CN113012965B - Push-button - Google Patents
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- CN113012965B CN113012965B CN201911324882.6A CN201911324882A CN113012965B CN 113012965 B CN113012965 B CN 113012965B CN 201911324882 A CN201911324882 A CN 201911324882A CN 113012965 B CN113012965 B CN 113012965B
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- key
- sliding end
- end portion
- keycap
- sliding
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- 238000000034 method Methods 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 23
- 230000000694 effects Effects 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Classifications
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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
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
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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
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/12—Push-buttons
- H01H3/122—Push-buttons with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor
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- Telephone Set Structure (AREA)
Abstract
The invention relates to a key, which comprises a keycap, a first supporting piece, a second supporting piece, a first stop block and a second stop block, wherein the first supporting piece and the second supporting piece are connected with the keycap in a sliding mode and are opposite to each other. The keycap moves up and down between the unpressed and pressed positions. The first stop block is formed on the keycap, the first support piece abuts against the first stop block when the keycap is located at the non-pressed position, and the first stop block is far away from the first support piece when the keycap moves downwards from the non-pressed position and is separated by a first gap. The second stop block is formed on the keycap, and the first support piece is abutted to the keycap when the keycap is located at the non-pressing position and is abutted to the second stop block when the keycap continues to move downwards to the pressing position. The invention can solve the problem that the keycap slides and deviates relative to the V-shaped support piece.
Description
Technical Field
The present invention relates to a key, and more particularly, to a key with a stopper for preventing a key cap from sliding and deviating.
Background
In terms of the current usage habit of personal computers, a keyboard is one of the indispensable input devices for inputting characters, symbols or numbers. Moreover, for example, consumer electronic products that are in contact with daily life or large processing equipment used in the industry, a key structure is required to be provided as an input device to operate the electronic products and the processing equipment.
Generally, a scissors-foot supporting structure is usually disposed between a key cap and a bottom plate to enable the key cap to move up and down relative to the bottom plate through a cross-pin joint design of supporting members, however, the above design may cause the key to require a large height space and further limit the height of the key, which is not favorable for the application of the keyboard in thinning, so a V-shaped supporting member mechanism design has been developed, which is usually designed to pivot two supporting members, which are opposite to each other and arranged in a V shape, to the bottom plate and slidably connect to the key cap so as to enable the key cap to move up and down relative to the bottom plate, but in this design, since the supporting members are slidably connected to the key cap, the user may feel the situation that the key cap slides and deviates relative to the supporting members during the key pressing process, thereby greatly affecting the pressing feeling and the use feeling of the user when pressing the key.
Disclosure of Invention
One objective of the present invention is to provide a key with a stopper to prevent the key cap from sliding and deviating, so as to solve the above problems.
According to one aspect of the present invention, the present invention provides a key, comprising:
a key cap that moves up and down between an unpressed position and a pressed position;
a first support member having a first sliding end portion, the first sliding end portion having a first involute trace, the first sliding end portion being slidably connected to the keycap such that the first sliding end portion moves along the first involute trace with movement of the keycap;
a second support member slidably coupled to the keycap, the second support member and the first support member being opposite to each other;
the first stop block is formed on the keycap and extends along the first involute track to form a first concave structure, the first sliding end part is provided with a first convex structure, and the first convex structure is abutted against the first stop block or is far away from the first concave structure to be separated by a first gap in the process that the first sliding end part moves along the first involute track; and
the second stop block is formed on the keycap and extends along the first involute track to form a second concave structure, the first sliding end part is also provided with a second convex structure, and the second convex structure is abutted against the keycap or the second concave structure in the process that the first sliding end part moves along the first involute track.
As an optional technical solution, the first stopper and the second stopper are formed on the key cap in an aligned manner and opposite to each other or in a staggered manner.
As an optional technical solution, a sliding groove is formed on the key cap, a sliding shaft is formed by the first sliding end protruding towards the sliding groove, and the sliding shaft is slidably inserted into the sliding groove to guide the first sliding end to slide.
As an optional technical solution, the first stopper is formed in the sliding groove, and the second stoppers are formed on the keycap in a manner of being aligned with the first stopper and facing each other.
As an optional technical solution, a yielding groove is formed at a position of the first support corresponding to the first stopper, the first convex structure is formed in the yielding groove, and when the keycap is located at the pressing position, the first stopper enters the yielding groove and is spaced from and opposite to the first convex structure.
As an optional technical solution, the second supporting member has a second sliding end portion, the second sliding end portion has a second involute trajectory, the second sliding end portion is slidably connected to the keycap, so that the second sliding end portion moves along the second involute trajectory along with the movement of the keycap, and the key further includes:
a third stop block formed on the keycap and extending along the second involute track to form a third concave structure, the second sliding end part is provided with a third convex structure, and the third convex structure is abutted against the third stop block or is separated from the third concave structure by a second gap in the process that the second sliding end part moves along the second involute track; and
the fourth stop block is formed on the keycap and extends along the second involute track to form a fourth concave structure, the second sliding end part is also provided with a fourth convex structure, and the fourth convex structure is abutted against the keycap or the fourth concave structure in the process that the second sliding end part moves along the second involute track.
As an optional technical solution, the key further includes a bottom plate, the first supporting member has a first pivot end portion, the second supporting member has a second pivot end portion, and the first pivot end portion and the second pivot end portion are respectively pivoted to the bottom plate, so that the keycap moves up and down between the non-pressed position and the pressed position relative to the bottom plate.
As an optional technical solution, the pivoting piece is formed on the bottom plate and has a first pivoting hole and a second pivoting hole, the first pivoting end protrudes toward the first pivoting hole to form a first pivot, the second pivoting end protrudes toward the second pivoting hole to form a second pivot, the first pivot is pivotally inserted into the first pivoting hole, and the second pivot is pivotally inserted into the second pivoting hole.
As an optional technical solution, the first pivoting end is pivoted to the second pivoting end in a manner of matching with the shaft hole.
As an optional technical solution, the key cap moves up and down a key stroke relative to the non-pressed position and the pressed position; the first convex structure abuts against the first stop block when the keycap is located at the non-pressed position, and is away from the first concave structure to be separated by a first gap when the keycap moves downwards from the non-pressed position by a first distance; the second convex structure abuts against the keycap when the keycap is located at the non-pressed position, and abuts against the second concave structure when the keycap continues to move downwards for a second distance to the pressed position; the sum of the first distance and the second distance is equal to the key stroke.
According to another aspect of the present invention, the present invention further provides a key, comprising:
a base plate;
a first support member having a first sliding end portion having a first involute trajectory, the first sliding end portion being slidably connected to the base plate such that the first sliding end portion moves along the first involute trajectory relative to the base plate;
a second support member slidably coupled to the base plate, the second support member and the first support member being opposite to each other;
the first stop block is formed on the bottom plate and extends along the first involute track to form a first concave structure, the first sliding end part is provided with a first convex structure, and the first convex structure is abutted against the first stop block or is far away from the first concave structure to be separated by a first gap in the process that the first sliding end part moves along the first involute track; and
the second stop block is formed on the bottom plate and extends along the first involute track to form a second concave structure, the first sliding end part is also provided with a second convex structure, and the second convex structure is abutted against the bottom plate or the second concave structure in the process that the first sliding end part moves along the first involute track.
As an alternative solution, the first stopper and the second stopper are formed on the bottom plate in an aligned manner to be opposite to each other or in a staggered manner.
As an optional technical solution, a sliding groove is formed on the bottom plate, a sliding shaft is formed by the first sliding end protruding towards the sliding groove, and the sliding shaft is slidably inserted into the sliding groove to guide the first sliding end to slide.
As an alternative solution, the first stopper is formed in the sliding groove, and the second stoppers are formed on the bottom plate in a manner aligned with the first stopper and opposite to each other.
As an optional technical solution, a yielding groove is formed at a position of the first supporting member corresponding to the first stopper, the first convex structure is formed in the yielding groove, and the first stopper is spaced and opposite to the first convex structure when entering the yielding groove.
As an optional technical solution, the second supporting member has a second sliding end portion, the second sliding end portion has a second involute trajectory, the second sliding end portion is slidably connected to the bottom plate, so that the second sliding end portion moves along the second involute trajectory, and the key further includes:
a third stopper formed on the bottom plate and extending along the second involute trajectory to form a third concave structure, the second sliding end portion having a third convex structure, the third convex structure abutting against the third stopper or being separated from the third concave structure by a second gap in the process that the second sliding end portion moves along the second involute trajectory; and
and the fourth stop block is formed on the bottom plate and extends along the second involute track to form a fourth concave structure, the second sliding end part also has a fourth convex structure, and the fourth convex structure is abutted against the bottom plate or the fourth concave structure in the process that the second sliding end part moves along the second involute track.
As an optional technical solution, the key further includes a key cap, the first supporting member has a first pivot end portion, the second supporting member has a second pivot end portion, and the first pivot end portion and the second pivot end portion are respectively pivoted to the key cap, so that the key cap moves up and down between an unpressed position and a pressed position relative to the base plate.
As an optional technical scheme, the keycap moves up and down by a key stroke relative to the unpressed position and the pressed position; the first convex structure abuts against the first stop block when the keycap is located at the non-pressed position, and is away from the first concave structure to be separated by a first gap when the keycap moves downwards for a first distance from the non-pressed position; the second convex structure abuts against the bottom plate when the keycap is located at the non-pressed position, and abuts against the second concave structure when the keycap continues to move downwards for a second distance to the pressed position; the sum of the first distance and the second distance is equal to the key stroke.
In summary, the present invention effectively solves the problem of the prior art that the design of slidably connecting two supporting members arranged in a V-shape to the key cap causes the sliding deviation of the key cap with respect to the supporting member, so as to greatly improve the pressing feel and the use feeling of the user when pressing the key, by the structural concave-convex matching design between the concave structures (i.e. the first concave structure and the second concave structure, or the third concave structure and the fourth concave structure) formed by the stoppers (i.e. the first stopper and the second stopper, or the third stopper and the fourth stopper) extending along the involute trajectory of the supporting member (i.e. the first supporting member or the second supporting member) and the convex structures (i.e. the first convex structure and the second convex structure, or the third concave structure and the fourth concave structure) on the supporting member.
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 a keyboard according to an embodiment of the present invention;
FIG. 2 is a partially exploded view of the key of FIG. 1;
FIG. 3 is an enlarged partial view of the key cap of FIG. 2 from another perspective;
FIG. 4 isbase:Sub>A cross-sectional view of the key of FIG. 2 along section line A-A;
FIG. 5 is a schematic cross-sectional view of the keycap of FIG. 4 moved downward a first distance;
FIG. 6 is a schematic cross-sectional view of the keycap of FIG. 5 continuing to move downward a second distance;
FIG. 7 is a partially exploded view of a keyboard according to another embodiment of the present invention;
FIG. 8 is a cross-sectional view of the key of FIG. 7 along section line B-B.
Detailed Description
The foregoing and other aspects, features and advantages of the invention will be apparent from the following more particular description of a preferred embodiment, as illustrated in the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply referred to the orientation of the attached drawings. Accordingly, the directional terminology used is intended to be illustrative and is not intended to be limiting.
Please refer to fig. 1, which is a schematic perspective view of a keyboard 10 according to an embodiment of the present invention, as shown in fig. 1, the keyboard 10 includes a plurality of keys 12 for a user to press, so as to execute a function desired by the user. The key cap shift prevention design proposed by the present invention can be applied to at least one of the plurality of keys 12, the number of which depends on the practical application of the keyboard 10, and the following description will be made for one of the keys 12 having this design, and the same can be said for other structural designs of the keys 12 having the same design.
Referring to fig. 2, fig. 3, and fig. 4, fig. 2 isbase:Sub>A partially exploded view of the key 12 in fig. 1, fig. 3 isbase:Sub>A partially enlarged view of the key cap 16 in fig. 2 from another view angle, and fig. 4 isbase:Sub>A cross-sectional view of the key 12 in fig. 2 alongbase:Sub>A sectional linebase:Sub>A-base:Sub>A. As shown in fig. 2, 3 and 4, the key 12 may preferably include a bottom plate 14 (which is an optional component in this embodiment), a key cap 16, a first support 18, a second support 20, a first stopper 22, a second stopper 24, a third stopper 26 and a fourth stopper 28.
In this embodiment, the first support 18 has a first pivot end portion 30 and a first sliding end portion 32, the first sliding end portion 32 has a first involute trace, the first sliding end portion 32 is slidably connected to the key cap 16, and the first pivot end portion 30 is pivoted to the base plate 14, so that the first sliding end portion 32 can move along the involute trace relative to the first pivot end portion 30 along with the movement of the key cap 16 (the related description of the key support pivoting along the involute trace is common in the prior art, and is not described herein again); in practical applications, as can be seen from fig. 2 and 3, the key cap 16 may have a sliding slot 34 formed thereon, and the first sliding end portion 32 protrudes toward the sliding slot 34 to form a sliding shaft 36, so that the sliding shaft 36 is slidably inserted into the sliding slot 34 to guide the sliding of the first sliding end portion 32 to be more stable; the second support member 20 has a second pivot end 38 and a second sliding end 40, the second sliding end 40 has a second involute trace, the second sliding end 40 is slidably connected to the key cap 16, and the second pivot end 38 is pivotally connected to the base plate 14, such that the second sliding end 40 can move along the involute trace relative to the second pivot end 38 along the movement of the key cap 16. In this way, by the design of the first support member 18 and the second support member 20 being opposite to each other and slidably connected to the key cap 16 and pivotally connected to the base plate 14 to form a V-shaped support mechanism, the key cap 16 can move up and down by a key stroke D (as shown in fig. 4, and the key stroke D can be preferably, but not limited to, 1.2mm or 1.6 mm) relative to the base plate 14 between the non-pressed position and the pressed position.
In addition, as shown in fig. 3 and 4, the first stopper 22 may be formed on the key cap 16 and located inside the first sliding end portion 32, the first sliding end portion 32 may have a first convex structure 42 to abut against the first stopper 22 when the key cap 16 is located at the non-pressed position, the first stopper 22 may correspondingly extend along the involute trajectory (i.e. the first involute trajectory) of the first sliding end portion 32 to form a first concave structure 44, such that the first convex structure 42 may correspondingly abut against the first stopper 22 during the movement of the first sliding end portion 32 along the involute trajectory (i.e. the first involute trajectory), or the first convex structure 42 may correspondingly be away from the first concave structure 44, in more detail, the first stopper 22 may exert a proper clearance with the first support 18 when the key cap 16 is located at the non-pressed position and with the first support 18 during the pressing of the key cap 16; on the other hand, the second stopper 24 may be formed on the key cap 16 and located outside the first sliding end portion 32 to be aligned with and opposite to the first stopper 22 (but not limited thereto, in another embodiment, the invention may adopt a stopper design in which the first stopper 22 and the second stopper 24 are arranged in a staggered manner), the first sliding end portion 32 may further have a second convex structure 46 to abut against the key cap 16 when the key cap 16 is located at the non-pressed position, the second stopper 24 may correspondingly extend along the involute trajectory of the first sliding end portion 32 to form a second concave structure 48, whereby, during the movement of the first sliding end portion 32 along the involute trajectory thereof (i.e. the first involute trajectory), the second convex structure 46 may correspondingly abut against the key cap 16 or the second concave structure 48, in more detail, by the structural concave-convex cooperation between the second convex structure 46 and the second concave structure 48 along the involute trajectory of the first sliding end portion 32, the first stopper 24 may exert the effect of separating from the first support 18 during the pressing of the key cap 16 and when the first support 18 is located at the pressed position.
In practical applications, the first supporting member 18 may have an avoiding groove 50 formed at a position corresponding to the first stopper 22, and the first convex structure 42 may be formed in the avoiding groove 50, so that when the key cap 16 is at the pressing position, the first stopper 22 can enter the avoiding groove 50 and be spaced apart from and opposite to the first convex structure 42, thereby effectively preventing the first supporting member 18 from being structurally interfered with the first stopper 22 during the pivoting process.
Similarly, the third stop 26 can be formed on the key cap 16 and located inside the second sliding end portion 40, the second sliding end portion 40 can have a third convex structure 52 to abut against the third stop 26 when the key cap 16 is located at the non-pressed position, the third stop 26 can correspondingly extend along the involute trace (i.e., the second involute trace) of the second sliding end portion 40 to form a third concave structure 54, whereby the third convex structure 52 can correspondingly abut against the third stop 26 or the third convex structure 52 can correspondingly be away from the third concave structure 54 during the movement of the second sliding end portion 40 along the involute trace (i.e., the second involute trace), in more detail, the third stop 26 can stop the second support 20 when the key cap 16 is located at the non-pressed position and can have an effect of a proper gap with the second support 20 during the pressing of the key cap 16; on the other hand, the fourth stopper 28 may be formed on the key cap 16 and located outside the second sliding end portion 40 to align with and face the third stopper 26 (but not limited thereto, in another embodiment, the invention may instead adopt a stopper design in which the third stopper 26 and the fourth stopper 28 are arranged in a staggered manner), the second sliding end portion 40 may further have a fourth convex structure 56 to abut against the key cap 16 when the key cap 16 is located at the non-pressed position, and the fourth stopper 28 may correspondingly extend along the involute trace of the second sliding end portion 40 to form a fourth concave structure 58, whereby, during the movement of the second sliding end portion 40 along the involute trace thereof (i.e. the second involute trace), the fourth convex structure 56 may correspondingly abut against the key cap 16 or the fourth concave structure 58, in more detail, through the structural concave-convex cooperation between the fourth convex structure 56 and the fourth concave structure 58 along the involute trace of the second sliding end portion 40, the fourth stopper 28 may exert the effect of separating from the second supporter 20 by a proper gap during the pressing of the second supporter 16 and when the second supporter 20 is located at the pressed position.
It should be noted that, the present invention can preferably adopt a design that the first supporting member 18 and the second supporting member 20 are respectively pivoted on the bottom plate 14 in a non-coaxial manner, but is not limited thereto, and the present invention can also adopt a design that the first supporting member 18 and the second supporting member 20 are coaxially pivoted on the bottom plate 14 (for example, the first pivoting end portion 30 is pivoted on the second pivoting end portion 38 in a shaft hole matching manner, and the related description thereof can refer to this embodiment and is not repeated herein). In this embodiment, as shown in fig. 2, the pivoting piece 60 is formed on the bottom plate 14 and has a first pivoting hole 62 and a second pivoting hole 64, the first pivoting end portion 30 protrudes toward the first pivoting hole 62 to form a first pivot 66 to be pivotally inserted into the first pivoting hole 62, and the second pivoting end portion 38 protrudes toward the second pivoting hole 64 to form a second pivot 68 to be pivotally inserted into the second pivoting hole 64, so that the first supporting member 18 and the second supporting member 20 can pivot on the bottom plate 14 respectively by taking the first pivot 66 and the second pivot 68 as rotation axes.
In addition, in practical applications, the key 12 may adopt a triggering and returning design commonly applied to the key. For example, the rubber dome body (rubber dome) may be disposed between the key cap and the key circuit board (but not limited thereto, other types of return elements, such as metal dome bodies, compression springs, etc., may also be employed in the present invention, or other common key return designs, such as a design in which a tension spring is horizontally connected between two supports of the key to provide a return tension force, may also be employed in the present invention and correspond to the trigger switch on the key circuit board, so that when the key is pressed to a pressing position by an external force, the key cap may press the rubber dome body to be flexed and deformed, so that the trigger switch is triggered by the rubber dome body, thereby performing a corresponding key input operation; on the other hand, when the external force is released, the flexed and deformed rubber dome body can provide a return elastic force to drive the keycap to return upwards to the non-pressed position, so that an automatic return effect is generated to facilitate the subsequent pressing operation of a user.
With the above design, as can be seen from fig. 4, 5, and 6, for example, when the key cap 16 is not pressed, the first convex structures 42 abut against the first stoppers 22, the second convex structures 46 and the fourth convex structures 56 abut against the key cap 16, respectively, and the third convex structures 52 abut against the third stoppers 26, so that the key cap 16 can be stably supported and positioned at the non-pressed position shown in fig. 4; next, during the process of downward movement of the key cap 16 by the first distance d1 (as shown in fig. 5) from the non-pressed position shown in fig. 4, as the key cap 16 moves downward, the first convex structure 42 is away from the first concave structure 44 by the first gap S1, and the third convex structure 52 is away from the third concave structure 54 by the second gap S2, wherein the first gap S1 and the second gap S2 may preferably be 0.5mm (but not limited thereto, the gap size thereof may be appropriately adjusted according to the practical application requirement of the keyboard 10); that is, by the design that the stopper extends along the involute trace of the supporting member (or involute trace along the sliding end) to form a concave structure, the present invention can ensure that the keycap 16 does not generate structural interference with the first supporting member 18 and the second supporting member 20 during the pressing process, thereby improving the pressing feel and smoothness of the keycap 16.
Finally, when the key cap 16 continues to move downwards by the second distance D2 (the sum of the first distance D1 and the second distance D2 may be preferably equal to the key stroke D and the ratio thereof may be preferably 1.
It should be noted that the third block and the fourth block are configured as an omitted block, and in short, in the embodiment of omitting the configuration of the third block and the fourth block, the key provided by the present invention can only use the first block and the second block to block the first supporting member to achieve the effect of limiting the sliding deviation of the key cap on one side, thereby simplifying the structural design of the key. In addition, the structural position relationship between the stoppers and the key cap sliding grooves is not limited to the above embodiments, for example, in another embodiment, the first stopper may be formed in the sliding groove of the key cap, and the second stopper may be formed on the key cap in a manner of aligning with the first stopper and opposing to each other.
In addition, the supporting configuration of the first supporting member and the second supporting member is not limited to the V-shaped supporting mechanism design mentioned in the above embodiments, and the present invention may also adopt an inverted V-shaped supporting mechanism design instead, for example, please refer to fig. 7 and fig. 8, fig. 7 is a partial exploded schematic view of a keyboard 100 according to another embodiment of the present invention, fig. 8 is a cross-sectional schematic view of a key 102 along a section line B-B in fig. 7, fig. 7 only shows a single key 102, and the description of other keys 102 having the same design on the keyboard 100 can be analogized according to this embodiment, and in addition, the elements mentioned in this embodiment and the above embodiments have the same number, which represent the same or similar structures or functions, and the related description thereof is not repeated herein. As shown in fig. 7 and 8, the keyboard 100 includes a plurality of keys 102 for being pressed by a user to execute a function desired by the user. The key 102 preferably includes a base 14, a key cap 16 (which is an optionally configurable element in this embodiment), a first support 18, a second support 20, a first stop 104, a second stop 106, a third stop 108, and a fourth stop 110. In this embodiment, the first sliding end portion 32 of the first support 18 and the second sliding end portion 40 of the second support 20 are slidably connected to the base plate 14, and the first pivoting end portion 30 of the first support 18 and the second pivoting end portion 38 of the second support 20 are pivoted to the key cap 16, so that the first sliding end portion 32 and the second sliding end portion 40 can move along respective involute tracks with the movement of the key cap 16 relative to the first pivoting end portion 30 and the second pivoting end portion 38, respectively. In this way, the keycap 16 can move up and down between the non-pressed position and the pressed position relative to the base plate 14 by the support connection design of the first support member 18 and the second support member 20 being opposite to each other and slidably connected to the base plate 14 and pivotally connected to the keycap 16 to form the inverted V-shaped support mechanism.
In addition, as shown in fig. 7 and 8, the first stop 104 may be formed on the base 14 and located inside the first sliding end portion 32, the first convex structure 42 of the first sliding end portion 32 may abut against the first stop 104 when the key cap 16 is in the non-pressed position, the first stop 104 may correspondingly extend along the involute trace (i.e., the first involute trace) of the first sliding end portion 32 to form a first concave structure 112, the second stop 106 may be formed on the base 14 and located outside the first sliding end portion 32 to be aligned with and opposite to the first stop 104, the second convex structure 46 of the first sliding end portion 32 may abut against the base 14 when the key cap 16 is in the non-pressed position, the second stop 106 may correspondingly extend along the involute trace (i.e., the first involute trace) of the first sliding end portion 32 to form a second concave structure 114, whereby, during movement of the first sliding end portion 32 along the involute trace (i.e., the first involute trace), the first convex structure 42 may correspondingly abut against the first stop 104 or the second convex structure 104 may be spaced apart from the second concave structure 112 when the first sliding end portion 32 is in the involute trace (i.e., the involute trace) and the second concave structure is pressed by the first sliding end portion 14, and the second structures 14, and the second concave structure is located along the involute trace, the second concave structure 14, the second concave structure is pressed by the second concave structure 14, and the key cap 16, the second concave structure is pressed at a gap-concave structure 14, and the second stopper 106 can play a role of separating from the first support 18 by a proper gap during the pressing process of the key cap 16 and stopping the first support 18 when the key cap 16 is at the pressing position.
Similarly, a third stop 108 may be formed on the base plate 14 inside the second sliding end portion 40, the third convex structure 52 of the second sliding end portion 40 may abut against the third stop 108 when the key cap 16 is in the non-pressed position, the third stop 108 may correspondingly be formed with a third concave structure 116 extending along the involute trace (i.e., the second involute trace) of the second sliding end portion 40, a fourth stop 110 may be formed on the base plate 14 outside the second sliding end portion 32 to be aligned with and opposite to the third stop 108, the fourth convex structure 56 of the second sliding end portion 40 may abut against the base plate 14 when the key cap 16 is in the non-pressed position, the fourth stop 110 may correspondingly be formed with a fourth concave structure 118 extending along the involute trace (i.e., the second involute trace) of the second sliding end portion 40, whereby, during the movement of the second sliding end portion 40 along the involute trace (i.e., the second involute trace), the third convex structures 52 can correspondingly abut against the third stoppers 108 or the third convex structures 52 can correspondingly be far away from the third concave structures 116, and the fourth convex structures 56 can correspondingly abut against the bottom plate 14 or the fourth concave structures 118, in more detail, by the structural concave-convex fit of the third convex structures 52 and the third concave structures 116 along the involute tracks of the second sliding end portion 40 and the structural concave-convex fit of the fourth convex structures 56 and the fourth concave structures 118 along the involute tracks of the second sliding end portion 40, the third stoppers 108 can play roles of stopping the second supports 20 when the keycap 16 is at the non-pressed position and separating from the second supports 20 by proper gaps during the pressing of the keycap 16, and the fourth stoppers 110 can play roles of separating from the second supports 20 by proper gaps during the pressing of the keycap 16 and separating from the keycap 16 by proper gaps during the pressing of the keycap 16 The effect of the second support 20 is stopped in the pressed position.
Through the above design, the key 102 provided by the present invention can effectively solve the problem of the prior art that the key cap slides and deviates relative to the supporting member due to the design that the supporting member is slidably connected to the key cap, thereby greatly improving the pressing feel and the use feeling of the user when pressing the key. For the pressing action of the key 102 and other related designs (e.g., the design that the first supporting element and the second supporting element are pivoted to the key cap in a coaxial or non-coaxial manner, the design that the third block and the fourth block are omitted, the design of the abdicating groove, the design of the block arrangement, the design of the structural position between the block and the bottom plate sliding groove, the design of the corresponding relationship between the block and the key stroke, etc.), the detailed description thereof can be analogized with reference to the above embodiments, and will not be repeated herein.
In summary, the present invention effectively solves the problem of the prior art that the design of slidably connecting two supporting members arranged in a V-shape to the key cap causes the sliding deviation of the key cap with respect to the supporting member, so as to greatly improve the pressing feel and the use feeling of the user when pressing the key, by the structural concave-convex matching design between the concave structures (i.e. the first concave structure and the second concave structure, or the third concave structure and the fourth concave structure) formed by the stoppers (i.e. the first stopper and the second stopper, or the third stopper and the fourth stopper) extending along the involute trajectory of the supporting member (i.e. the first supporting member or the second supporting member) and the convex structures (i.e. the first convex structure and the second convex structure, or the third concave structure and the fourth concave structure) on the supporting member.
The above detailed description of the preferred embodiments is intended to more clearly describe the features and spirit of the present invention, and the scope of the present invention is not limited by the above disclosed preferred embodiments. 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 (18)
1. A key, comprising:
a key cap that moves up and down between an unpressed position and a pressed position;
a first support member having a first sliding end portion having a first involute trace, the first sliding end portion slidably coupled to the keycap such that the first sliding end portion moves along the first involute trace with movement of the keycap;
a second support slidably coupled to the keycap, the second support opposing the first support;
the first stop block is formed on the keycap and extends along the first involute track to form a first concave structure, the first sliding end part is provided with a first convex structure, and the first convex structure is abutted against the first stop block or is separated from the first concave structure by a first gap in the process that the first sliding end part moves along the first involute track; and
the second stop block is formed on the keycap and extends along the first involute track to form a second concave structure, the first sliding end part is also provided with a second convex structure, and the second convex structure is abutted against the keycap or the second concave structure in the process that the first sliding end part moves along the first involute track;
and in the lifting process of the keycap, the first stop block and the second stop block limit the movement of the first support piece from opposite directions respectively.
2. The key of claim 1, wherein the first and second stops are formed on the key cap in an aligned arrangement opposite to each other or in a staggered arrangement.
3. The key of claim 1, wherein the key cap has a sliding slot formed therein, the first sliding end portion protrudes from the sliding slot to form a sliding shaft, and the sliding shaft is slidably inserted into the sliding slot to guide the sliding of the first sliding end portion.
4. The key of claim 3, wherein the first stop is formed in the sliding groove, and the second stops are formed on the key cap in alignment with the first stops and opposite to each other.
5. The key of claim 1, wherein the first supporting member has a recess corresponding to the first stopper, the first convex structure is formed in the recess, and when the key cap is at the pressing position, the first stopper enters the recess and is spaced apart from and opposite to the first convex structure.
6. The key of claim 1, wherein the second support member has a second sliding end portion, the second sliding end portion having a second involute trace, the second sliding end portion being slidably coupled to the key cap such that the second sliding end portion moves along the second involute trace with movement of the key cap, the key further comprising:
a third stop block formed on the keycap and extending along the second involute track to form a third concave structure, the second sliding end part is provided with a third convex structure, and the third convex structure is abutted against the third stop block or is separated from the third concave structure by a second gap in the process that the second sliding end part moves along the second involute track; and
the fourth stop block is formed on the keycap and extends along the second involute track to form a fourth concave structure, the second sliding end part is also provided with a fourth convex structure, and the fourth convex structure is abutted against the keycap or the fourth concave structure in the process that the second sliding end part moves along the second involute track.
7. The key of claim 1, further comprising a bottom plate, wherein the first support member has a first pivot end portion, the second support member has a second pivot end portion, and the first pivot end portion and the second pivot end portion are respectively pivoted to the bottom plate, such that the key cap moves up and down between the un-pressed position and the pressed position relative to the bottom plate.
8. The key of claim 7, wherein a pivoting piece is formed on the bottom plate and has a first pivoting hole and a second pivoting hole, the first pivoting end protrudes toward the first pivoting hole to form a first pivot, the second pivoting end protrudes toward the second pivoting hole to form a second pivot, the first pivot is pivotally inserted into the first pivoting hole, and the second pivot is pivotally inserted into the second pivoting hole.
9. The key of claim 7, wherein the first pivoting end is pivotally connected to the second pivoting end in a manner of being fitted to the shaft hole.
10. The key of claim 1, wherein the key cap moves up and down a key stroke relative to the unpressed position and the pressed position; the first convex structure abuts against the first stop block when the keycap is located at the non-pressed position, and is away from the first concave structure to be separated by a first gap when the keycap moves downwards for a first distance from the non-pressed position; the second convex structure abuts against the keycap when the keycap is located at the non-pressed position, and abuts against the second concave structure when the keycap continues to move downwards for a second distance to the pressed position; the sum of the first distance and the second distance is equal to the key stroke.
11. A key, comprising:
a base plate;
a first support member having a first sliding end portion having a first involute trajectory, the first sliding end portion being slidably connected to the base plate such that the first sliding end portion moves along the first involute trajectory relative to the base plate;
a second support member slidably coupled to the base plate, the second support member and the first support member being opposite to each other;
the first stop block is formed on the bottom plate and extends along the first involute track to form a first concave structure, the first sliding end part is provided with a first convex structure, and the first convex structure is abutted against the first stop block or is far away from the first concave structure to form a first gap in the process that the first sliding end part moves along the first involute track; and
the second stop block is formed on the bottom plate and extends along the first involute track to form a second concave structure, the first sliding end part is also provided with a second convex structure, and the second convex structure is abutted against the bottom plate or the second concave structure in the process that the first sliding end part moves along the first involute track;
wherein, in the key cap lifting process, the first stop block and the second stop block limit the movement of the first support piece from opposite directions respectively.
12. The key of claim 11, wherein the first and second stops are formed on the base in an aligned arrangement opposite to each other or in a staggered arrangement.
13. The key of claim 11, wherein the bottom plate has a sliding slot, the first sliding end portion protrudes from the sliding slot to form a sliding shaft, and the sliding shaft is slidably inserted into the sliding slot to guide the sliding of the first sliding end portion.
14. The key of claim 13, wherein the first stop is formed in the slot and the second stop is formed on the base in alignment with and opposite to the first stop.
15. The key of claim 11, wherein the first supporting member has a recess corresponding to the first stopper, the first convex structure is formed in the recess, and the first stopper is spaced apart from and opposite to the first convex structure when entering the recess.
16. The key of claim 11, wherein the second support member has a second sliding end portion, the second sliding end portion having a second involute trace, the second sliding end portion being slidably coupled to the base such that the second sliding end portion moves along the second involute trace, the key further comprising:
a third stopper formed on the bottom plate and extending along the second involute trajectory to form a third concave structure, wherein the second sliding end has a third convex structure, and the third convex structure abuts against the third stopper or is separated from the third concave structure by a second gap in the process that the second sliding end moves along the second involute trajectory; and
and the fourth stop block is formed on the bottom plate and extends along the second involute track to form a fourth concave structure, the second sliding end part also has a fourth convex structure, and the fourth convex structure is abutted against the bottom plate or the fourth concave structure in the process that the second sliding end part moves along the second involute track.
17. The key of claim 11, further comprising a key cap, wherein the first support member has a first pivot end, the second support member has a second pivot end, and the first pivot end and the second pivot end are respectively pivoted to the key cap, such that the key cap moves up and down between an unpressed position and a pressed position relative to the base plate.
18. The key of claim 17, wherein the key cap moves up and down a key stroke relative to the unpressed position and the pressed position; the first convex structure abuts against the first stop block when the keycap is located at the non-pressed position, and is away from the first concave structure to be separated by a first gap when the keycap moves downwards for a first distance from the non-pressed position; the second convex structure abuts against the bottom plate when the keycap is located at the non-pressed position, and abuts against the second concave structure when the keycap continues to move downwards for a second distance to the pressed position; the sum of the first distance and the second distance is equal to the key stroke.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393809A (en) * | 2007-09-20 | 2009-03-25 | 富士通电子零件有限公司 | Key switch and keyboard |
| CN104979123A (en) * | 2015-07-15 | 2015-10-14 | 苏州达方电子有限公司 | Key and keyboard |
| CN106128810A (en) * | 2015-05-07 | 2016-11-16 | 光宝科技股份有限公司 | Key structure and portable computer using same |
| CN110047677A (en) * | 2019-03-26 | 2019-07-23 | 苏州达方电子有限公司 | Photoswitch key |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI587337B (en) * | 2015-07-08 | 2017-06-11 | 達方電子股份有限公司 | Keyswitch and keyboard thereof |
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2019
- 2019-12-20 CN CN201911324882.6A patent/CN113012965B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393809A (en) * | 2007-09-20 | 2009-03-25 | 富士通电子零件有限公司 | Key switch and keyboard |
| CN106128810A (en) * | 2015-05-07 | 2016-11-16 | 光宝科技股份有限公司 | Key structure and portable computer using same |
| CN104979123A (en) * | 2015-07-15 | 2015-10-14 | 苏州达方电子有限公司 | Key and keyboard |
| CN110047677A (en) * | 2019-03-26 | 2019-07-23 | 苏州达方电子有限公司 | Photoswitch key |
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