TWI615865B - Key switch - Google Patents

Abstract

The invention discloses a button, comprising a bottom plate and a key cap, the bottom plate has a bottom plate hook, the key cap has a key cap hook, the key cap can move up and down relative to the bottom plate, the bottom plate hook and the key cap The hooks are engaged with each other, so that the key cap is fixed to the bottom plate via the bottom plate hook and the key cap hook. Alternatively, the button may further include a connecting component, the connecting component has a first connecting hook and a second connecting hook, the first connecting hook is engaged with the bottom hook, and the second connecting hook Fitted with the keycap hook. In this way, the key cap can be fixed to the bottom plate via the connecting member.

Description

button

The invention relates to a button, in particular to a button capable of fixing a keycap.

In terms of current personal computer usage habits, the keyboard is one of the indispensable input devices for entering text, symbols or numbers. The thin keyboard uses the magnetic attraction force as the driving force required for the keycap to replace the larger dome rubber and the scissor-foot mechanism, thereby reducing the height of the button, thereby achieving the purpose of thinning the keyboard. However, the thin keyboard with magnetic attraction as the key cap reset adopts a non-scissor mechanism, and the end point of the metal support member is difficult to pivotally connect with the conventional key cap, so how to design the connection mechanism between the key cap and the bottom plate becomes The problem that the thin keyboard needs to solve.

Accordingly, the present invention provides a thinned key having a coupling mechanism between a keycap and a bottom plate and preventing the keycap from being sprayed to solve the above problems.

In order to solve the above problems, the present invention provides a button, comprising a bottom plate, a keycap and a connecting member, the bottom plate having a bottom plate hook, the key cap having a keycap hook, the key cap being opposite to the bottom plate The connecting member is disposed between the bottom plate and the pressing portion, and the connecting member is disposed between the bottom plate and the key cap, the connecting member has a first connecting hook and a second connecting hook, the first connecting hook card The second connection hook is engaged with the bottom cover hook.

In accordance with another embodiment, the connector further includes a body, a first resilient arm, and a second resilient arm, the first resilient arm connecting the body and extending toward the first side, the second resilient arm connecting the body And extending toward the second side, wherein one end portion of the first elastic arm abuts between the bottom surface and the second end, and one end portion of the second elastic arm abuts against the bottom surface and the fourth end between.

According to another embodiment, the key pad further comprises a first and a second pad, the first pad secured to the first side, the second pad is fixed to the second side, wherein the second The end abuts the first gasket, the fourth end abuts the second gasket, and the first gasket and the second gasket have better wear resistance with respect to the keycap.

The invention further provides a button, comprising a bottom plate, a key cap and a supporting mechanism, the bottom plate has a bottom plate hook, the key cap has a keycap hook and a bottom surface, and the key cap can be released relative to the bottom plate The support mechanism is disposed between the bottom plate and the key cap. One end of the support mechanism is pivotally connected to the bottom plate, and the other end of the support mechanism abuts against the bottom surface, wherein the bottom plate The hook and the key cap hook are engaged with each other.

According to another embodiment, the key cap further has an upper surface opposite to the bottom surface, and the button further comprises a cover member affixed to the upper surface, the cover member being made of a flexible material.

In summary, the key cap of the present invention is provided with a keycap hook, and the bottom plate is provided with a bottom plate hook, and the key cap hook can be directly engaged with the bottom plate hook, so that the key cap is hooked by the keycap and the bottom card The hook is fastened to the bottom plate, and the invention can further be provided with a connecting member, which is respectively engaged with the key cap hook and the bottom plate hook, so that the key cap is fixed to the bottom plate via the connecting member. In this way, the key cap of the button of the keyboard of the present invention can be directly or indirectly fixed to the bottom plate to prevent the key cap from being sprayed away from the bottom plate by an external force when the key cap is actuated or disassembled. The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the embodiments of the invention.

The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only directions referring to the additional drawings. Therefore, the directional terminology used is for the purpose of illustration and not limitation. Referring to FIG. 1 and FIG. 2, FIG. 1 is a schematic view showing the appearance of a button 1000 according to a first embodiment of the present invention, and FIG. 2 is a schematic view showing the explosion of the button 1000 according to the first embodiment of the present invention. As shown in FIG. 1 and FIG. 2, the button 1000 includes a bottom plate 1, a keycap 2, a connecting member 3, a supporting mechanism 4, a film circuit board B, and a circuit board C. The bottom plate 1 has a bottom board card. In the hook 10, the key cap 2 has a keycap hook 20, the connecting member 3 is disposed between the bottom plate 1 and the keycap 2, and the connecting member 3 can move independently with the bottom plate 1 and the key cap 2, and the thin film circuit board B is disposed on the bottom plate. On the 1st, the switch function when the button 1000 is pressed down is provided. The circuit board C is disposed under the bottom plate 1 (ie, the film circuit board B and the circuit board C are respectively located on opposite sides of the bottom plate 1), and the circuit board C provides a driving voltage of the light source D. The light source D illuminates the light transmitting area of the keycap 2 to provide a backlight function of the button 1000. In addition, the connecting member 3 has a first connecting hook 30 and a second connecting hook 31. The first connecting hook 30 is engaged with the bottom hook 10, and the second connecting hook 31 is engaged with the key hook 20 Therefore, the key top 2 of the button 1000 can be fixed to the base plate 1 via the connecting member 3.

Referring to FIG. 1 to FIG. 4, FIG. 3 is a schematic view showing the button 1000 in a released state according to the first embodiment of the present invention, and FIG. 4 is a schematic view showing the button 1000 in a pressed state according to the first embodiment of the present invention. As shown in FIG. 1 to FIG. 4 , the key cap 2 further has a bottom surface 21 facing the bottom plate 1 . The support mechanism 4 is disposed between the bottom plate 1 and the key cap 2 , and one end of the support mechanism 4 is pivotally connected to the bottom plate 1 and supported. The other end of the mechanism 4 is indirectly abutted against the bottom surface 21 of the keycap 2 via the connecting member 3. In this embodiment, the button 1000 is a button on a keyboard, and the button 1000 is replaced by a magnetic force to replace the dome rubber and the scissor-leg mechanism as a power source for the reset of the keycap 2, so as to reduce the overall height of the button 1000 and realize the thin button 1000. Purpose. In other words, as shown in FIG. 2, the button 1000 further includes a first magnetic region 7, the first magnetic region 7 is disposed on the bottom plate 1, and the support mechanism 4 further includes a second magnetic region 8, and the second magnetic region 8 The position corresponds to the first magnetic zone 7. In this embodiment, the first magnetic region 7 can be a magnet element disposed on the bottom plate 1, and the second magnetic region 8 can be an extension arm of the support mechanism 4, but the first magnetic region 7 and the second magnetic region The structural design and configuration of the 8 may not be limited to the embodiment of the embodiment, and the actual situation depends on the actual situation.

When the keycap 2 is not pressed, a magnetic attraction between the second magnetic region 8 and the first magnetic region 7 maintains the keycap 2 in a release position as shown in FIG. 3; when the keycap 2 is When the external force is pressed and moved toward the bottom plate 1, it causes the second magnetic region 8 to be away from the first magnetic region 7, and the key cap 2 can be moved to the support structure 4 from the unpressed position as shown in FIG. 3 to a pressing position as shown in FIG. 4; when the external force pressing the keycap 2 is released, the magnetic attraction between the second magnetic region 8 and the first magnetic region 7 can cause the first magnetic region 7 and the second magnetic region The zone 8 is brought close so that the keycap 2 is moved back to the unpressed position by the pressing position with the support structure 4. In this way, the key cap 2 can move up and down relative to the bottom plate 1 between the release position and the pressing position.

In this embodiment, the connecting member 3 further includes a body 32, a first elastic arm 33 and a second elastic arm 34. The first elastic arm 33 and the second elastic arm 34 are respectively connected to the body 32 and are located opposite to the body 32. On both sides, the bottom surface 21 of the keycap 2 has an opposite first side 210 and a second side 211. The first elastic arm 33 extends toward the first side 210, and the second elastic arm 34 extends toward the second side 211. In addition, the support mechanism 4 has a first support member 40 and a second support member 41. The first support member 40 has a first end 401 and a second end 402, and the second support member 41 has a third portion. The end 410 and the fourth end 411 are pivotally connected to the bottom plate 1 . In this embodiment, the first end 401 and the third end 410 are rotatably engaged with the bottom plate hook 10, respectively. When the key cap 2 is pressed to the pressing position as shown in FIG. 4, the first The support member 40 and the second support member 41 can be folded on the bottom plate 1.

As shown in FIG. 3, one end portion of the first elastic arm 33 abuts between the bottom surface 21 of the keycap 2 and the second end 402 of the first support member 40, so that the second end 402 of the first support member 40 The first end 210 of the second elastic arm 34 abuts against the bottom surface 21 of the keycap 2 and the fourth end 411 of the second support member 41 through the first end 210 of the second elastic arm 33. The fourth end 411 of the second support member 41 is indirectly abutted against the second side 211 of the bottom surface 21 via one end portion of the second elastic arm 34. In this embodiment, the first support member 40 and the second support member 41 of the support mechanism 4 are made of a metal material, and the key cap 2 and the connector member 3 can respectively select a suitable plastic material according to the function, and be a key. When the cap 2 moves up and down, in order to prevent the metal first support member 40 and the second support member 41 from directly colliding with the connecting member 3 to generate dust, the plastic material of the connecting member 3 is made compared to the plastic material for the key cap 2 The material has better wear resistance. For example, the key cap 2 can be made of Acrylonitrile butadiene styrene (ABS), and the connecting member 3 can be made of polyacetal (POM). In other words, the present invention utilizes the two ends of the connecting member 3 made of plastic steel to be interposed between the keycap 2 and the supporting mechanism 4 to prevent the key cap 2 from directly contacting the supporting mechanism 4 and gradually being generated during the operation. abrasion.

As shown in FIG. 1 to FIG. 4, the bottom plate hook 10 of the bottom plate 1 is composed of one of the first hooks 101 and one second hook 102, and the first connecting hook 30 of the connecting member 3 is oriented. The third hook 301 and the fourth hook 302 are formed by the third hook 301 and the second hook 311 of the connecting member 3, and the button is formed by the fifth hook 310 and the sixth hook 311. The keycap hook 20 of the cap 2 is composed of an outward seventh hook 201 and an eighth hook 202. It is worth mentioning that the button 1000 has a central axis L (as shown in FIG. 3), which is substantially located between the seventh hook 201 and the eighth hook 202, the first hook 101 and the second card. The hooks 102 all protrude toward the central axis L to form an inward configuration, and the third hook 301 and the fourth hook 302 both protrude toward the center axis L to form an outward configuration; similarly, the fifth hook Both the 310 and the sixth hooks 311 protrude toward the central axis L to form an inward configuration, and the seventh hook 201 and the eighth hook 202 both protrude in a direction away from the central axis L to form an outward arrangement. The bottom plate hook 10 of the bottom plate 1 can prevent the second connecting hook 31 of the connecting member 3 from being deformed outward, so that the connecting member 3 and the key cap hook 20 are surely engaged. In addition, the third hook 301 and the fourth hook 302 are located between the first hook 101 and the second hook 102, and the seventh hook 201 and the eighth hook 202 are located at the fifth The hook 310 is between the hook 311 and the sixth hook 311.

Furthermore, the third hook 301 and the fifth hook 310 are located on the same side of the connecting member 3, and the third hook 301 and the third hook 310 are integrally formed with the connecting member 3; the fourth hook 302 is The sixth hook 311 is located on the same side of the connecting member 3, and the fourth hook 302 and the sixth hook 311 are integrally formed with the connecting member 3 in practice. During the assembly process, the key cap 2 is pressed down toward the connecting member 3, and the seventh hook 201 and the eighth hook 202 are pressed down with the keycap 2 into the fifth hook 310 and the sixth card, respectively. Hook 311. The fifth hook 310 and the sixth hook 311 respectively have a slope 312 on the side facing the keycap 2, and the slope 312 helps the seventh hook 201 and the eighth hook 202 pass the fifth hook 310 during assembly. And the sixth hook 311, so that the seventh hook 201 and the eighth hook 202 can be smoothly pressed down into the fifth hook 310 and the sixth hook 311, respectively. In addition, the slope 312 may be a slope having an arc shape.

As shown in FIG. 3 and FIG. 4, the third hook 301 has a first surface S1, the first hook 101 has a second surface S2, and the seventh hook 201 has a third surface S3, a fifth card. The hook 310 has a fourth surface S4. When the keycap 2 is in the release position as shown in FIG. 3, the first surface S1 contacts the second surface S2 and the third surface S3 contacts the fourth surface S4, when the keycap 2 When in the pressed position as shown in Fig. 4, the first surface S1 leaves the second surface S2 and the third surface S3 leaves the fourth surface S4. In other words, the connecting member 3 can be moved relative to the key cap 2 and the bottom plate 1 respectively, so that during the pressing process of the key cap 2, the connecting member 3 will first move with the key cap 2, so that the third hook 301 of the connecting member 3 is removed. Opening the first hook 101 of the bottom plate 1 (ie, the first surface S1 leaves the second surface S2) until the connecting member 3 stops at the bottom plate 1, and the key cap 2 continues to move toward the bottom plate 1, at this time, the key cap 2 The seventh hook 201 will disengage the connector 3 and the fifth hook 310 (ie, the third surface S3 leaves the fourth surface S4). In this way, the pressing stroke of the keycap 2 can be increased to meet the actual demand.

Please refer to FIG. 5 and FIG. 6. FIG. 5 is a schematic diagram of the appearance of a button 2000 according to a second embodiment of the present invention. FIG. 6 is a cross-sectional view of the button 2000 according to the second embodiment of the present invention. As shown in FIG. 5 and FIG. 6, the main difference between the button 2000 and the button 1000 is that a connector 3' of the button 2000 does not have the first elastic arm 33 and the second elastic arm 34 of the button 1000. The second end 402 of the first support 40 of the support mechanism 4 of the button 2000 abuts the first side 210, and the fourth end 411 of the second support 41 of the support mechanism 4 abuts the second side 211. Further, key 2000 may be selectively mounted a first and a second shim washer 5 6, the first pad 5 is fixed to the first side 210 of the bottom surface 21 of the key top 2, the pad 6 is fixed to the second The second side 211 of the bottom surface 21 of the keycap 2, the second end 402 of the first support 40 of the support mechanism 4 of the button 2000 abuts the first spacer 5, and the fourth support 41 of the support mechanism 4 is fourth. The end 411 abuts the second spacer 6. In the embodiment, the first gasket 5 and the second gasket 6 can be respectively made of a material having better wear resistance (for example, polyacetal (POM)) to prevent the keycap 2 and the support mechanism 4 from being Direct contact and wear gradually during the actuation process. The components of the embodiment having the same reference numerals as in the above embodiments have the same structural design and function principle, and are not described herein for brevity.

Please refer to FIG. 7 and FIG. 8. FIG. 7 is a partial exploded view of a button 3000 according to a third embodiment of the present invention. FIG. 8 is a cross-sectional view of the button 3000 according to the third embodiment of the present invention. As shown in FIG. 7 and FIG. 8 , the main difference between the button 3000 and the button 1000 described above is that the button 3000 has no connection member 3 of the button 1000, and the bottom plate hook 10 of the bottom plate 1 of the button 3000 is connected to the button 3000. The keycap hooks 20 of the keycap 2' are engaged with each other, and the keycap hooks 20 of the button 3000 can be disengaged from the bottom plate hook 10 so that the keycap 2' can be located at a pressing position. In addition, the button 3000 further includes a cover member 9 having a bottom surface 21 and an upper surface 22, the bottom surface 21 and the upper surface 22 are opposite to each other, and the cover member 9 is fixed to the upper surface 22 in an adhesive manner and Made of flexible material to prevent foreign matter from entering the underside of the keycap 2 and affecting the actuation of the button 3000. In addition, the key cap 2' of the button 3000 can be made of a material having better wear resistance (for example, a polyacetal (POM)) to prevent the keycap 2' and the support mechanism 4 from being generated during the actuation process. abrasion. In this embodiment, the flexible material may be leather, cloth or rubber.

It is worth mentioning that the keycap 2' is formed with a retaining hole 23 corresponding to the bottom plate hook 10, so when the keycap 2' is moved to the corresponding pressing position, the bottom plate hook 10 can be accommodated in the retaining hole 23. In order to prevent the keycap 2' from interfering with the bottom plate hook 10 during pressing, the keycap 2' can be smoothly moved to the corresponding pressing position. The components of the embodiment having the same reference numerals as in the above embodiments have the same structural design and function principle, and are not described herein for brevity.

Referring to FIG. 9 and FIG. 10, FIG. 9 is a schematic exploded view of a button 4000 according to a fourth embodiment of the present invention, and FIG. 10 is a cross-sectional view of the button 4000 according to the fourth embodiment of the present invention. As shown in FIG. 9 and FIG. 10 , the main difference between the button 4000 and the button 1000 described above is that the first elastic arm 33 and the second elastic arm 34 of the connecting member 3 ′ of the button 4000 are disposed on the first supporting member 40 . And the outer side of the second support member 41, a large gap is formed between the keycap 2 and the support member 3" to reduce the distance between the upper and lower movements of the keycap 2 due to the thickness of the elastic arm. The components of the embodiment having the same reference numerals as in the above embodiments have the same structural design and operation principle, and are not described herein for brevity. Compared with the prior art, the key cap of the present invention is provided with a key cap hook, and the bottom plate is provided with a bottom plate hook, and the key cap hook can be directly engaged with the bottom plate hook, so that the key cap is hooked by the key cap and the bottom plate The hook of the hook is fixed to the bottom plate, and the invention can further be provided with a connecting member, which is respectively engaged with the key cap hook and the bottom hook, so that the key cap is fixed to the bottom plate via the connecting member. In this way, the key cap of the button of the keyboard of the present invention can be directly or indirectly fixed to the bottom plate to prevent the key cap from being sprayed away from the bottom plate by an external force when the key cap is actuated or disassembled. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

1000, 2000, 3000, 4000‧‧‧ buttons
1‧‧‧floor
10‧‧‧Bottom card hook
101‧‧‧First card hook
S2‧‧‧ second side
102‧‧‧Second card
2, 2', 2''‧‧‧ keycaps
20‧‧‧Keycap hook
201‧‧‧ seventh card hook
S3‧‧‧ third side
202‧‧‧eighth hook
21‧‧‧ bottom
210‧‧‧ first side
211‧‧‧ second side
22‧‧‧ upper surface
23‧‧‧Replacement hole
24‧‧‧ card slot
26‧‧‧Fixed hook
3, 3', 3''‧‧‧ connectors
30‧‧‧First connection hook
301‧‧‧ third card hook
S1‧‧‧ first side
302‧‧‧fourth hook
31‧‧‧Second connection hook
310‧‧‧ fifth card hook
S4‧‧‧ fourth side
311‧‧‧ sixth card hook
312‧‧‧Slope
32‧‧‧Ontology
33‧‧‧First elastic arm
34‧‧‧Second elastic arm
4‧‧‧Support institutions
40‧‧‧First support
401‧‧‧ first end
402‧‧‧second end
41‧‧‧second support
410‧‧‧ third end
411‧‧‧ fourth end
5‧‧‧First gasket
6‧‧‧Second gasket
7‧‧‧First magnetic zone
8‧‧‧Second magnetic zone
9‧‧‧Cleaning pieces
A‧‧‧Key Cap Appearance Parts
B‧‧‧Film board
C‧‧‧Board
D‧‧‧Light source
L‧‧‧ center axis

Fig. 1 is a schematic view showing the appearance of a button according to a first embodiment of the present invention. Fig. 2 is a schematic view showing the explosion of the button of the first embodiment of the present invention. Figure 3 is a schematic view showing the button in the released state in the first embodiment of the present invention. Fig. 4 is a schematic view showing the button in a pressed state according to the first embodiment of the present invention. Fig. 5 is a schematic view showing the appearance of a button according to a second embodiment of the present invention. Figure 6 is a cross-sectional view showing the key of the second embodiment of the present invention. Figure 7 is a partial exploded view of the button of the third embodiment of the present invention. Figure 8 is a cross-sectional view showing a key of a third embodiment of the present invention. Figure 9 is a schematic exploded view of a button according to a fourth embodiment of the present invention. Figure 10 is a cross-sectional view showing a key of a fourth embodiment of the present invention.

1000‧‧‧ button

1‧‧‧floor

10‧‧‧Bottom card hook

101‧‧‧First card hook

S2‧‧‧ second side

102‧‧‧Second card

2‧‧‧Key Cap

20‧‧‧Keycap hook

201‧‧‧ seventh card hook

S3‧‧‧ third side

202‧‧‧eighth hook

21‧‧‧ bottom

210‧‧‧ first side

211‧‧‧ second side

3‧‧‧Connecting parts

30‧‧‧First connection hook

301‧‧‧ third card hook

S1‧‧‧ first side

302‧‧‧fourth hook

31‧‧‧Second connection hook

310‧‧‧ fifth card hook

S4‧‧‧ fourth side

311‧‧‧ sixth card hook

312‧‧‧Slope

32‧‧‧Ontology

33‧‧‧First elastic arm

34‧‧‧Second elastic arm

4‧‧‧Support institutions

40‧‧‧First support

401‧‧‧ first end

402‧‧‧second end

41‧‧‧second support

410‧‧‧ third end

411‧‧‧ fourth end

B‧‧‧Board

C‧‧‧Insulation sheet

L‧‧‧ center axis

Claims (11)

A button includes: a bottom plate having a bottom plate hook, wherein the bottom plate hook is formed by one of the first hook and the second hook; the key cap has a keycap hook, and the key cap The bottom plate is movable up and down between a release position and a pressing position; and a connecting member is disposed between the bottom plate and the key cap, the connecting member has a first connecting hook and a second connecting hook The first connection hook is engaged with the bottom card hook, the second connection hook is engaged with the key cap hook, and the first connection hook is outwardly provided by a third card hook and a fourth card The second connecting hook is composed of an inward fifth hook and a sixth hook, and the key cap hook is outwardly provided by a seventh hook and an eighth hook. Composition. The button of claim 1, wherein the key cap further has a bottom surface, and the button further comprises: a supporting mechanism disposed between the bottom plate and the key cap, one end of the supporting mechanism is pivotally connected to the bottom plate, The other end of the support mechanism abuts directly or indirectly to the bottom surface. The button of claim 1, wherein the third hook and the fifth hook are integrally formed on the same side of the connecting member, and the fourth hook and the sixth hook are located on the same side of the connecting member. And integrated. The button of claim 1, wherein the fifth hook and the sixth hook respectively have a slope. The button of claim 4, wherein the seventh hook and the eighth hook are pressed into the fifth hook and the sixth hook respectively during the assembly process. The button of claim 1, wherein the third hook has a first side, the first hook has a second side, the seventh hook has a third side, and the fifth hook has a first side a fourth side, when the keycap is in the release position, the first surface contacts the second surface and the third surface contacts the fourth surface, and when the keycap is in the pressing position, the first surface leaves the The second side and the third side exit the fourth side. The button of claim 1, wherein the third hook and the fourth hook are located between the first hook and the second hook, and the seventh hook and the eighth hook are located at the Between the fifth hook and the sixth hook. The button of claim 2, wherein the bottom surface has a first side and a second side, the support structure has a first support member and a second support member, the first support member having a first end and a second end, the second end has a third end and a fourth end, the first end and the third end are pivotally connected to the bottom plate, and the second end directly or indirectly abuts the first side And the fourth end directly or indirectly abuts the second side. The button of claim 8, wherein the connector further comprises: a body; a first resilient arm connecting the body, the first resilient arm extending toward the first side; and a second resilient arm connecting the The second elastic arm extends toward the second side; wherein one end portion of the first elastic arm abuts between the bottom surface and the second end, the second elasticity One end portion of the arm abuts between the bottom surface and the fourth end. The button of claim 8, wherein the button further comprises a first spacer and a second spacer, the first spacer is fixed to the first side, and the second spacer is fixed to the second side, The second end abuts the first gasket, the fourth end abuts the second gasket, and the first gasket and the second gasket have better wear resistance with respect to the keycap. The button of claim 2, further comprising a first magnetic region disposed on the bottom plate, the support mechanism further comprising a second magnetic region, the second magnetic region corresponding to the first magnetic region, wherein When the keycap is not pressed, a magnetic attraction between the second magnetic region and the first magnetic region maintains the keycap in the release position; when the keycap is pressed by an external force, the second magnetic region is When the first magnetic region is away, the key cap is moved from the release position to a pressing position along with the support structure; when the external force is released, the magnetic attraction causes the first magnetic region to be close to the second magnetic region, so that the The keycap moves from the pressed position back to the undepressed position with the support structure.