CN2561076Y - Key cap with multi-layer structure - Google Patents
Key cap with multi-layer structure Download PDFInfo
- Publication number
- CN2561076Y CN2561076Y CN 02236935 CN02236935U CN2561076Y CN 2561076 Y CN2561076 Y CN 2561076Y CN 02236935 CN02236935 CN 02236935 CN 02236935 U CN02236935 U CN 02236935U CN 2561076 Y CN2561076 Y CN 2561076Y
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- keycap
- layer segment
- thickness
- utility
- strength
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- Expired - Lifetime
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Abstract
The utility model relates to a key cap with multiple layer structure and used for a key with a plunger device, which comprises a first part and a second part, wherein the first part is formed with first material including a bearing part used for connecting the plunger device. The second part is formed with second material different from the first material, the second part is covered on the first part, and a contact surface is provided for bearing the external force. The material strength of the first material is larger than the material strength of the second material is utilized to lead the thickness of the second part to be smaller than the thickness of the first part. Because the utility model is equipped with the key cap with inner layer and outer layer structure, the stroke of the key can be increased to lead an element to be reasonably arranged, and the operation is convenient and reliable.
Description
Technical field
The utility model relates to a kind of keycap that is used for the mechanical type key switch, particularly relates to a kind of sandwich construction keycap that is used for the button of keyboard.
Background technology
The button that generally is used for keyboard can be divided into mechanical type key switch and membrane pushbutton switch.For adapting to light, thin, short, the little development trend of electronic installation, the mechanical type key switch needs special design, takes into account the sensitivity of key switch and the arrangement of element.
Fig. 1 is a schematic diagram, in order to the keycap of explanation conventional springs formula key switch.Can hold a spring assembly 113 moving up and down between one keycap 110 of traditional spring key switch and the pedestal 115 in order to response keycap 110.For the purpose of illustrating, simplify the structure of spring assembly 113 among Fig. 1.In fact, spring assembly 113 comprises relevant element and structure.In operation, utilize spring assembly 113 reception one external force and produce the purpose that deformation reaches key switch.
Generally speaking, keycap 110 comprises the part that connects with retainer spring device 113, and the clasp 116 that for example some guiding cylinders 117, plunger 114 are terminal with it etc. are with a stressed contact-making surface 112.Because consider the factor that keycap 110 is convenient to make, so the material of keycap 110 is general plastic macromolecular material, for example utilizes the plastic material of injection mo(u)lding.Secondly, stressed contact-making surface 112 must have enough keycap thickness t 1 to bear external force.
Similarly, Fig. 2 is a schematic diagram, in order to the keycap of explanation conventional scissors formula key switch.Can hold a scissors apparatus 123 moving up and down between one keycap 120 of conventional scissors formula key switch and the pedestal 115 in order to response keycap 120.For the purpose of illustrating, also simplify the structure of pedestal 115 and scissors apparatus 123 among Fig. 2.In fact, pedestal 115 can comprise be connected with scissors apparatus 123 accept part 125, comprise relevant element and structure on the scissors apparatus 123, actuation element for example, keycap 120 also comprise be connected with scissors apparatus 123 accept part 124.In operation, utilize scissors apparatus 123 to receive external force and produce the purpose that deformation or displacement reach key switch.
Similarly, the material of keycap 120 is general plastic macromolecular material, for example utilizes the plastic material of injection mo(u)lding.Secondly, stressed contact-making surface 122 must have enough keycap thickness t 1 to bear external force.
Yet two kinds of above-mentioned keycaps are all because of the strength factor of its material, make keycap thickness t 1 too to dwindle, therefore the thickness of keycap has reduced the operation and the accommodation space of spring assembly or scissors apparatus, make the stroke of spring assembly or scissors apparatus shorten, be unfavorable for the operation and the element arrangement of button.
The utility model content
The purpose of this utility model is to provide a kind of keycap of sandwich construction, and this keycap is used for the mechanical type key switch, and it can take into account mechanical strength required when operating simultaneously, with Key element, and for example arrangement of plunger assembly.
Another purpose of the present utility model is to provide the keycap with metal outer, and this keycap can be used on the button of desktop computer or portable computer, and the thickness of its metal outer has increased the stroke of Key element less than the keycap thickness of conventional plastic material.
Another purpose of the present utility model is to provide has keycap outer and endothecium structure, and it utilizes the metal outer structure to provide and is subjected to force intensity, utilizes the inner plastic structure to form the structure that connects Key element.
The purpose of this utility model is to realize like this, a kind of keycap promptly is provided, this keycap is used to have a button of supporting construction, and this keycap comprises: layer segment forms with one first material in one, and first surface of layer segment has at least one part of accepting in order to connect this supporting construction in this; Reach an outer layer segment and form with one second material, this outer layer segment cover ground is fixed in a second surface of layer segment in this, and wherein the strength of materials of this first material is less than the strength of materials of this second material.
The utility model also provides a kind of keycap with sandwich construction, this keycap with sandwich construction is used for a mechanical type key switch, this keycap with sandwich construction comprises: a first forms with one first material, and this first comprises that at least one part of accepting is in order to connect a plunger assembly of this mechanical type key switch; Reach a second portion and form with one second material that is different from this first material, this this first of second portion cover, this second portion has a contact-making surface in order to bear an external force, and wherein the strength of materials of this second material is greater than the strength of materials of this first material.
Advantage of the present utility model is that it is provided with the keycap of inside and outside layer structure, and the stroke of increase button makes its arranging elements rationally, and convenient and reliable operation.
Description of drawings
Fig. 1 is a schematic diagram, in order to the keycap of explanation conventional springs formula key switch;
Fig. 2 is a schematic diagram, in order to the keycap of explanation conventional scissors formula key switch;
Fig. 3 is a generalized section, in order to explanation the utility model one embodiment, is used for the keycap of the sandwich construction of spring key switch;
Fig. 4 is a generalized section, in order to another embodiment of explanation the utility model, is used for the keycap of the sandwich construction of shear-type key switch;
Fig. 5 A and Fig. 5 B are in the keycap of sandwich construction of Fig. 3 or Fig. 4, the following view plane schematic diagram of first.
Embodiment
When the utility model described embodiment of the present utility model in detail with two-dimensional diagram, the person skilled in the art should understand, and the true form of this keycap comprises the stereochemical structure of a three-dimensional, and these two-dimensional diagram are not in order to limit to scope of the present utility model.Moreover for describing the utility model in detail, the schematic diagram of keycap is also disobeyed actual size and is amplified, and the magnification ratio of each several part is also inequality, and these up-sizings are not to be used for limiting to the utility model yet.Moreover, for being described, keycap of the present utility model can be applicable to various mechanical type key switches, and therefore diagram of the present utility model does not comprise other element or structure of button, but in the practical operation, comprises other elements and the structure of the whole button of start.
With reference to Fig. 3, it is a generalized section, and it is used for the keycap of the sandwich construction of spring key switch in order to explanation the utility model one embodiment.Can hold a plunger assembly (not showing on the figure) moving up and down between one keycap 10 and the pedestal (not showing on the figure) in order to response keycap 10.Be set to prior art between keycap and the pedestal, do not repeat them here.
Moreover, the second portion 18 of present embodiment can be considered the layer structure of keycap 10, profile with general keycap, wherein a side and first 19 are connected and fixed, and opposite side comprises that a contact-making surface 12 provides the contact-making surface that applies an external force in the moving up and down of keycap 10.Be noted that present embodiment with the contact-making surface of contact-making surface 12 as external force, but in actual design, contact-making surface 12 can have a curved surfaces or the smooth fully plane contact-making surface as external force.
Moreover because contact-making surface 12 must have enough intensity and bear external force as the contact-making surface of external force, therefore one of characteristic of the present utility model is with the material of metal material as second portion 18.Wherein, because the strength of materials of metal material is higher than the strength of materials of macromolecular material, so in the present embodiment, the thickness t 2 of second portion 18 on the direction of vertical contact-making surface 12 is less than the thickness t 3 of first 19.Thus, the thickness summation of contact-making surface 12 is (t2+t3), less than the keycap thickness t 1 that forms with macromolecular material among Fig. 1, fully.Therefore one of characteristic of the present utility model is, utilize the keycap 10 of sandwich construction, not only can provide preferable mechanical strength, can also make the thickness of contact-making surface 12 reduce, thereby increase the stroke of keycap 10 below plunger assemblies, for example the deflection of spring plunger assembly.Be stressed that, in actual design, first 19 is in the thickness t 3 of contact-making surface 12 belows, the minimizing of can in feasible making, trying one's best, even there is not thickness t 3 fully, and the upper edge portion of plunger assembly 14 is only arranged, to reach the accommodation space that increases plunger assembly and elastomeric stroke space and other related elements.
Moreover the material of second portion 18 is not limited to single metal material, also can comprise composite materials such as alloy.Secondly, second portion 18 is fixed in the first 19, its fixed form can utilize sticker that both are fixed, and also can utilize modes such as hot sticky, injection mo(u)lding that both are fixed or forms the lower edge that a fixed part inwardly fixes first 19 at the lower edge of second portion 18.So the keycap 10 of sandwich construction not only has enough mechanical strengths and bears external force, also increases the stroke of plunger assembly, and makes the space of keycap 10 belows increase, and can hold more element, helps the structural design of whole button.
Fig. 4 is a generalized section, in order to another embodiment of explanation the utility model, is used for the keycap of the sandwich construction of shear-type key switch.Can hold a shear mechanism (not showing on the figure) between one keycap 20 and the pedestal (not showing on the figure) moves up and down in order to keycap 20 relative substrates to be provided.
Keycap 20 of the present utility model is made up of outside first 26 first 26 and a second portion 28 covers.In this embodiment, first 26 can be considered the internal layer of keycap 20, mainly forms the part of keycap 20 and shear mechanism syndeton, for example some parts 24 of accepting.Be noted that first 26 of the present utility model because comprise syndeton, so the material of first 26 is general plastic macromolecular material, for example plastic material.Secondly, geometry and the function of accepting part 24 also are not limited to the situation described in the present embodiment, and all similar distressed structures all are included in the utility model scope.
Moreover the second portion 28 of present embodiment can be considered the skin of keycap 20, has the profile of general keycap, and wherein a side and first 26 are connected and fixed, and opposite side comprises that a contact-making surface 22 provides the contact-making surface that applies an external force in the moving up and down of keycap 20.The contact-making surface 22 that is noted that present embodiment also can have a curved surfaces, and is not limited to smooth plane fully.
Because contact-making surface 22 must have enough intensity and bear external force as the contact-making surface of external force, therefore with the material of metal material as second portion 28.Moreover, because the strength of materials of metal material is higher than the strength of materials of macromolecular material, therefore the thickness t 2 of second portion 28 on the direction of vertical contact-making surface 22 be less than the thickness t 3 of first 26, makes the thickness summation (t2+t3) of contact-making surface 22 less than the keycap thickness t 1 that forms with macromolecular material among Fig. 1, fully.Therefore the utility model utilizes the keycap 20 of sandwich construction, and preferable mechanical strength can be provided, and can also make the thickness of contact-making surface 22 reduce, thereby increases the stroke of keycap 20 below plunger assemblies, for example distortion of scissor plunger assembly and displacement.
Moreover the material of second portion 28 is not limited to single metal material, also can comprise composite materials such as alloy.And the fixed form of second portion 28 and first 26, can utilize sticker that both are fixed, also can utilize modes such as hot sticky, injection mo(u)lding that both are fixed, or second portion 28 utilize clasp (not showing on the figure) to hook first 26 and fix.So the keycap 20 of sandwich construction not only has enough mechanical strengths and bears external force, also increases the stroke of shear mechanism, and makes the space of keycap 20 belows increase, and can hold more element, helps the structural design of whole button.
Fig. 5 A and Fig. 5 B figure, it is in the keycap of sandwich construction of Fig. 3 or Fig. 4, the following view plane schematic diagram of first.Among Fig. 5 A, first 26 still has thickness in contact-making surface 12 belows.Yet, in actual design, first 26 is in the thickness t 3 of contact-making surface 12 belows, the minimizing of can in feasible making, trying one's best, even there is not thickness t 3 fully, and the upper edge portion of plunger assembly 24 and shaped as frame part are all around only arranged, shown in Fig. 5 B, first 26 is a hollow in contact-making surface 12 belows.
Claims (10)
1. keycap, this keycap is used to have a button of supporting construction, it is characterized in that, and this keycap comprises: layer segment forms with one first material in one, and first surface of layer segment has at least one accepting partly in order to connect this supporting construction in this; Reach an outer layer segment and form with one second material, this outer layer segment cover ground is fixed in a second surface of layer segment in this, and wherein the strength of materials of this first material is less than the strength of materials of this second material.
2. keycap as claimed in claim 1 is characterized in that, thickness of layer segment is greater than the thickness of this outer layer segment in this.
3. keycap as claimed in claim 1 is characterized in that, this outer layer segment comprises at least one in order to fix the clasp of layer segment in this.
4. keycap as claimed in claim 1 is characterized in that, layer segment is fixed in this outer layer segment in hot sticky mode in this.
5. keycap as claimed in claim 1 is characterized in that, layer segment is fixed in this outer layer segment with the method for injection mo(u)lding in this.
6. keycap as claimed in claim 1 is characterized in that, this first material comprises a macromolecular material.
7. keycap as claimed in claim 1 is characterized in that, this second material comprises a metal material.
8. keycap as claimed in claim 1 is characterized in that this supporting construction comprises the plunger assembly of a spring at least.
9. keycap as claimed in claim 1 is characterized in that, this supporting construction comprises a scissor lift structure at least.
10. keycap with sandwich construction, this keycap with sandwich construction is used for a mechanical type key switch, it is characterized in that, this keycap with sandwich construction comprises: a first forms with one first material, and this first comprises that at least one part of accepting is in order to connect a plunger assembly of this mechanical type key switch; Reach a second portion and form with one second material that is different from this first material, this this first of second portion cover, this second portion has a contact-making surface in order to bear an external force, and wherein the strength of materials of this second material is greater than the strength of materials of this first material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02236935 CN2561076Y (en) | 2002-06-04 | 2002-06-04 | Key cap with multi-layer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02236935 CN2561076Y (en) | 2002-06-04 | 2002-06-04 | Key cap with multi-layer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2561076Y true CN2561076Y (en) | 2003-07-16 |
Family
ID=33711035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02236935 Expired - Lifetime CN2561076Y (en) | 2002-06-04 | 2002-06-04 | Key cap with multi-layer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2561076Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887815A (en) * | 2010-06-23 | 2010-11-17 | 海洋王照明科技股份有限公司 | Switch button and lamp with same |
| CN108199706A (en) * | 2017-12-28 | 2018-06-22 | 浙江中控自动化仪表有限公司 | Explosion-proof intrinsic safety type button and its keyboard |
-
2002
- 2002-06-04 CN CN 02236935 patent/CN2561076Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887815A (en) * | 2010-06-23 | 2010-11-17 | 海洋王照明科技股份有限公司 | Switch button and lamp with same |
| CN108199706A (en) * | 2017-12-28 | 2018-06-22 | 浙江中控自动化仪表有限公司 | Explosion-proof intrinsic safety type button and its keyboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120604 Granted publication date: 20030716 |