CN100481294C - Press key structure - Google Patents
Press key structure Download PDFInfo
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- CN100481294C CN100481294C CNB2005100878587A CN200510087858A CN100481294C CN 100481294 C CN100481294 C CN 100481294C CN B2005100878587 A CNB2005100878587 A CN B2005100878587A CN 200510087858 A CN200510087858 A CN 200510087858A CN 100481294 C CN100481294 C CN 100481294C
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- base plate
- connecting rod
- keycap
- press
- key structure
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Abstract
The invention relates to a keypress structure, which comprises a cap, a base module, one first connecting rod, one second connecting rod and one flexible rod, wherein said base module comprises one bottom plate and one movable plate; the bottom plate has one first guide groove and one second guide groove; the mobile plate has one first limit part and one second limit part, to move relative to the bottom plate; the first connecting rod is movably connected to the cap and the first guide groove; the second connecting rod is movably connected to the cap and the second guide groove; the flexible element is connected to the bottom plate and the first connecting rod to give one side flexible force on the first connecting rod; when the keypress structure is in operation state, the first limit part contacts the second connecting rod; when the sliding plate is switched into one contain state, the second limit part pushes the second connecting rod towards the outer side of said structure and lifts down the cap towards to the bottom plate.
Description
Technical field
The present invention relates to a kind of press-key structure, particularly relate to a kind of button or keyboard of making descending, but can save the press-key structure of space and convenient for collecting simultaneously than the labour-saving mode.
Background technology
See also Figure 1A, Figure 1B, this two figure represents the schematic diagram of an existing press button mechanism.Shown in Figure 1A, one existing press button mechanism mainly comprises a base plate B, a first connecting rod L1, a second connecting rod L2, a flexible member E and a keycap C, wherein first connecting rod L1 has one first end L11 and one second end L12, and second connecting rod L2 has one the 3rd end L23 and one the 4th end L24.
Aforementioned first, second connecting rod L1, L2 articulate mutually by pivot H, and wherein the second end L12 articulates below base plate B versatilely, and the 3rd end L23 articulates top keycap C versatilely; In addition, the first end L11 and the 4th end L24 then articulate top keycap C and below base plate B respectively.Then see also Figure 1A and Figure 1B, aforementioned flexible member E is connected between keycap C and the base plate B, the position is not in one first height h1 when keycap C is pressed, and is subjected to a pressed by external force and drops to one second highly during h2 as keycap C, and flexible member E is compressed and is out of shape (shown in Figure 1B); When aforementioned external force discharged, flexible member E can force keycap C to return back to the first height h1 position shown in Figure 1A by the elasticity of itself.
Because in traditional press button mechanism, flexible member E mainly is subjected to the compression of vertical base plate direction and is out of shape, therefore when pushing keycap C, often comparatively require great effort.Because above-mentioned shortcoming, the press-key structure that how to provide a comparatively laborsaving while can save the space begins to become an important problem.
Summary of the invention
The invention provides a kind of press-key structure, can be applicable to the keyboard on the mobile computer, it mainly comprises a keycap, a base module, a first connecting rod, a second connecting rod and a flexible member.Aforementioned floor module comprises a base plate and a portable plate.Above-mentioned base plate has one first channel guide section and one second channel guide section.Above-mentioned portable plate has one first limiting section and one second limiting section, and can move with respect to base plate.Aforementioned first connecting rod has one first end and one second end, and wherein first end connects keycap versatilely, and second end and first channel guide section articulate, and can slide in first channel guide section.But aforementioned second connecting rod and first connecting rod articulate in the mode of interlock, and wherein second connecting rod has one the 3rd end and one the 4th end, and the 3rd end connects keycap versatilely, and the 4th end articulates second guide groove, and can slide in second channel guide section.Aforementioned flexible member connects base plate and first connecting rod, and act on a side direction elastic force and give first connecting rod, when press-key structure was in a mode of operation, portable plate was positioned at a primary importance, this moment, the first limiting section butt the 4th end made keycap to move up and down with respect to base plate; When portable plate moved to the second place by primary importance, second limiting section promoted the 4th end side shifting outside press-key structure, and forced keycap to descend towards the base plate direction, with so that press-key structure switches to a receiving state by mode of operation.
In a preferred embodiment, aforementioned flexible member is an extension spring.
In a preferred embodiment, aforementioned first connecting rod has an articulated section, contiguous second end, and flexible member has a stiff end and a movable end, and the aforementioned fixation end connects base plate, and movable end connects the articulated section in rotating mode.
In a preferred embodiment, the aforementioned fixation end is and colludes shape, and base plate has a protuberance, and the aforementioned fixation end catches on protuberance in order to be connected with base plate.
In a preferred embodiment, when aforementioned keycap is subjected to an external force effect and when base plate moved, second end slided towards a first direction in first channel guide section, flexible member rotated around the articulated section and changed the direction of aforementioned side direction elastic force this moment.
In a preferred embodiment, aforementioned base plate has more a perforate, and at least a portion of flexible member is placed in the aforementioned perforate.
In a preferred embodiment, the aforementioned keys structure more comprises a circuit board, is arranged between keycap and the base plate, and the foregoing circuit plate has an opening, and corresponding to aforementioned perforate, flexible member passes opening and is placed in the aforementioned perforate.
In a preferred embodiment, aforementioned side direction elastic force has a horizontal component and the vertical stress component perpendicular to base plate that is parallel to base plate, and wherein horizontal component is greater than vertical stress component.
In a preferred embodiment, aforementioned first limiting section comprises one first projection, and second limiting section comprises one second projection, and wherein the 4th end is between first projection and one second projection.
The present invention more provides a kind of press-key structure, comprises a keycap, a floor module, a first connecting rod, a second connecting rod and a tensile elasticity element.Above-mentioned floor module has one first channel guide section, one second channel guide section and one first limiting section.Above-mentioned first connecting rod has one first end and one second end, and wherein first end connects keycap versatilely, and second end and first channel guide section articulate, and can slide in first channel guide section.But above-mentioned second connecting rod and first connecting rod articulate in the mode of interlock, and have one the 3rd end and one the 4th end, and wherein the 3rd end connects keycap versatilely, and the 4th end and second channel guide section articulate, and can slide in second channel guide section.Aforementioned tensile elasticity element connects base plate and first connecting rod, and acts on a side direction elastic force and give first connecting rod.Do the time spent when keycap is subjected to an external force, the 4th end butt first limiting section, and second end slides towards a first direction in first channel guide section, with so that keycap near base plate; When external force discharged, aforementioned side direction elastic force ordered about second end and slides towards a second direction, with so that keycap away from base plate, wherein second direction is in contrast to first direction.
In a preferred embodiment, aforementioned floor module comprises one first base plate and one second base plate, and second base plate is fixed in first base plate, and wherein first, second channel guide section is arranged at first base plate, and first limiting section is arranged at second base plate.
In a preferred embodiment, aforementioned flexible member is an extension spring.
In a preferred embodiment, aforementioned first connecting rod has an articulated section, contiguous second end, and aforementioned flexible member has a stiff end and a movable end, and stiff end connects floor module, and movable end connects the articulated section in rotating mode.
In a preferred embodiment, aforementioned floor module has more a perforate, and at least a portion of aforementioned flexible member is placed in the perforate.
In a preferred embodiment, the aforementioned keys structure more comprises a circuit board, is arranged between keycap and the floor module, and the foregoing circuit plate has an opening, and corresponding to aforementioned perforate, flexible member passes above-mentioned opening and is placed in the perforate.
In a preferred embodiment, aforementioned side direction elastic force has a horizontal component and the vertical stress component perpendicular to floor module that is parallel to floor module, and wherein aforementioned levels component is greater than vertical stress component.
In a preferred embodiment, the distance of the aforementioned articulated section and first end is greater than the distance of second end and first end.
Description of drawings
Figure 1A, Figure 1B are the schematic diagram of existing press-key structure;
Fig. 2 is the exploded view of first embodiment among the present invention;
Schematic diagram when Fig. 3 A, Fig. 3 B are in mode of operation for the utility model press-key structure;
Schematic diagram when Fig. 4 A, Fig. 4 B are in receiving state for the utility model press-key structure;
Fig. 5 is the exploded view of second embodiment among the present invention; And
Schematic diagram when Fig. 6 A, Fig. 6 B are in mode of operation for the press-key structure of Fig. 5.
Embodiment
At first see also Fig. 2, the figure shows the exploded view of first embodiment among the present invention.Press-key structure in the present embodiment mainly comprises a base plate B, a circuit board P, a portable plate S, a flexible member R, a first connecting rod L1, a second connecting rod L2 and a keycap C, and foregoing circuit plate P is arranged between portable plate S and the base plate B.In particular, aforementioned portable plate S and base plate B constitute a base module, and wherein portable plate S can move with respect to base plate B, and has one first limiting section S1 and one second limiting section S2; As scheme shown in Figure 2, the above-mentioned first limiting section S1 has one first projection S1 ', and the second limiting section S2 has one second projection S2 ', when portable plate S moves with respect to base plate B, can force keycap C to descend and switch to a receiving state by a mode of operation towards base plate B direction.
Then see also Fig. 2 and Fig. 3 A, aforementioned first, second connecting rod L1, L2 articulate mutually by a pivot H and form a scissors shape structure, wherein first connecting rod L1 has one first end L11 and one second end L12, and second connecting rod L2 has one the 3rd end L23 and one the 4th end L24.As shown in Figure 3A, the first end L11 of aforementioned first connecting rod L1 articulates keycap C versatilely, the second end L12 then with base plate B on one first channel guide section B1 articulate, and can in the first channel guide section B1, slide.In addition, the 3rd end L23 of aforementioned second connecting rod L2 articulates keycap C versatilely, the 4th end L24 then with base plate B on one second channel guide section B2 articulate, and can in the second channel guide section B2, slide.
Flexible member R in the present embodiment for example is an extension spring, have a stiff end R1 and a movable end R2, said fixing end R1 is and colludes shape, in order to catch on the protuberance B3 on the base plate B and then to be connected with base plate B, movable end R2 then connects an articulated section L13 on the first connecting rod L1 in rotating mode in addition, wherein articulated section L13 is close to the second end L12, and the distance of the articulated section L13 and the first end L11 is greater than the distance of the second end L12 and the first end L11.Because this moment, flexible member R was subjected to the stretching (preloading) of some, thus can provide a side direction elastic force to give first connecting rod L1, in order to the second end L12 is limited to the bottom side (as shown in Figure 3A) of the first channel guide section B1.
In Fig. 3 A, first, second channel guide section B1, B2 on the aforementioned base plate B and protuberance B3 pass the perforation S ' on circuit board P and the portable plate S in regular turn, and then are connected with first, second connecting rod L1, L2 and flexible member R respectively.In particular, aforementioned base plate B is provided with a perforate B ', and is provided with corresponding opening P ' on circuit board P, and at least a portion of flexible member R is passed opening P ' and is placed in the perforate B ' during assembling, in order to reduce the height of press-key structure in Z-direction.
Then see also Fig. 3 A, Fig. 3 B, this two figure represents that press-key structure is in the schematic diagram of mode of operation, and this moment, portable plate S was positioned at a primary importance.As shown in Figure 3A, when keycap C is not subjected to pressed by external force, the second end L12 of first connecting rod L1 is owing to the side direction elastic force effect that is subjected to flexible member R is connected to the first channel guide section B1 bottom side, wherein aforementioned side direction elastic force has a horizontal component (X-direction) and the vertical stress component perpendicular to base plate B (Y direction) that is parallel to base plate B, and above-mentioned horizontal component is greater than vertical stress component.At this moment, the 4th end L24 of second connecting rod L2 is resisted against between the first projection S1 ' and the second channel guide section B2 bottom side, with so that keycap C can maintain one first the height h1.
See also Fig. 3 B again, when keycap C is subjected to down a pressed by external force, keycap C drops to one second height h2 by the first height h1 towards base plate B direction because of being subjected to the external force effect, this moment, the second end L12 slided towards a first direction A1 (X-direction), and flexible member R rotates the direction that changes its side direction elastic force by movable end R2 around articulated section L13.Because this moment, flexible member R was subjected to stretching further, so when external force discharges, can make keycap C automatically return to the first original height h1 by the side direction elastic force effect of flexible member R.
Then see also Fig. 4 A and Fig. 4 B, when desiring to make press-key structure switch to a receiving state by mode of operation, portable plate S can be moved to a second place by aforementioned primary importance towards a second direction A2 with respect to base plate B, wherein second direction A2 is in contrast to aforementioned first direction A1.Shown in Fig. 4 A, when portable plate S is mobile towards the press-key structure outside (second direction A2), the second projection S2 ' of position on portable plate S and the 4th end L24 butt, and the second projection S2 ' can promote the 4th end L24 further and move towards second direction A2, and then forces keycap C to drop to one the 3rd height h3 (shown in Fig. 4 B) by the first height h1 towards base plate B direction.In particular, this moment, the second end L12 was resisted against the first channel guide section B1 bottom side constantly, and flexible member R is not subjected to stretching further.
Because the flexible member R in the present embodiment mainly provides the elastic force of a side direction to give first connecting rod L1, so portable plate S is when switching between mode of operation and receiving state, and all press-key structure that can be more traditional is more laborsaving.Wherein, the 4th end L24 of second connecting rod L2 is positioned between first, second projection S1 ', the S2 ', when being in mode of operation, and the 4th end L24 and the first projection S1 ' butt; When switching to receiving state, the 4th end L24 then with the second projection S2 ' butt.In the present embodiment, because sliding shoe S can not make flexible member R be subjected to stretching further when mobile, so the person's of being easy to use operation, the while can increase the useful life of flexible member R.
Then see also Fig. 5, the figure shows the exploded view of second embodiment among the present invention.As shown in the figure, press-key structure in the present embodiment mainly can use in a mode of operation, comprise one first base plate M, one second base plate N, a circuit board P, a flexible member R, a first connecting rod L1, a second connecting rod L2 and a keycap C, foregoing circuit plate P is arranged between the first base plate M and the second base plate N.In particular, aforementioned first, second base plate M, N are mutually affixed and constitute a base module, wherein on the first base plate M, be provided with first, second channel guide section M1, M2 and protuberance M3, then be provided with one first limiting section N1 on this external second base plate N, and the above-mentioned first limiting section N1 has one first projection N1 '.
See also Fig. 5 and Fig. 6 A again, aforementioned flexible member R for example is an extension spring or other tensile elasticity element, have a stiff end R1 and a movable end R2, said fixing end R1 is and colludes shape, in order to catch on the protuberance M3 on the first base plate M and then to be connected with the first base plate M, movable end R2 connects an articulated section L13 on the first connecting rod L1 in rotating mode in addition, and wherein the distance of the articulated section L13 and the first end L11 is greater than the distance of the second end L12 and the first end L11.Because this moment, flexible member R was subjected to the stretching of some, so can provide a side direction elastic force to give first connecting rod L1, in order to the second end L12 is limited to the first channel guide section M1 bottom side (as shown in Figure 6A), wherein aforementioned side direction elastic force has a horizontal component (X-direction) and the vertical stress component perpendicular to the first base plate M1 (Y direction) that is parallel to the first base plate M1, and above-mentioned horizontal component is greater than vertical stress component.
In Fig. 6 A, first, second channel guide section M1, M2 on the aforementioned first base plate M and protuberance M3 pass the perforation N ' on the circuit board P and the second base plate N in regular turn, and then are connected with first, second connecting rod L1, L2 and flexible member R respectively.In particular, the aforementioned first base plate M is provided with a perforate M ', and be provided with corresponding opening P ' on circuit board P, at least a portion of flexible member R is passed opening P ' and is placed in the perforate M ' during assembling, can reduce the height of press-key structure in Z-direction thus.
Then see also Fig. 6 A, Fig. 6 B, the schematic diagram when this two figure represents that press-key structure is in mode of operation.As shown in Figure 6A, when keycap C is not subjected to pressed by external force, the second end L12 butt, the first channel guide section M1 bottom side of first connecting rod L1, the 4th end L24 of second connecting rod L2 then is resisted against between the first projection S1 and the second channel guide section M2 bottom side, with so that keycap C can maintain one first the height h1.
See also Fig. 6 B again, when keycap C is subjected to down a pressed by external force, keycap C drops to one second height h2 by the first height h1 towards the first base plate M direction because of being subjected to the external force effect, this moment, the second end L12 slided towards a first direction A1 (X-direction), and flexible member R then rotates the direction that changes its side direction elastic force by movable end R2 around articulated section L13.Because this moment, flexible member R was subjected to stretching further, so when external force discharges, can make keycap C automatically return to the first original height h1 by the side direction elastic force effect of flexible member R.In addition, aforementioned first first, second channel guide section of limiting section N1 B1, B2 and the also visual different design requirement of protuberance B3 and optionally be arranged on the first base plate M or the second base plate N can reach above-mentioned effect equally.
Though disclosed the present invention in conjunction with above detailed embodiment; yet it is not in order to limit scope of the present invention; anyly be familiar with this operator; without departing from the spirit and scope of the present invention; can do some change and retouching, so protection scope of the present invention should be with being as the criterion that claim was defined.
Claims (13)
1. press-key structure comprises:
One keycap;
One floor module comprises:
One base plate has one first channel guide section and one second channel guide section;
One portable plate has one first limiting section and one second limiting section, and this portable plate optionally moves between a primary importance and a second place with respect to this base plate;
One first connecting rod has one first end, one second end and an articulated section, and wherein this first end connects this keycap versatilely, and this second end and this first channel guide section articulate, and can slide in this first channel guide section, contiguous this second end in this articulated section;
One second connecting rod, but articulate with the mode of this first connecting rod with interlock, this second connecting rod has one the 3rd end and one the 4th end, and wherein the 3rd end connects this keycap versatilely, and the 4th end articulates this second guide groove, and can slide in this second channel guide section; And
One flexible member, have a stiff end and a movable end, this stiff end connects this base plate, this movable end connects this articulated section in rotating mode, and act on a side direction elastic force to this first connecting rod, this side direction elastic force has a horizontal component and the vertical stress component perpendicular to this base plate that is parallel to this base plate, and wherein this horizontal component is greater than this vertical stress component;
Wherein, when this keycap is subjected to an external force effect and when this base plate moved, this second end slided towards a first direction in this first channel guide section, this flexible member rotated around this articulated section and changed the direction of this side direction elastic force this moment,
When this press-key structure was in a mode of operation, this portable plate was positioned at this primary importance, and this moment, this first limiting section butt the 4th end made this keycap to move up and down with respect to this base plate; When this portable plate moves to the second place by this primary importance, this second limiting section promotes the 4th end side shifting outside this press-key structure, and force this keycap to descend towards this base plate direction, with so that this press-key structure switches to a receiving state by this mode of operation.
2. press-key structure as claimed in claim 1, wherein this flexible member is an extension spring.
3. press-key structure as claimed in claim 1, wherein this stiff end is and colludes shape, and this base plate has a protuberance, and this stiff end catches on this protuberance in order to be connected with this base plate.
4. press-key structure as claimed in claim 1, wherein this base plate also has a perforate, and at least a portion of this flexible member is placed in this perforate.
5. press-key structure as claimed in claim 4 wherein more comprises a circuit board, is arranged between this keycap and this base plate, and this circuit board has an opening, and corresponding to this perforate, this flexible member passes this opening and is placed in this perforate.
6. press-key structure as claimed in claim 1, wherein this first limiting section comprises one first projection, and this second limiting section comprises one second projection, and the 4th end is between this first, second projection.
7. press-key structure comprises:
One keycap;
One floor module has one first channel guide section, one second channel guide section and one first limiting section;
One first connecting rod has one first end and one second end, and wherein this first end connects this keycap versatilely, and this second end and this first channel guide section articulate, and can slide in this first channel guide section;
One second connecting rod, but articulate with the mode of this first connecting rod with interlock, this second connecting rod has one the 3rd end and one the 4th end, and wherein the 3rd end connects this keycap versatilely, and the 4th end and this second channel guide section articulate, and can slide in this second channel guide section; And
One tensile elasticity element, connect this floor module and this first connecting rod, and act on a side direction elastic force and have a horizontal component and the vertical stress component perpendicular to this floor module that is parallel to this floor module for this first connecting rod, this side direction elastic force, wherein this horizontal component is greater than this vertical stress component;
Wherein, do the time spent when this keycap is subjected to an external force, this first limiting section of the 4th end butt, and this second end slides towards a first direction in this first channel guide section, with so that this keycap near this floor module; When this external force discharged, this side direction elastic force ordered about this second end and slides towards a second direction, usefulness so that this keycap away from this floor module, and this second direction is in contrast to this first direction.
8. press-key structure as claimed in claim 7, wherein this floor module comprises one first base plate and one second base plate, this second base plate is fixed in this first base plate, and this first, second channel guide section is arranged at this first base plate, and this first limiting section is arranged at this second base plate.
9. press-key structure as claimed in claim 7, wherein this flexible member is an extension spring.
10. press-key structure as claimed in claim 7, wherein this first connecting rod has an articulated section, contiguous this second end, and this flexible member has a stiff end and a movable end, this stiff end connects this floor module, and this movable end connects this articulated section in rotating mode.
11. press-key structure as claimed in claim 7, wherein this floor module also has a perforate, and at least a portion of this flexible member is placed in this perforate.
12. press-key structure as claimed in claim 11 wherein more comprises a circuit board, is arranged between this keycap and this floor module, this circuit board has an opening, and corresponding to this perforate, this flexible member passes this opening and is placed in this perforate.
13. press-key structure as claimed in claim 10, the distance of this articulated section and this first end is greater than the distance of this second end and this first end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100878587A CN100481294C (en) | 2005-08-01 | 2005-08-01 | Press key structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100878587A CN100481294C (en) | 2005-08-01 | 2005-08-01 | Press key structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1909130A CN1909130A (en) | 2007-02-07 |
| CN100481294C true CN100481294C (en) | 2009-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100878587A Expired - Fee Related CN100481294C (en) | 2005-08-01 | 2005-08-01 | Press key structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN100481294C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11551889B2 (en) | 2019-06-25 | 2023-01-10 | Darfon Electronics Corp. | Key switch |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336531B (en) * | 2014-08-08 | 2019-04-26 | 联想(北京)有限公司 | A kind of input unit and portable electronic device |
| CN110277266B (en) * | 2019-06-28 | 2021-02-23 | 苏州达方电子有限公司 | Push-button |
-
2005
- 2005-08-01 CN CNB2005100878587A patent/CN100481294C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11551889B2 (en) | 2019-06-25 | 2023-01-10 | Darfon Electronics Corp. | Key switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1909130A (en) | 2007-02-07 |
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Granted publication date: 20090422 Termination date: 20130801 |