural strength, so that the first pivoting portion 117 has better stability.
To sum up, the utility model discloses a button structure that can incline when the key cap is pressed is the button structure of key cap, and the support of this button structure includes protrusion in the first pin joint portion of bottom plate, and the bottom plate is the same and as an organic whole with the material of first pin joint portion. The second pivot joint part of the keycap is pivoted on the first pivot joint part of the bracket. Compared with the conventional structure, another member (such as a plastic part) is required to be arranged between the support and the keycap to form a pivot for the hinge connection of the keycap, the keycap of the key structure of the utility model is directly pivoted on the support without additionally arranging the member with the pivot, thereby effectively saving the cost, the assembly process and the time.
Claims (10)
1. A key structure, comprising:
the bracket comprises a bottom plate and a first pivoting part protruding out of the top surface of the bottom plate, wherein the bottom plate and the first pivoting part are made of the same material and are integrated;
a circuit film arranged on the bottom plate of the bracket; and
a keycap disposed above the support and the circuit film and including a top plate and a second pivot part protruding from the bottom surface of the top plate, the second pivot part being pivoted to the first pivot part, wherein the top plate has a first region and a second region, the second pivot part is located in the first region
When the second area of the keycap is pressed to the support, the distance between the first area of the keycap and the base plate is kept fixed, and the second pivoting part of the keycap rotates relative to the first pivoting part of the support, so that the keycap is inclined.
2. The key structure of claim 1, wherein the frame further comprises a supporting portion standing on the bottom plate, the supporting portion having a first end edge and a second end edge opposite to each other, the first end edge of the supporting portion being connected to the bottom plate in a bent manner, and the first pivot portion being connected to the second end edge of the supporting portion in a bent manner.
3. The key structure of claim 2, wherein the first pivot portion is an arc-shaped plate, and the length of the second end edge of the supporting portion is greater than or equal to 1.5 times the arc length of the first pivot portion.
4. The key structure of claim 2, wherein the first pivot portion is connected to a center of the second end edge of the supporting portion.
5. The key structure of claim 2, wherein the first pivot portion is offset from a center of the second edge of the supporting portion.
6. The key structure of claim 2, wherein the bottom plate includes a first hole, and the first end of the supporting portion extends from the bottom plate at an edge of the first hole.
7. The key structure of claim 1, wherein the frame further comprises a limiting portion extending from the base plate and through the circuit film, and the key cap comprises a hook corresponding to the limiting portion.
8. The key structure of claim 7, wherein the base plate includes a second hole, and the limiting portion extends from the base plate at an edge of the second hole.
9. The key structure of claim 7, wherein the frame further comprises a supporting portion standing on the bottom plate, the first pivot portion is located at a position of the supporting portion away from the limiting portion, and the bottom plate, the supporting portion, the first pivot portion and the limiting portion are made of the same material and are integrated.
10. The key structure of claim 1, further comprising an elastomer disposed between the frame and the keycap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120551024.1U CN214378148U (en) | 2021-03-17 | 2021-03-17 | Key structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120551024.1U CN214378148U (en) | 2021-03-17 | 2021-03-17 | Key structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214378148U true CN214378148U (en) | 2021-10-08 |
Family
ID=77972128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120551024.1U Active CN214378148U (en) | 2021-03-17 | 2021-03-17 | Key structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214378148U (en) |
-
2021
- 2021-03-17 CN CN202120551024.1U patent/CN214378148U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |