CN111415833B

CN111415833B - Sedimentation type keyboard device

Info

Publication number: CN111415833B
Application number: CN201910012195.4A
Authority: CN
Inventors: 李柏欣
Original assignee: Qun Optoelectronics Suzhou Co ltd
Current assignee: Qun Optoelectronics Suzhou Co ltd
Priority date: 2019-01-07
Filing date: 2019-01-07
Publication date: 2021-06-15
Anticipated expiration: 2039-01-07
Also published as: CN111415833A

Abstract

A sedimentation type keyboard device comprises a bottom plate, a first keycap, a second keycap and a sliding plate. The bottom plate has an upper surface. The first keycap is arranged on the upper surface of the bottom plate in a liftable mode and is provided with a first abutting portion. The second keycap is arranged on the upper surface of the bottom plate in a liftable mode and is provided with a second abutting part. The sliding plate is parallel to the bottom plate and moves relative to the upper surface along the sliding direction, the sliding plate is provided with a first guide piece and a second guide piece which are respectively arranged along the sliding direction, the first guide piece is provided with a first guide inclined plane, a first inclination angle is clamped between the first guide inclined plane and the upper surface, the second guide piece is provided with a second guide inclined plane, a second inclination angle is clamped between the second guide inclined plane and the upper surface, and the first inclination angle is different from the second inclination angle.

Description

Sedimentation type keyboard device

Technical Field

The present invention relates to a keyboard device, and more particularly, to a sinker type keyboard device.

Background

The keyboard is a common peripheral input device for computers at present, and is used for inputting characters or instructions. Generally, a keyboard includes a bottom plate, a plurality of keys assembled on the bottom plate, and a cover plate above the bottom plate, wherein a keycap of each key protrudes out of a surface of the cover plate for a user to press.

However, for a portable electronic product (such as a notebook computer or a tablet computer) with a keyboard, the keyboard is often folded and folded without using the keyboard, for example, for the notebook computer, the screen is covered on the keyboard for being carried out, and for the tablet computer, the keyboard can be folded or slid to the back of the touch screen to reduce the overall volume and be conveniently placed on a plane for use. However, since the key caps of the keyboard protrude out of the surface of the cover plate and are in a lifting state capable of being stressed, after the keyboard is folded, the key caps are easily worn or continuously pressed by external force, which causes troubles in use.

Disclosure of Invention

In view of the foregoing, in one embodiment, a sedimentation type keyboard apparatus is provided, which includes a bottom plate, a first keycap, a second keycap, and a sliding plate. The bottom plate has an upper surface. The first keycap is arranged on the upper surface of the bottom plate in a liftable mode and provided with a first abutting portion. The second keycap is arranged on the upper surface of the bottom plate in a liftable mode and is provided with a second abutting part. The sliding plate is arranged parallel to the bottom plate, moves relative to the upper surface along the sliding direction, and is provided with a first guide part and a second guide part, wherein the first guide part is provided with a first guide inclined surface, a first inclination angle is formed between the first guide inclined surface and the upper surface, the second guide part is provided with a second guide inclined surface, a second inclination angle is formed between the second guide inclined surface and the upper surface, and the first inclination angle is different from the second inclination angle. The sliding plate slides relative to the bottom plate along the sliding direction, the first abutting part of the first keycap abuts and slides along the first guide inclined plane firstly, so that the first keycap descends relatively and approaches the bottom plate, and then the second abutting part of the second keycap abuts and slides along the second guide inclined plane, so that the second keycap descends relatively and approaches the bottom plate.

In summary, according to the sedimentation type keyboard device of the embodiment of the invention, the first inclination angle of the first guide inclined plane of the sliding plate is different from the second inclination angle of the second guide inclined plane, so that when the sliding plate slides relative to the bottom plate along the sliding direction, the first abutting portion of the first keycap and the second abutting portion of the second keycap can abut against the first guide inclined plane and the second guide inclined plane respectively at different time points, so that the first keycap and the second keycap can descend in batches at different time points, and when the keyboard is not in use, the keycap can be sedimented downwards without protruding out of the surface of the cover plate, and the effect of saving labor can be achieved.

Drawings

FIG. 1 is a schematic diagram of an application of a sinker-type keyboard apparatus according to an embodiment of the present invention.

FIG. 2 is a partial perspective view of one embodiment of a sinker-type keyboard apparatus according to the present invention.

FIG. 3 is a partially exploded perspective view of one embodiment of a sinker-type keyboard apparatus according to the present invention.

FIG. 4 is a partially enlarged perspective view of one embodiment of a sinker-type keyboard apparatus according to the present invention.

FIG. 5 is a top view of one embodiment of a sinker type keyboard apparatus according to the present invention.

Fig. 6 is a cross-sectional view of fig. 5 taken at 6-6.

FIG. 7 is an operation diagram of a keyboard apparatus according to an embodiment of the present invention.

FIG. 8 is a sectional view of the sinker keyboard device according to an embodiment of the present invention.

FIG. 9 is a schematic diagram of a sinking operation of a sinking keyboard apparatus according to an embodiment of the present invention.

FIG. 10 is a partial enlarged top view of one embodiment of a sinker keyboard apparatus according to the invention.

FIG. 11 is an enlarged view of a portion of another embodiment of the keypad apparatus.

Wherein the reference numerals are:

1 sedimentation type keyboard device

2 notebook computer

3 cover plate

4-pivot

Region A

10 base plate

11 upper surface of the container

111 assembling structure

12 lifting connecting piece

20 first key cap

21 first butting part

211 first abutting inclined plane

30 second keycap

31 second butting part

311 second abutting inclined plane

40. 60 sliding plate

41. 61 first guide

411 first guide slope

Theta 1 first inclination angle

D1 first pitch

42. 62 second guide

421 second guiding inclined plane

Theta 2 second inclination angle

D2 second pitch

43 hollowed-out hole

44. 64 first module

45. 65 second module

50 driving device

51 translation rod

52 spring

55 linkage rod

56 first pivot part

57 second pivot joint part

58 rotating shaft part

Length D3, D4

Detailed Description

As shown in fig. 1 to 4, the sinker-type keyboard apparatus 1 of the present embodiment includes a bottom plate 10, a plurality of key caps (e.g., the plurality of first key caps 20 and the plurality of second key caps 30 in fig. 1 to 3), and a sliding plate 40. The plurality of key Caps may include a plurality of letter keys, a plurality of number keys, a Space key (Space key), an enter key (entry key), a Caps Lock key (Caps Lock key), and the like, for users to press and generate corresponding signals. As shown in fig. 1, the sinker-type keyboard device 1 of the present embodiment is a keyboard of a notebook computer 2, but the invention is not limited thereto, and the sinker-type keyboard device 1 may also be a keyboard of a general desktop computer or an external keyboard for connecting a tablet computer.

As shown in fig. 1 to 4, in the present embodiment, a plurality of key caps are disposed on the bottom plate 10 in a pressing manner, the sliding plate 40 is disposed between the plurality of key caps and the bottom plate 10, and the sliding plate 40 can slide relative to the bottom plate 10 to drive the plurality of key caps to sink downward and approach the bottom plate 10, which is described in detail below.

As shown in fig. 1 to 4, the bottom plate 10 has an upper surface 11, and the upper surface 11 may be provided with a plurality of assembling structures 111 for correspondingly assembling a plurality of keycaps. In some embodiments, the base plate 10 may be a rigid plate made of metal (e.g., iron, aluminum, alloy, etc.) or plastic.

As shown in fig. 2 and fig. 3, the sinker keyboard apparatus 1 has a plurality of rows of keycaps, for example, but not limiting the invention, a plurality of first keycaps 20 may be arranged on the bottom plate 10 along a direction (e.g., the X-axis direction of fig. 2), a plurality of second keycaps 30 may also be arranged on the bottom plate 10 along the same direction (e.g., the X-axis direction of fig. 2) to form two rows of keycaps arranged side by side, for example, but not limited to, in some embodiments, the plurality of first keycaps 20 and the plurality of second keycaps 30 may also be arranged along other directions (e.g., the Y-axis direction), or the plurality of first keycaps 20 and the plurality of second keycaps 30 may be arranged alternately, or the plurality of first keycaps 20 and the plurality of second keycaps 30 may also be arranged in different regions, for example, the plurality of first keycaps 20 may be arranged in a concentrated manner in the left half region of the sinker keyboard apparatus 1, the plurality of second key caps 30 may be collectively disposed in the right half area of the sinker-type keyboard apparatus 1, or the plurality of first key caps 20 and the plurality of second key caps 30 may be arranged in an irregular manner.

In addition, as shown in fig. 2 and fig. 3, each of the first keycaps 20 and each of the second keycaps 30 are assembled on the upper surface 11 of the base plate 10 in a liftable manner, for example, each of the assembling structures 111 of the upper surface 11 of the base plate 10 may be a hook, a plurality of lifting links 12 (please refer to fig. 6) may be disposed between each of the first keycaps 20 and each of the second keycaps 30 and the base plate 10, and each of the lifting links 12 is a scissors link (Scissor). The bottom of each lifting link 12 can be pivoted to each assembly structure 111, and the top of each lifting link 12 is pivoted to the bottom of each first key cap 20 and each second key cap 30, so that each first key cap 20 and each second key cap 30 can be lifted and lowered relative to the base plate 10 by being guided by the lifting link 12 when pressed, but the lifting link 12 is not limited thereto, and the lifting link 12 can be other structures, such as a mechanical switch or a butterfly link.

As shown in fig. 2, fig. 3 and fig. 5, each first key cap 20 is provided with at least one first abutting portion 21, and each second key cap 30 is also provided with at least one second abutting portion 31. In this embodiment, two opposite sides of the first key cap 20 are respectively provided with a first abutting portion 21, two same sides of the second key cap 30 and the first key cap 20 are also respectively provided with a second abutting portion 31, each first abutting portion 21 and each second abutting portion 31 of this embodiment can be respectively a tongue piece extending from the first key cap 20 and the second key cap 30, and each first abutting portion 21 and each second abutting portion 31 extend in the same axial direction (here, the X-axis direction), but this is not limited.

As shown in fig. 2 to 6, the sliding plate 40 is disposed parallel to the bottom plate 10, for example, in the present embodiment, the sliding plate 40 is disposed between the bottom plate 10 and the plurality of key caps and stacked on the upper surface 11 of the bottom plate 10, the sliding plate 40 is movable relative to the upper surface 11 along a sliding direction, and the sliding plate 40 includes a first guide 41 and a second guide 42 respectively disposed along the sliding direction.

As shown in fig. 2 to fig. 6, wherein fig. 4 is a partial enlarged view of the area a of fig. 3, in the present embodiment, the sliding plate 40 may be provided with a plurality of hollow holes 43 to expose a plurality of assembling structures 111 on the bottom plate 10, so that the plurality of assembling structures 111 may be assembled with the lifting links 12 of each first key cap 20 and each second key cap 30, wherein the sliding direction of the sliding plate 40 is perpendicular to the direction in which each first abutting portion 21 and each second abutting portion 31 are disposed, for example, in the present embodiment, each first abutting portion 21 and each second abutting portion 31 extend toward the X-axis direction, and the sliding plate 40 may move along the Y-axis direction (i.e., the sliding direction) relative to the upper surface 11. In addition, in the embodiment, the top surface of the sliding plate 40 is provided with a plurality of first modules 44, each first module 44 is disposed between two adjacent first keycaps 20, each first module 44 has two first guiding members 41 and is located at two opposite sides of the first module 44, the two first guiding members 41 respectively correspond to two first abutting portions 21 between two adjacent first keycaps 20, each first guiding member 41 is disposed along the sliding direction (here, the Y-axis direction) of the sliding plate 40, one end of each first guiding member 41 close to the first abutting portion 21 has a first guiding inclined surface 411, and the first guiding inclined surface 411 and the upper surface 11 have a first inclination angle θ 1. The top surface of the sliding plate 40 is provided with a plurality of second modules 45, each second module 45 is disposed between two adjacent second keycaps 30, each second module 45 has two second guiding members 42 and is located at opposite sides of the second module 45, the two second guiding members 42 respectively correspond to two second abutting portions 31 between two adjacent second keycaps 30, each second guiding member 42 is also disposed along the sliding direction (here, the Y-axis direction) of the sliding plate 40, one end of each second guiding member 42 close to the second abutting portion 31 has a second guiding inclined surface 421, and the second guiding inclined surface 421 and the upper surface 11 form a second inclined angle θ 2. In addition, the first inclination angle θ 1 of each first guiding slope 411 is different from the second inclination angle θ 2 of each second guiding slope 421, for example, the first inclination angle θ 1 may be greater than or less than the second inclination angle θ 2.

Therefore, through the first inclination angle θ 1 of the first guide inclined plane 411 of each first guide 41 of the sliding plate 40 being different from the second inclination angle θ 2 of the second guide inclined plane 421 of each second guide 42, when the sliding plate 40 slides along the sliding direction relative to the bottom plate 10, the first abutting portion 21 of each first key cap 20 and the second abutting portion 31 of each second key cap 30 can abut against the first guide inclined plane 411 and the second guide inclined plane 421 at different time points, respectively, so that the first key cap 20 and the second key cap 30 relatively descend to approach the bottom plate 10 at different time points, which is described below with reference to the drawings.

As shown in fig. 5 and 6, in the present embodiment, the first inclination angle θ 1 of the first guiding inclined surface 411 of each first guiding member 41 is 45 °, the second inclination angle θ 2 of the second guiding inclined surface 421 of each second guiding member 42 is 57 °, and when the key caps (such as the first key cap 20 and the second key cap 30) of the sedimentation type keyboard apparatus 1 are not pressed, the elastic components (such as elastic rubber or elastic sheet, not shown in the drawings) arranged below the key caps are elastically supported upwards, so that the key caps are exposed out of the cover plate 3 (please refer to fig. 1 and 6) for the user to press. As shown in fig. 7 and 8, when the sliding plate 40 slides along a first direction (as shown by arrow L1) relative to the bottom plate 10, each first guiding element 41 approaches each first abutting portion 21 of each first key cap 20, and each second guiding element 42 approaches each second abutting portion 31 of each second key cap 30. Since the first inclined angle θ 1 of the first guiding inclined surface 411 of each first guiding member 41 is smaller than the second inclined angle θ 2 of the second guiding inclined surface 421 of each second guiding member 42, please refer to fig. 8 and 9, the first guiding inclined surface 411 contacts the first abutting portion 21 of each first key cap 20 first, so that the first abutting portion 21 abuts and slides along the first guiding inclined surface 411 first, and further each first key cap 20 is pressed to descend and approach the bottom plate 10, at this time, the sliding plate 40 only receives the reaction force of the upward abutment of each first key cap 20. When the sliding plate 40 continues to move in the first direction (as shown by arrow L1), the second abutting portion 31 of each second key cap 30 abuts and slides along the second guiding inclined plane 421, so that each second key cap 30 is pressed to relatively descend and approach the bottom plate 10, and at this time, since each first key cap 20 descends first and the reaction force is greatly reduced, the main reaction force of the sliding plate 40 is changed to come from each second key cap 30. Therefore, when the sedimentation type keyboard device 1 is not needed to be used, the key caps can be downwards sedimented without protruding out of the surface of the cover plate 3, and the situation that the key caps are easily worn by external force or pressed by mistake is avoided. The first abutting portion 21 of each first key cap 20 and the second abutting portion 31 of each second key cap 30 can abut against the first guiding inclined surface 411 and the second guiding inclined surface 421 at different time points, so as to disperse the reaction force applied to the sliding plate 40 during the sliding process, thereby further achieving the effect of saving labor.

As shown in fig. 6, in an embodiment, a first distance D1 exists between each first guiding element 41 and each first abutting portion 21, and a second distance D2 exists between each second guiding element 42 and each second abutting portion 31, wherein the first distance D1 may be different from the second distance D2, that is, in an implementation, the first distance D1 and the second distance D2 may be designed differently according to actual requirements, so as to further change a time point when each first keycap 20 and each second keycap 30 are pressed and lowered, for example, in the embodiment, the first distance D1 between each first guiding element 41 and each first abutting portion 21 is smaller than the second distance D2 between each second guiding element 42 and each second abutting portion 31, but this is not limited.

In an embodiment, each of the first guiding elements 41 and each of the second guiding elements 42 may be both plastic guiding elements, and the sliding plate 40 is a metal plate, for example, each of the first guiding elements 41 and each of the second guiding elements 42 may be formed on the sliding plate 40 by insert molding (insert molding), so as to prevent the keycaps (the first keycap 20 and the second keycap 30) or other members from being worn or generating noise and the like under the long-term sliding use of the sliding plate 40, thereby achieving the purpose of prolonging the service life of the sinking-type keyboard apparatus 1. In some embodiments, the first guide members 41 and the second guide members 42 may be formed on the sliding plate 40 by other processing methods, or the first guide members 41, the second guide members 42 and the sliding plate 40 may be integrally formed, which is not limited.

In some embodiments, as shown in fig. 6, 8 and 9, the first abutting portion 21 of each first key cap 20 has a first abutting inclined surface 211, and the second abutting portion 31 of each second key cap 30 has a second abutting inclined surface 311. When the sliding plate 40 slides relative to the bottom plate 10 along the first direction, the first abutting inclined surface 211 abuts against the first guiding inclined surface 411 of each first guiding member 41 correspondingly, and the second abutting inclined surface 311 abuts against the second guiding inclined surface 421 of each second guiding member 42 correspondingly, so that the contact between each first key cap 20 and each first guiding member 41 and between each second key cap 30 and each second guiding member 42 through the abutting contact of the inclined surfaces to the inclined surfaces can be greatly reduced, and the contact friction force between each other can be further reduced, thereby further saving labor.

In some embodiments, the sliding plate 40 can be manually operated to slide, or the sliding plate 40 can be connected to a driving device 50, so that the driving device 50 can drive the sliding plate 40 to slide along the sliding direction relative to the bottom plate 10. For example, as shown in fig. 3, fig. 5 and fig. 7, in the present embodiment, the driving device 50 includes a translation rod 51 and a plurality of linkage rods 55 (here, three linkage rods 55), the translation rod 51 is disposed at one side of the sliding plate 40 and can slide along the sliding direction (e.g., the Y-axis direction in the figure), each linkage rod 55 includes a first pivot portion 56, a second pivot portion 57 and a pivot portion 58 between the first pivot portion 56 and the second pivot portion 57, the pivot portion 58 of each linkage rod 55 is fixedly disposed between the sliding plate 40 and the translation rod 51, the first pivot portion 56 is pivoted to the translation rod 51, and the second pivot portion 57 is pivoted to the sliding plate 40, so that, when the translation rod 51 slides along the sliding direction (i.e., the Y-axis direction) as shown in fig. 5 and fig. 7, the sliding plate 40 can be driven to slide relatively, so that each of the first guiding members 41 and each of the second guiding members 42 are close to or far away from the first abutting portion 21 of each of the first key caps 20 and the second abutting portion 31 of each of the second key caps 30, respectively. For example, in the present embodiment, the translating bar 51 slides in a second direction (e.g. arrow L2 direction in fig. 7) opposite to the first direction to drive the first pivot portion 56 of each linking bar 55 to synchronously move in the second direction, so that each linking bar 55 rotates (clockwise in this example) around the rotating shaft portion 58 to drive the second pivot portion 57 to drive the sliding plate 40 to slide in the first direction (e.g. arrow L1 direction in fig. 7) to make each keycap sink downward. On the contrary, when the translation rod 51 slides in the direction of arrow L1, the linking rod 55 is driven to rotate (in this example, rotate counterclockwise) around the rotation shaft 58 to drive the sliding plate 40 to move in the direction of arrow L2, so that each key cap returns to the state of being operated without being pressed. In some embodiments, the two opposite sides of the sliding plate 40 may be provided with the driving devices 50, so that the sliding plate 40 can be driven to slide synchronously by the two sets of driving devices 50, thereby saving labor.

As shown in fig. 1, 5 and 6, for example, when the driving device 50 is applied to the notebook computer 2, one end of the translation rod 51 of the driving device 50 can be connected to the pivot 4 of the notebook computer 2, and during the process of covering the screen of the notebook computer 2, the rotation of the pivot 4 can drive the translation rod 51 to move toward the arrow L2, so as to drive the sliding plate 40 to slide toward the arrow L1, so that each key cap can be settled downward, and the thickness of the covered notebook computer 2 can be reduced.

Referring to fig. 7 and 10, in an embodiment, the length D3 from the first pivot portion 56 to the rotating shaft portion 58 of each linkage 55 is greater than the length D4 from the second pivot portion 57 to the rotating shaft portion 58, so that the shifting rod 51 can generate a greater moment when sliding, thereby achieving a more labor-saving effect.

As shown in fig. 3, 5 and 7, in an embodiment, each linking rod 55 is further connected to an elastic element 52, and the elastic element 52 can provide an elastic force in the sliding direction (i.e., the Y-axis direction in the present figure). For example, in the present embodiment, the elastic member 52 is a torsion spring disposed on the rotating shaft 58, one end of the torsion spring is connected to the first pivot portion 56 of each linkage 55, and the other end of the torsion spring is connected to another supporting member (e.g., the cover 3). In an embodiment, when the translation rod 51 slides in the direction of arrow L2, the elastic member 52 can be compressed to generate a reverse elastic force (i.e. the elastic force is in the direction of arrow L1), so as to prevent the first guide members 41 and the second guide members 42 of the slide plate 40 from directly impacting the first abutting portions 21 of the first key caps 20 and the second abutting portions 31 of the second key caps 30 due to an excessive force application, thereby achieving a buffering effect and prolonging the service life of the mechanism. When the translation rod 51 slides in the direction of arrow L1, the elastic force feedback generated by the elastic element 52 can help the translation rod 51 to slide to achieve the effect of saving power. Alternatively, in another embodiment, when the translation rod 51 slides in the direction of arrow Ll, the elastic member 52 may be compressed to generate an opposite elastic force (i.e. the elastic force is in the direction of arrow L2) to prevent the sliding plate 40 from hitting other components to achieve the effect of buffering and prolonging the service life of the mechanism, and when the translation rod 51 slides in the direction of arrow L2, the elastic force feedback generated by the elastic member 52 may help the translation rod 51 to slide to achieve the effect of saving power.

As shown in fig. 11, which is a partial enlarged view of another embodiment of the sinker-type keyboard apparatus of the present invention, the difference between this embodiment and the embodiment of fig. 4 is that the opposite sides of each first module 64 of the sliding plate 60 of this embodiment are provided with the first guide member 61 and the second guide member 62 having the guide slopes with different tilt angles, and the opposite sides of the second module 65 are also provided with the first guide member 61 and the second guide member 62 having the guide slopes with different tilt angles, so that when the sliding plate 40 slides relative to the bottom plate 10 along the sliding direction, the first guide member 61 and the second guide member 62 will contact the respective abutting portions (i.e., the first abutting portion 21 and the second abutting portion 31) of the two adjacent keycaps at different time points, and the two adjacent keycaps will descend in batch at different time points, thereby achieving the effect of saving labor.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A sedimentation keyboard apparatus, comprising:

a base plate having an upper surface;

the first keycap is arranged on the upper surface of the bottom plate in a lifting way and is provided with a first abutting part;

the second keycap is arranged on the upper surface of the bottom plate in a lifting way and is provided with a second abutting part; and

the sliding plate is arranged parallel to the bottom plate and moves relative to the upper surface along a sliding direction, the sliding plate is provided with a first guide part and a second guide part which are respectively arranged along the sliding direction, the first guide part is provided with a first guide inclined plane, the first guide inclined plane and the upper surface clamp a first inclination angle, the second guide part is provided with a second guide inclined plane, the second guide inclined plane and the upper surface clamp a second inclination angle, and the first inclination angle is different from the second inclination angle;

the sliding plate slides relative to the bottom plate along the sliding direction, the first abutting part of the first keycap abuts and slides along the first guide inclined plane firstly, so that the first keycap descends relatively and approaches the bottom plate, and then the second abutting part of the second keycap abuts and slides along the second guide inclined plane, so that the second keycap descends relatively and approaches the bottom plate.

2. The sedimentation keyboard apparatus of claim 1, wherein the first guide member has a first spacing from the first abutting portion, and the second guide member has a second spacing from the second abutting portion, the first spacing being different from the second spacing.

3. The sedimentation keyboard apparatus of claim 1, wherein the sliding plate is connected to a driving means, the driving means driving the sliding plate to slide relative to the bottom plate along the sliding direction.

4. The sedimentation type keyboard device according to claim 3, wherein the driving device comprises a translation bar and a linkage bar, the translation bar is disposed at one side of the sliding plate, the linkage bar comprises a first pivot portion, a second pivot portion and a rotation shaft portion between the first pivot portion and the second pivot portion, the rotation shaft portion is fixedly disposed between the sliding plate and the translation bar, the first pivot portion is pivoted to the translation bar, and the second pivot portion is pivoted to the sliding plate.

5. The sedimentation type keyboard device of claim 4, wherein the length from the first pivot part to the rotation shaft part is longer than the length from the second pivot part to the rotation shaft part.

6. The sedimentation type keyboard device of claim 4, wherein the linkage rod is further connected with an elastic member, the elastic member provides an elastic force in the sliding direction.

7. The sedimentation keyboard device of claim 6, wherein the elastic member is a torsion spring provided at the rotation shaft portion.

8. The sedimentation keyboard apparatus of claim 1, wherein the first abutting portion has a first abutting inclined surface for abutting against the first guiding inclined surface correspondingly, and the second abutting portion has a second abutting inclined surface for abutting against the second guiding inclined surface correspondingly.

9. The sedimentation keyboard apparatus of claim 1, wherein the sliding plate is a metal plate, and the first guide member and the second guide member are both a plastic guide member.

10. The sedimentation keyboard apparatus of claim 1, wherein the first keycap and the second keycap are disposed adjacent to each other, the first guide and the second guide being located between the first keycap and the second keycap.