CN109599287B - Optical key and optical keyboard capable of adjusting press trigger point - Google Patents
Optical key and optical keyboard capable of adjusting press trigger point Download PDFInfo
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- CN109599287B CN109599287B CN201811438759.2A CN201811438759A CN109599287B CN 109599287 B CN109599287 B CN 109599287B CN 201811438759 A CN201811438759 A CN 201811438759A CN 109599287 B CN109599287 B CN 109599287B
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- optical
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- transmission channel
- bottom plate
- elastic arm
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/84—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback
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Abstract
The invention discloses an optical key capable of adjusting a pressing trigger point and an optical keyboard. An optical transmission channel is formed between the optical transmitter and the optical receiver of the bottom plate. The supporting seat enters or exits the optical transmission channel to generate a trigger signal. The elastic arm component generates bending deformation along with the movement of the sleeve component. The adjusting member has a stopping portion capable of moving relative to the light transmission channel to be positioned at a first position or a second position. The elastic arm assembly shields the optical transmission channel through the first deformation amount to generate a trigger signal when the adjusting piece is located at the first position, and shields the optical transmission channel through the second deformation amount to generate the trigger signal when the adjusting piece is located at the second position. The optical key and the optical keyboard of the invention change the width of the optical transmission channel by utilizing the movable adjusting piece, thereby changing the position of the trigger point of the pressing stroke.
Description
Technical Field
The present invention relates to an optical key and an optical keyboard, and more particularly, to an optical key and an optical keyboard with adjustable pressing trigger points.
Background
In practical applications, in order to provide different button pressing handfeels (tactileeedback) for users, the button structures with different specifications must be designed for the users to purchase; such as adjustment of a key depression stroke (travel distance). That is, the existing key structure can only provide a fixed pressing hand feeling, but cannot be used by the user to adjust the pressing hand feeling; therefore, when a user needs different key pressing handfeel, a new keyboard needs to be additionally purchased or an old key structure on the original keyboard needs to be removed and replaced with a new key structure; this is costly, which greatly limits the flexibility of use and the ease of operation of the key structure.
Disclosure of Invention
The present invention is directed to an optical key and an optical keyboard capable of adjusting a pressing trigger point to solve the above problems.
In order to achieve the above object, the present invention provides an optical key capable of adjusting a pressing trigger point, comprising: bottom plate, supporting seat, cover barrel spare and adjusting part. The bottom plate comprises an optical transmitter and an optical receiver, and an optical transmission channel is formed between the optical transmitter and the optical receiver; the supporting seat is arranged on the bottom plate and is provided with an elastic arm component, and the elastic arm component enters or exits the optical transmission channel to generate a trigger signal; the sleeve part is movably arranged in the supporting seat, and the elastic arm component generates bending deformation along with the movement of the sleeve part; the adjusting piece is movably arranged on the bottom plate and is provided with a stopping part, and the stopping part can move relative to the optical transmission channel and is positioned at a first position or a second position so as to be matched with the elastic arm component to shield the optical transmission channel; the elastic arm assembly shields the optical transmission channel through a first deformation amount to generate the trigger signal when the adjusting piece is located at the first position, and shields the optical transmission channel through a second deformation amount to generate the trigger signal when the adjusting piece is located at the second position, wherein the first deformation amount is different from the second deformation amount.
As an optional technical solution, the adjusting member is disposed above the base plate, and the adjusting member further has an extending portion, the extending portion passes through the first hole of the base plate, and the extending portion is pushed to pull the blocking portion to switch to the first position or the second position.
As an optional technical solution, the optical key further includes an actuating plate movably disposed below the bottom plate, the extending portion is embedded in the positioning hole of the actuating plate, and the pushing force is applied to the extending portion when the actuating plate moves.
As an optional technical solution, the adjusting member is disposed below the bottom plate, and the adjusting member further has a bridging portion, the bridging portion passes through the second hole of the bottom plate to support the stopping portion, and the bridging portion is pushed to pull the stopping portion to switch to the first position or the second position.
As an alternative solution, the width of the optical transmission channel changes with the movement of the stopper.
As an alternative solution, the sleeve member includes a pushing portion, and the pushing portion pushes the elastic arm assembly to generate the bending deformation along with the movement of the sleeve member.
As an optional technical solution, the optical key further includes a reset component, the reset component is disposed between the bottom plate and the sleeve member, and the elastic restoring force of the reset component drives the sleeve member to move relative to the bottom plate.
As an optional technical solution, the optical key further includes a key cap disposed on the sleeve member, and the sleeve member moves along with the key cap when the key cap is pressed, so that the elastic arm assembly generates the bending deformation.
As an optional technical solution, the supporting seat includes an upper supporting portion and a lower supporting portion that are engaged with each other, the lower supporting portion is disposed on the bottom plate, the lower supporting portion supports the upper supporting portion, and the sleeve member is slidably disposed between the upper supporting portion and the lower supporting portion.
In addition, the present invention further provides an optical keyboard capable of adjusting a pressing trigger point, comprising: and the bottom plates of the plurality of optical keys are integrated into a whole.
The optical key and the optical keyboard of the invention change the width of the optical transmission channel by utilizing the movable adjusting piece, thereby changing the position of the trigger point of the pressing stroke. The optical key with a wider optical transmission channel provides a long-range working depth, namely the optical key generates a trigger signal when being pressed to a deeper stroke; the optical key with a narrower optical transmission channel provides a short-range working depth, and a trigger signal can be generated by slightly pressing the optical key. In the above embodiment, the elastic arm component shields the optical transmission channel to generate the trigger signal, but the elastic arm component can also be used to remove the optical transmission channel, so that the optical receiver can receive the optical signal of the optical transmitter as the generation mechanism of the trigger signal. In various embodiments, the conditioning element may be placed above or below the base plate; the adjusting piece arranged above the bottom plate is controlled by the actuating plate below the bottom plate to switch the position, and the stopping part is penetrated through the bottom plate by the adjusting piece arranged below the bottom plate to shield or be far away from the light transmission channel.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Drawings
Fig. 1 is a schematic perspective view of an optical keyboard according to an embodiment of the present invention.
Fig. 2 is an exploded view of the optical key according to the first embodiment of the present invention.
Fig. 3 and 4 are perspective views of the sleeve member and the elastic arm assembly at different operation stages according to the first embodiment of the present invention.
Fig. 5 and fig. 6 are partial perspective views of the optical key according to the first embodiment of the invention at different operation stages in a first actuation mode.
Fig. 7 and 8 are partial perspective views illustrating the optical key of the first embodiment of the invention at different operation stages in a second actuation mode.
Fig. 9 is an exploded view of an optical key according to a second embodiment of the present invention.
Fig. 10 is a partial perspective view of an optical key according to a second embodiment of the present invention in a first illumination mode.
Fig. 11 is a partial perspective view of an optical key according to a second embodiment of the present invention in a second trigger mode.
Detailed Description
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", "side", etc., refer to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.
In the following embodiments, the same portions are denoted by the same reference numerals in different drawings.
Referring to fig. 1 and fig. 2, fig. 1 is a perspective view of an optical keyboard 10 according to an embodiment of the present invention, and fig. 2 is an exploded view of an optical key 12 according to a first embodiment of the present invention. The optical keyboard 10 may include a plurality of optical keys 12. The optical key 12 includes a bottom plate 14, a light detection module 17 is disposed on the bottom plate 14, and the light detection module 17 has a light emitter 18 and a light receiver 20. The optical transmitter 18 and the optical receiver 20 form an optical transmission channel therebetween for detecting whether the corresponding optical key 12 is pressed. In practical operation, the bottom plates 14 of the plurality of optical keys 12 on the optical keyboard 10 may be integrated into a whole to form a whole bottom plate structure, and the plurality of optical keys 12 may be respectively disposed at different positions of the whole bottom plate structure.
The optical key 12 further includes a support base 22, a sleeve member 24, an adjustment member 26, a reset element 28, and a key cap 30. The support base 22 may include an upper support portion 32 and a lower support portion 34 that are engaged with each other. The key cap 30 is disposed on the sleeve member 24, and the sleeve member 24 is movably disposed in the supporting seat 22, specifically, the sleeve member 24 is disposed between the upper supporting portion 32 and the lower supporting portion 34. The lower support portion 34 is provided on the bottom plate 14 and supports the upper support portion 32. The support base 22 (specifically, the lower support portion 34 of the support base 22) has an elastic arm assembly 36; when the user presses the key cap 30, the pushing portion 38 of the sleeve 24 can drive the elastic arm 36 to generate bending deformation along with the up-and-down movement of the sleeve 24, and the elastic arm 36 can enter or exit the optical transmission channel of the optical detection module 17, thereby generating a trigger signal when the optical key 12 is triggered. A reset assembly 28 is disposed between the base plate 14 and the sleeve member 24. After the external force applied to the key cap 30 is removed, the elastic restoring force of the restoring member 28 can drive the sleeve member 24 to move relative to the base plate 14 and restore to the original position. The adjuster 26 is movably disposed on the base 14. The adjustment member 26 may have a stop portion 40 and an extension portion 42. The stopping portion 40 is movable relative to the optical transmission channel to be located at a first position or a second position for cooperating with the elastic arm assembly 36 to shield the optical transmission channel, thereby switching the actuation mode of the optical key 12. Extension 42 passes through first break 44 of base plate 14 to engage alignment hole 46 of actuator plate 16. In this embodiment, the optical key 12 has an actuating plate 16, and the actuating plate 16 moves relative to the bottom plate 14 and can simultaneously provide a pushing force to the extending portion 42 to pull the stopping portion 40 to switch to the first position or the second position.
Referring to fig. 3 to 8, fig. 3 and 4 are perspective views of the sleeve member 24 and the elastic arm assembly 36 at different operation stages according to the first embodiment of the present invention, fig. 5 and 6 are partial perspective views of the optical key 12 at different operation stages in the first actuation mode according to the first embodiment of the present invention, and fig. 7 and 8 are partial perspective views of the optical key 12 at different operation stages in the second actuation mode according to the first embodiment of the present invention. In this embodiment, the adjuster 26 is movably disposed above the base plate 14 and the actuator plate 16 is movably disposed below the base plate 14. As shown in fig. 3, the optical key 12 is not pressed, the pushing portion 38 of the sleeve 24 does not stop against the elastic arm assembly 36, or the pushing portion 38 contacts the elastic arm assembly 36 but does not drive the elastic arm assembly to elastically deform, or the pushing portion 38 pushes the elastic arm assembly 36 to slightly deform, so that the elastic arm assembly 36 does not shield or only partially shields the optical transmission channel of the optical detection module 17, and at this time, the optical transmission channel is clear and does not generate a trigger signal. If the optical key 12 is pressed, as shown in fig. 4, the pushing portion 38 pushes the elastic arm component 36 to bend outward, so that the elastic arm component 36 can block the optical transmission channel of the optical detection module 17 to generate a trigger signal.
As shown in fig. 5, the adjusting element 26 is located at the first position (since the actually entering optical transmission channel P1 is the stopping portion 40 of the adjusting element 26, the stopping portion 40 can also be considered to be located at the first position), that is, the adjusting element 26 does not overlap or slightly overlaps the optical transmission channel P1 of the optical detection module 17; at this time, the sleeve member 24 is not yet pressed down, the elastic arm assembly 36 is not pressed by the pushing portion 38 to be bent and deformed, the light transmission path P1 is opened, and no trigger signal is generated. If the pushing portion 38 of the sleeve 24 presses down and pushes the elastic arm assembly 36 to generate a bending deformation of the first deformation V1, as shown in fig. 6, the elastic arm assembly 36 shields the optical transmission channel P1 by the first deformation V1, so that the optical key 12 generates a trigger signal. It can be seen that the first burst mode optical transmission path P1 is wider, i.e., has a first width, and the sleeve member 24 is pushed deeper to drive the elastic arm assembly 36 to bend enough to cover the optical transmission path P1.
To switch the optical key 12 from the first actuation mode to the second actuation mode, only the actuation plate 16 needs to be translated, and the extending portion 42 is pushed by the actuation plate 16 to pull the stopping portion 40 from the first position to the second position, where the stopping portion 40 is located between the optical transmitter 18 and the optical receiver 20, so as to partially shield and form a narrower light transmission channel P1', for example, having a second width smaller than the first width. As shown in fig. 7, the sleeve member 24 has not been depressed, and the elastic arm assembly 36 has not been bent to deform without shielding the light transmission path P1'. If the user presses down on the sleeve member 24, the pushing portion 38 pushes against the elastic arm assembly 36 to generate the bending deformation of the second deformation amount V2, as shown in fig. 8. The optical transmission channel P1 'has a narrower range (i.e. has a second width) due to the adjusting member 26 moving to the second position, and the elastic arm assembly 36 can shield the optical transmission channel P1' by a second deformation V2 with a small amplitude, so that the optical key 12 generates the triggering signal. In other words, the user can change the position of the adjusting member 26 relative to the light detecting module 17 by translating the actuating plate 16, the light transmission channel P1 'of the second burst mode has a smaller width than the light transmission channel P1 of the first burst mode, and the elastic arm assembly 36 can shield the light transmission channel P1' only by slight deformation, i.e. the second deformation V2 is smaller than the first deformation V1; in the second actuation mode, the user can actuate the optical key 12 to generate the trigger signal by slightly pressing the key cap 30. In the present invention, the width of the optical transmission channel changes with the movement of the stopping portion 40, and the manufacturer can determine the first position and the second position according to the actual requirement, so that the keyboard has better use hand feeling.
Referring to fig. 9, fig. 9 is an exploded view of an optical key 12' according to a second embodiment of the present invention. In the second embodiment, the components having the same numbers as those in the first embodiment have the same structures and functions, and the description thereof will not be repeated. In this embodiment, the adjusting member 26 'of the optical key 12' is disposed below the bottom plate 14. The adjuster 26 'may include a stop 40' and a bridge 48. The bridge 48 is upwardly warped from the body of the adjuster 26' to pass through a second hole 50 of the base plate 14. The stopping portion 40 ' is connected to one end of the bridge portion 48 opposite to the main body of the adjusting member 26 ', that is, the bridge portion 48 supports the stopping portion 40 ' so that the stopping portion 40 ' protrudes from the upper surface of the main body of the adjusting member 26 '. With the movement of the adjusting element 26 'relative to the bottom plate 14, the bridge portion 48 can be pushed to pull the stopping portion 40' to switch to the first position or the second position, and the stopping portion 40 'can enter or exit the optical transmission channel of the optical detection module 17, thereby switching the triggering mode of the optical key 12'.
Referring to fig. 10 and 11, fig. 10 is a partial perspective view of an optical key 12 'in a first actuation mode according to a second embodiment of the present invention, and fig. 11 is a partial perspective view of the optical key 12' in the second actuation mode according to the second embodiment of the present invention. As shown in fig. 10, the adjusting element 26 'is located at the first position, and the blocking portion 40' does not overlap or slightly overlaps the optical transmission channel P2 of the optical detection module 17, and the optical transmission signal P2 may have a first width. When not pressed by the pushing portion 38, the elastic arm assembly 36 is not elastically deformed (as shown by the solid line range in the figure), and does not shield the light transmission path P2; if the pushing portion 38 drives the elastic arm assembly 36 to elastically deform (within the range of the dotted line shown in the figure) as the sleeve member 24 moves downward, the elastic arm assembly 36 shields the optical transmission channel P2 by the first deformation V1, so that the optical key 12' generates the trigger signal. Additionally, the user may translate the adjustment member 26 'to move the adjustment member 26' from the first position shown in FIG. 10 to the second position shown in FIG. 11; the stopper 40 ' is located between the optical transmitter 18 and the optical receiver 20, forming a narrower optical transmission channel P2 ', and the optical transmission channel P2 ' may have a second width, which is smaller than the first width. In the second actuation mode, the user lightly presses the optical key 12' and the elastic arm assembly 36 shields the light transmission channel P2 by a small second deformation V2.
In summary, the optical key and the optical keyboard of the present invention utilize the movable adjusting member to change the width of the optical transmission channel, thereby changing the position of the trigger point of the pressing stroke. The optical key with a wider optical transmission channel provides a long-range working depth, namely the optical key generates a trigger signal when being pressed to a deeper stroke; the optical key with a narrower optical transmission channel provides a short-range working depth, and a trigger signal can be generated by slightly pressing the optical key. In the above embodiment, the elastic arm component shields the optical transmission channel to generate the trigger signal, however, the elastic arm component can also be used to remove the optical transmission channel, so that the optical receiver can receive the optical signal of the optical transmitter as the generation mechanism of the trigger signal. In various embodiments, the conditioning element may be placed above or below the base plate; the adjusting piece arranged above the bottom plate is controlled by the actuating plate below the bottom plate to switch the position, and the stopping part is penetrated through the bottom plate by the adjusting piece arranged below the bottom plate to shield or be far away from the light transmission channel. Compared with the prior art, the optical key and the triggering mode of the optical keyboard can be quickly switched by the translation of the adjusting piece, so that the complicated steps of dismantling old keys and replacing new keys are omitted, and the structural stability and the operation convenience of the product are improved.
The above detailed description of the preferred embodiments is intended to more clearly illustrate the features and spirit of the present invention, and is not intended to limit the scope of the present invention by the preferred embodiments disclosed above. On the contrary, it is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims. The scope of the invention is therefore to be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the scope of the appended claims.
Claims (10)
1. An optical key with adjustable pressing trigger point, the optical key comprising:
the bottom plate comprises a light emitter and a light receiver, and a light transmission channel is formed between the light emitter and the light receiver;
the supporting seat is arranged on the bottom plate and is provided with an elastic arm component, and the elastic arm component enters or exits the optical transmission channel to generate a trigger signal;
the sleeve part is movably arranged in the supporting seat, and the elastic arm component generates bending deformation along with the movement of the sleeve part; and
the adjusting piece is movably arranged on the bottom plate and is provided with a stopping part, and the stopping part can move relative to the optical transmission channel and is positioned at a first position or a second position so as to be matched with the elastic arm component to shield the optical transmission channel;
the elastic arm assembly shields the optical transmission channel through a first deformation amount to generate the trigger signal when the adjusting piece is located at the first position, and shields the optical transmission channel through a second deformation amount to generate the trigger signal when the adjusting piece is located at the second position, wherein the first deformation amount is different from the second deformation amount.
2. The optical key of claim 1, wherein: the adjusting piece is arranged above the bottom plate and is also provided with an extending part, the extending part penetrates through the first broken hole of the bottom plate, and the extending part is pushed to pull the stopping part to be switched to the first position or the second position.
3. The optical key of claim 2, wherein: the optical key further comprises an actuating plate, the actuating plate is movably arranged below the bottom plate, the extending portion is embedded in the positioning hole of the actuating plate, and the pushing force is applied to the extending portion when the actuating plate moves.
4. The optical key of claim 1, wherein: the adjusting piece is arranged below the bottom plate and is also provided with a bridging part, the bridging part penetrates through the second broken hole of the bottom plate to support the stopping part, and the bridging part is pushed to pull the stopping part to be switched to the first position or the second position.
5. The optical key of claim 1, wherein: the width of the optical transmission channel changes with the movement of the stopper.
6. The optical key of claim 1, wherein: the sleeve member includes a pushing portion, and the pushing portion pushes the elastic arm assembly to generate the bending deformation along with the movement of the sleeve member.
7. The optical key of claim 1, wherein: the optical key further comprises a reset component, the reset component is arranged between the bottom plate and the sleeve piece, and the elastic restoring force of the reset component drives the sleeve piece to move relative to the bottom plate.
8. The optical key of claim 1, wherein: the optical key further comprises a key cap, wherein the key cap is arranged on the sleeve piece, and the sleeve piece moves along with the key cap when the key cap is pressed, so that the elastic arm component generates the bending deformation.
9. The optical key of claim 1, wherein: the supporting seat comprises an upper supporting part and a lower supporting part which are clamped with each other, the lower supporting part is arranged on the bottom plate and supports the upper supporting part, and the sleeve part is slidably arranged between the upper supporting part and the lower supporting part.
10. An optical keyboard capable of adjusting a press trigger point, comprising:
a plurality of optical keys, each optical key being as claimed in claims 1 to 9, the bottom plates of the plurality of optical keys being integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811438759.2A CN109599287B (en) | 2018-11-28 | 2018-11-28 | Optical key and optical keyboard capable of adjusting press trigger point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811438759.2A CN109599287B (en) | 2018-11-28 | 2018-11-28 | Optical key and optical keyboard capable of adjusting press trigger point |
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| Publication Number | Publication Date |
|---|---|
| CN109599287A CN109599287A (en) | 2019-04-09 |
| CN109599287B true CN109599287B (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811438759.2A Active CN109599287B (en) | 2018-11-28 | 2018-11-28 | Optical key and optical keyboard capable of adjusting press trigger point |
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| CN105429620A (en) * | 2015-12-18 | 2016-03-23 | 东莞市高特电子有限公司 | Modular photoelectric switch keyboard button |
| CN105428123A (en) * | 2014-09-19 | 2016-03-23 | 光宝电子(广州)有限公司 | Key structure capable of adjusting press stroke and electronic device with key structure |
| CN106568504A (en) * | 2015-10-08 | 2017-04-19 | 株式会社基恩士 | Photoelectric switch |
| CN108010775A (en) * | 2017-12-06 | 2018-05-08 | 苏州达方电子有限公司 | The key switch and its method of adjustment of adjustable pressing feel |
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2018
- 2018-11-28 CN CN201811438759.2A patent/CN109599287B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101763971A (en) * | 2009-12-22 | 2010-06-30 | 鸿富锦精密工业（深圳）有限公司 | Keyboard with adjustable key stroke and electronic device using same |
| CN105428123A (en) * | 2014-09-19 | 2016-03-23 | 光宝电子(广州)有限公司 | Key structure capable of adjusting press stroke and electronic device with key structure |
| CN104806989A (en) * | 2015-01-15 | 2015-07-29 | 广东昭信照明科技有限公司 | LED remote control lamp and remote control method |
| CN204856254U (en) * | 2015-04-24 | 2015-12-09 | 重庆康美唯外科器械有限公司 | Linear output adjustment mechanism of control signal |
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| CN109599287A (en) | 2019-04-09 |
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