Keycap lifting mechanism and long rectangular key structure

Abstract

The utility model discloses a keycap lifting mechanism and a long rectangular key structure. The keycap lifting mechanism is designed through a support structure so as to increase the stability of supporting a keycap. For example, the pivot pivoted between the two brackets is overlapped with the bottom holes of the brackets in the direction of the pivot shaft. Yet for example, the brackets each have a plurality of support arms extending non-parallel to the pivot axis, the ends of each support arm being connected to the base plate. For example, in a plurality of pivot joint structures between the supports, at least one pivot joint structure comprises a full-open pivot hole, and at least one pivot joint structure comprises a semi-open pivot hole. The fully-open pivot hole comprises two opposite hook parts, and the semi-open pivot hole comprises two opposite hook parts and a blind hole. The long rectangular key structure comprises a key cap and the key cap lifting mechanism. The distance from the sliding hole of one support to the long edge of the adjacent keycap is larger than the distance from the grabbing hole of the other support to the long edge of the adjacent keycap. According to the utility model, the stability of integral actuation of the key structure can be improved.

Description

Technical Field

[0001] The utility model relates to a key structure, in particular to a long rectangular key structure and a key cap lifting mechanism thereof. Background Art

[0002] As key structures become smaller, the space available for each component shrinks significantly, making it difficult to maintain the structural strength of the components, resulting in a decrease in the overall stability of the key structure. For example, the stability of the transmission between the bracket and other components (such as another bracket, keycap, or baseplate) decreases, as does the stability of the bracket supporting the keycap. For another example, after a period of use or during bracket assembly, the bracket may experience some permanent deformation, affecting the stability of the operation and even rendering the key structure unusable. Utility Model Content

[0003] In view of the problems in the prior art, the present invention aims to provide a keycap lifting mechanism for a rectangular key structure. The keycap lifting mechanism utilizes a pivot axis pivotally connected between two brackets that overlaps with the bottom holes of the brackets in the direction of the pivot axis, thereby increasing the stability of the transmission between the brackets and the base plate, thereby improving the stability of the overall operation of the key structure.

[0004] According to one embodiment of the present invention, a keycap lifting mechanism is used for a long rectangular key structure. The long rectangular key structure has a long side direction and a short side direction. The keycap lifting mechanism includes a base plate, a first bracket, and a second bracket. The base plate includes a first bottom hook and a second bottom hook. The first bracket includes a pivot hole, a first bottom shaft, and a first bottom hole formed next to the first bottom shaft. The first bottom shaft is rotatably hooked to the first bottom hook, and the first bottom hook extends into the first bottom hole. The second bracket includes a pivot shaft, a second bottom shaft, and a second bottom hole formed next to the second bottom shaft. The second bottom shaft is rotatably hooked to the second bottom hook, and the second bottom hook extends into the second bottom hole. The pivot shaft is inserted into the pivot hole to enable the first bracket and the second bracket to rotate relative to each other around a pivot axis, and the pivot axis is parallel to the long side direction. The projection of the pivot in the long side direction overlaps with the projection of the first bottom hook or the first bottom hole in the long side direction, and the projection of the pivot in the long side direction overlaps with the projection of the second bottom hook or the second bottom hole in the long side direction. In this way, the force arm from the center of the pivot hole of the first bracket (corresponding to the pivot axis) to the first bottom shaft is effectively reduced, which can increase the stability of the first bracket from the pivot hole (from the linkage of the second bracket) to the bottom plate through the first bottom shaft, and vice versa. The same is true for the second bracket. This structural configuration also helps to improve the stability of the keycaps of the long rectangular key structure supported by the first bracket and the second bracket, and also helps to suppress the occurrence of permanent deformation. Therefore, the keycap lifting mechanism can improve the stability of the overall actuation of the key structure.

[0005] Another object of the present invention is to provide a keycap lifting mechanism for a long rectangular key structure. The keycap lifting mechanism's bracket has multiple arms extending non-parallel to the pivot axis, with the free end of each arm connected to a base plate. This structural design helps improve the bracket's support and actuation stability, thereby improving the overall actuation stability of the key structure.

[0006] According to one embodiment of the present invention, a keycap lifting mechanism is provided for use with a rectangular key structure. The rectangular key structure has a long side direction and a short side direction. The keycap lifting mechanism comprises a base plate, a first bracket, and a second bracket. The first bracket comprises a first long arm and a plurality of first arms, wherein the first long arm extends parallel to the long side direction, and the plurality of first arms protrude from the first long arm non-parallel to the long side direction and are connected to the base plate. The second bracket comprises a second long arm and a plurality of second arms, wherein the second long arm extends parallel to the long side direction, and the plurality of second arms protrude from the second long arm non-parallel to the long side direction and are connected to the base plate. The first bracket and the second bracket are pivotally connected to each other about a pivot axis, wherein one of the plurality of first arms is located between two of the plurality of second arms in the long side direction, and one of the plurality of second arms is located between two of the plurality of first arms in the long side direction. Thus, both ends of the first arm of the first bracket are directly connected (i.e., one end is connected to the first long arm, and the other end is connected to the base plate), which improves the support and actuation stability of the first bracket. The same applies to the second bracket. This structural configuration also helps improve the stability of the transmission between the first and second brackets and helps prevent the occurrence of permanent deformation. Therefore, the keycap lifting mechanism can improve the stability of the overall actuation of the key structure.

[0007] As an optional technical solution, a dome hole is formed between two first arms among the multiple first arms, the bottom plate includes two first bottom hooks, the two first arms each include a first bottom shaft and a first bottom hole formed next to the first bottom shaft, the two first bottom shafts are rotatably hooked on the corresponding first bottom hooks, the two first bottom hooks extend into the corresponding first bottom holes, and the distance from the first bottom hole to the dome hole in the long side direction is greater than or equal to 0.25 times the hole diameter of the dome hole in the long side direction.

[0008] Another object of the present invention is to provide a keycap lifting mechanism for use with a rectangular key structure. The keycap lifting mechanism comprises a pivoting structure between two brackets comprising a fully open pivot hole and a semi-open pivot hole. This structural design helps to suppress permanent deformation that may be introduced during assembly of the two brackets, thereby improving the overall actuation stability of the key structure.

[0009] According to one embodiment of the present invention, a keycap lifting mechanism is used in a rectangular key structure. The rectangular key structure has a longitudinal direction and a transverse direction. The keycap lifting mechanism includes a first bracket and a second bracket. The first bracket includes a first semi-open pivot hole, a second semi-open pivot hole, and a fully open pivot hole. The fully open pivot hole is located between the first semi-open pivot hole and the second semi-open pivot hole in the longitudinal direction. The first semi-open pivot hole includes two first hooks and a first blind hole. The two first hooks are arranged oppositely to form a first gripping space, and the first blind hole is connected to the first gripping space. The second semi-open pivot hole includes two second hooks and a second blind hole. The two second hooks are arranged oppositely to form a second gripping space, and the second blind hole is connected to the second gripping space. The opening of the first blind hole is opposite to the opening of the second blind hole. The fully open pivot hole includes two third hooks. The two third hooks are arranged oppositely to form a third gripping space. The second bracket includes a first pivot, a second pivot, and an intermediate pivot. The first pivot is captured by the two first hooks in the first gripping space and extends into the first blind hole. The second pivot is captured by the two second hooks in the second gripping space and extends into the second blind hole. The intermediate pivot is captured by the two third hooks in the third gripping space, so that the second bracket and the first bracket are pivotally connected about a pivot axis parallel to the longitudinal direction. Thus, when the first bracket and the second bracket are assembled together, the pivot structure (including the first semi-open pivot hole, the second semi-open pivot hole, the fully open pivot hole, the first pivot, the second pivot, and the intermediate pivot) can effectively suppress permanent structural deformation, thereby improving the stability of the overall actuation of the key structure.

[0010] As an optional technical solution, the distance from the front end of the first hook of the two first hooks, which is closer to the base plate connection side of the first bracket, to the base plate connection side in the short side direction is 1 to 4 times the width of the first hook in the long side direction. As an optional technical solution, the first bracket is located on two opposite outer sides of the second bracket on the pivot axis. As an optional technical solution, the fully open pivot hole includes a side wall, and the two third hooks are located on one side of the side wall in the long side direction, and the side wall connects the two third hooks. As an optional technical solution, the first bracket includes a bracket body and a reinforcement member, the reinforcement member is embedded in the bracket body, the first bracket has a sliding shaft and a sliding hole formed next to the sliding shaft, the reinforcement member passes through the sliding shaft, and the first bracket is slidably and rotatably connected to the keycap of the long rectangular key structure via the sliding shaft. As an optional technical solution, the reinforcement member surrounds the sliding hole. As an optional technical solution, the first bracket has a sliding shaft and a sliding hole formed next to the sliding shaft, the second bracket has a grabbing shaft and a grabbing hole formed next to the grabbing shaft, the shaft diameter of the sliding shaft is larger than the shaft diameter of the grabbing shaft, the first bracket is slidably and rotatably connected to the keycap of the long rectangular key structure via the sliding shaft, and the second bracket is rotatably connected to the keycap of the long rectangular key structure via the grabbing shaft.

[0011] Another object of the present invention is to provide a rectangular key structure incorporating any of the aforementioned keycap lifting mechanisms, thereby improving the overall actuation stability of the key structure. Furthermore, in this rectangular key structure, the distance from the bracket's sliding hole to the long side of the keycap is greater than the distance from the bracket's gripping hole to the long side of the keycap, thereby balancing the bracket's support of the keycap and thereby improving the overall actuation stability of the key structure.

[0012] According to one embodiment of the present invention, a rectangular key structure has a long side and a short side. The rectangular key structure includes a keycap and any of the aforementioned keycap lifting mechanisms to support the keycap. The keycap has a first long side and a second long side, the first long side and the second long side being parallel to the long side direction. The keycap is supported by a first bracket and a second bracket so as to be movable up and down parallel to a vertical direction. The first bracket has a sliding shaft and a sliding hole formed adjacent to the sliding shaft, and the second bracket has a gripping shaft and a gripping hole formed adjacent to the gripping shaft. The first bracket is slidably and rotatably connected to the keycap via the sliding shaft, and the second bracket is rotatably connected to the keycap via the gripping shaft. A first distance is defined between the projection of the sliding hole in the vertical direction and the projection of the first long side in the vertical direction in the short side direction, and a second distance is defined between the projection of the gripping hole in the vertical direction and the projection of the second long side in the vertical direction in the short side direction, with the first distance being greater than the second distance. In this way, in addition to having the effects of the aforementioned keycap lifting mechanism, the long rectangular key structure also balances the support of the keycap by the first bracket and the second bracket through the distance from the sliding hole to the first long side being greater than the distance from the grab hole to the second long side, thereby improving the stability of the overall actuation of the key structure.

[0013] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. 1 is a partially exploded schematic diagram of the long rectangular key structure according to the first embodiment.

[0015] Figure 2 for Figure 1 Exploded diagram of a medium-length rectangular key structure.

[0016] Figure 3 for Figure 1 A top view of the first bracket, second bracket, and base plate of the medium-length rectangular key structure.

[0017] Figure 4 for Figure 2 Front view of the first bracket.

[0018] Figure 5 for Figure 2 Front view of the second bracket.

[0019] Figure 6 for Figure 2 An enlarged schematic diagram of the first half-open pivot hole of the first bracket at another viewing angle.

[0020] Figure 7 for Figure 2 An enlarged schematic diagram of the second half-open pivot hole of the first bracket at another viewing angle.

[0021] Figure 8 for Figure 2 FIG. 1 is an enlarged schematic diagram of another perspective of the fully open pivot hole circled by the chain loop in the first bracket.

[0022] Figure 9 for Figure 2 Exploded diagram of the first bracket.

[0023] Figure 10 for Figure 2 Explosion diagram of the second bracket.

[0024] Figure 11 FIG. 4 is a partial exploded diagram of a long rectangular key structure according to the second embodiment.

[0025] Figure 12 for Figure 11 Exploded diagram of a medium-length rectangular key structure.

[0026] Figure 13 for Figure 11 A top view of the first bracket, second bracket, and base plate of the medium-length rectangular key structure.

[0027] Figure 14 for Figure 12 Front view of the first bracket.

[0028] Figure 15 for Figure 12 Front view of the second bracket.

[0029] Figure 16 for Figure 12 An enlarged schematic diagram of the first half-open pivot hole of the first bracket at another viewing angle.

[0030] Figure 17 for Figure 12 An enlarged schematic diagram of the second half-open pivot hole of the first bracket at another viewing angle.

[0031] Figure 18 for Figure 12 FIG. 1 is an enlarged schematic diagram of another perspective of the fully open pivot hole circled by the chain loop in the first bracket.

[0032] Figure 19 for Figure 12 Explosion diagram of the first bracket.

[0033] Figure 20 for Figure 12 Explosion diagram of the second bracket.

[0034] Figure 21 for Figure 13 Left side view of the structure shown.

[0035] Figure 22 FIG. 4 is a partial exploded diagram of a long rectangular key structure according to the third embodiment.

[0036] Figure 23 for Figure 22 Exploded diagram of a medium-length rectangular key structure.

[0037] Figure 24 for Figure 22 A top view of the first bracket, second bracket, and base plate of the medium-length rectangular key structure.

[0038] Figure 25 for Figure 23 Front view of the first bracket.

[0039] Figure 26 for Figure 23 Front view of the second bracket.

[0040] Figure 27 for Figure 23 An enlarged schematic diagram of the first half-open pivot hole of the first bracket at another viewing angle.

[0041] Figure 28 for Figure 23 An enlarged schematic diagram of the second half-open pivot hole of the first bracket at another viewing angle.

[0042] Figure 29 for Figure 23 FIG. 1 is an enlarged schematic diagram of another perspective of the fully open pivot hole circled by the chain loop in the first bracket.

[0043] Figure 30 for Figure 24 Left side view of the structure shown. DETAILED DESCRIPTION

[0044] Directional terms such as "up," "down," "left," "right," "front," and "back" mentioned in the following embodiments refer only to directions in the accompanying drawings. Prefixes in component names, such as "first," "second," and so on, are used solely to distinguish components and facilitate description and do not inherently impose any limitations on the components. Furthermore, components with the same prefix across various embodiments do not necessarily correspond to each other. The correspondence between components in various embodiments depends on the specific structures described in each embodiment.

[0045] The utility model provides a keycap lifting mechanism for a long rectangular key structure. The long rectangular key structure has a long side direction and a short side direction. The keycap lifting mechanism comprises a bottom plate, a first bracket and a second bracket. The bottom plate includes a first bottom hook and a second bottom hook; the first bracket includes a pivot hole, a first bottom shaft and a first bottom hole formed next to the first bottom shaft, the first bottom shaft is rotatably hooked on the first bottom hook, and the first bottom hook extends into the first bottom hole; the second bracket includes a pivot, a second bottom shaft and a second bottom hole formed next to the second bottom shaft, the second bottom shaft is rotatably hooked on the second bottom hook, and the second bottom hook extends into the second bottom hole, the pivot is inserted into the pivot hole to enable the first bracket and the second bracket to rotate relative to each other around a pivot axis, and the pivot axis is parallel to the long side direction; wherein, the projection of the pivot axis in the long side direction overlaps with the projection of the first bottom hook or the first bottom hole in the long side direction, and the projection of the pivot axis in the long side direction overlaps with the projection of the second bottom hook or the second bottom hole in the long side direction.

[0046] The utility model also proposes a keycap lifting mechanism for a long rectangular key structure, which has a long side direction and a short side direction, and the keycap lifting mechanism includes a base plate, a first bracket and a second bracket, the first bracket including a first long arm and a plurality of first support arms, the first long arm extending parallel to the long side direction, the plurality of first support arms protruding and extending from the first long arm non-parallel to the long side direction and connected to the base plate; the second bracket includes a second long arm and a plurality of second support arms, the second long arm extending parallel to the long side direction, the plurality of second support arms protruding and extending from the second long arm non-parallel to the long side direction and connected to the base plate; wherein, the first bracket and the second bracket are pivotally connected to each other around a pivot axis, one of the plurality of first support arms is located between two of the plurality of second support arms in the long side direction, and one of the plurality of second arms is located between two of the plurality of first arms in the long side direction.

[0047] The present invention also proposes a keycap lifting mechanism for a long rectangular key structure, wherein the long rectangular key structure has a long side direction and a short side direction, and the keycap lifting mechanism includes a first bracket and a second bracket, the first bracket includes a first half-open pivot hole, a second half-open pivot hole and a fully open pivot hole, the fully open pivot hole is located between the first half-open pivot hole and the second half-open pivot hole in the long side direction, the first half-open pivot hole includes two first hooks and a first blind hole, the two first hooks are arranged relative to each other to form a first gripping space, the first blind hole is connected to the first gripping space, the second half-open pivot hole includes two second hooks and a second blind hole, the two second hooks are arranged relative to each other to form a first gripping space, Two grasping spaces, the second blind hole is connected to the second grasping space, the opening of the first blind hole is opposite to the opening of the second blind hole, the fully-open pivot hole includes two third hooks, and the two third hooks are arranged opposite to each other to form a third grasping space; the second bracket includes a first pivot, a second pivot and an intermediate pivot, the first pivot is grasped by the two first hooks in the first grasping space and extends into the first blind hole, the second pivot is grasped by the two second hooks in the second grasping space and extends into the second blind hole, and the intermediate pivot is grasped by the two third hooks in the third grasping space, so that the second bracket and the first bracket are pivotally connected to each other around a pivot axis, and the pivot axis is parallel to the long side direction.

[0048] See also Figure 1 and Figure 2. According to the first embodiment, the long rectangular key structure 1 has a long side direction D1 and a short side direction D2 (both are represented by double-headed arrows in the figure), and the long side direction D1 is perpendicular to the short side direction D2. In actual operation, the long rectangular key structure 1 can be but is not limited to a blank key. The long rectangular key structure 1 includes a keycap 10, a base plate 12, a first bracket 14, a second bracket 16, a switch circuit board 18 and an elastic protrusion 20. The keycap 10 is arranged above the base plate 12. The first bracket 14 and the second bracket 16 are pivotally connected to each other around a pivot axis A1 (represented by a chain line in the figure), and the pivot axis A1 is parallel to the long side direction D1. The first bracket 14 and the second bracket 16 are respectively connected to the keycap 10 and the base plate 12 to support the keycap 10 above the base plate 12, so that the keycap 10 can move relative to the base plate 12 via the first bracket 14 and the second bracket 16 (for example, move up and down or move parallel to a vertical direction Dv1). The vertical direction Dv1 (indicated by a double-headed arrow in the figure) is perpendicular to the long-side direction D1 and the short-side direction D2. The switch circuit board 18 is placed on the base plate 12. The switch circuit board 18 can be, but is not limited to, a thin-film circuit board, and has a switch 182 (indicated by a circle filled with diagonal lines in the figure), which roughly corresponds to the center of the keycap 10. The elastic protrusion 20 is arranged on the switch circuit board 18 corresponding to the switch 182 and is located below the keycap 10. The keycap 10 can be pressed to move toward the base plate 12, thereby squeezing the elastic protrusion 20 to trigger the switch 182 downward. Therefore, logically, the combination of the first bracket 14 and the second bracket 16, or the combination of the first bracket 14, the second bracket 16 and the base plate 12 can be regarded as a keycap lifting mechanism.

[0049] See also Figures 3 to 5 Among them, Figure 3 In FIG, the outline of the key cap 10 is shown in dotted lines. Figure 3 The first bracket 14 is a frame structure as a whole, mainly including a rectangular outer frame portion and a plurality of connecting portions connecting the two long sides of the rectangular outer frame portion (parallel to the long side direction D1) on the inner side of the rectangular outer frame portion. The first bracket 14 is connected to the keycap 10 and the base plate 12 via the two long sides of the rectangular outer frame portion. The second bracket 16 includes a long arm 162 and a plurality of support arms 164 extending from the long arm 162 non-parallel to the long side direction D1 (extending perpendicular to the long side direction D1 in the first embodiment); the ranges of the long arm 162 and the support arm 164 are indicated by dotted lines. Figure 5The second bracket 16 is connected to the keycap 10 via the long arm 162 and to the base plate 12 via (the ends of) the support arms 164. The ends of all the support arms 164 of the second bracket 16 are connected to the base plate 12. The second bracket 16 does not have any support arms 164 with free ends. Therefore, all the support arms 164 of the second bracket 16 contribute substantially to the overall structural strength of the second bracket 16. The second bracket 16 is pivotally connected to the inside of the first bracket 14. On the other hand, the first bracket 14 is located on opposite sides of the second bracket 16 along the pivot axis A1. Logically, the first bracket 14 can be considered an outer bracket, and the second bracket 16 can be considered an inner bracket.

[0050] like Figure 4 As shown, the first bracket 14 includes a pivot hole, for example, the first bracket 14 includes a first half-open pivot hole 142, a second half-open pivot hole 144 and a fully open pivot hole 146. In this embodiment, there are six fully open pivot holes 146, but this is not limited to other embodiments. The six fully open pivot holes 146 are arranged between the first half-open pivot hole 142 and the second half-open pivot hole 144 along the pivot axis A1. Please also refer to Figure 6 The first half-open pivot hole 142 includes two first hooks 1422 and a first blind hole 1424. The two first hooks 1422 and the first blind hole 1424 are adjacently arranged along the pivot axis A1. The two first hooks 1422 are disposed opposite to each other to form a first gripping space 1422a. The first gripping space 1422a is connected to the first blind hole 1424. Figure 4 and Figure 7 The second semi-open pivot hole 144 includes two second hooks 1442 and a second blind hole 1444. The two second hooks 1442 and the second blind hole 1444 are adjacently arranged along the pivot axis A1. The two second hooks 1442 are arranged opposite to each other to form a second gripping space 1442a. The second gripping space 1442a is connected to the second blind hole 1444. Figure 4 As shown, the first half open pivot hole 142 and the second half open pivot hole 144 are symmetrical in structure. Figure 4 and Figure 8 ,in Figure 8 An enlarged schematic diagram of one of the fully open pivot holes 146 is shown. This fully open pivot hole 146 includes two third hooks 1462, which are arranged opposite to each other to form a third gripping space 1462a. The other fully open pivot holes 146 have the same structure, but may face the same direction or the opposite direction (depending on the Figure 4 and judged it), I will not elaborate on it separately.

[0051] In addition, if Figure 6As shown, the distance 1422b between the front end of the first hook portion 1422, which is closer to the bottom plate connection side of the first bracket 14 (i.e., the side closer to the bottom plate 12), and the bottom plate connection side in the short direction D2 is greater than the width 1422c of the first hook portion 1422 in the long direction D1. For example, the distance 1422b is 1 to 4 times the width 1422c, but this is not limited to actual operation. This structural design helps maintain the structural strength of the first hook portion 1422 and the gripping force of the two first hook portions 1422.

[0052] like Figure 5 As shown, the second bracket 16 includes a pivot, for example, the second bracket 16 includes a first pivot 166, a second pivot 168 and an intermediate pivot 170. In this embodiment, there are six intermediate pivots 170, but this is not limited to other embodiments. The six intermediate pivots 170 are arranged between the first pivot 166 and the second pivot 168 along the pivot axis A1. Figure 3 The first pivot 166, the second pivot 168 and the six intermediate pivots 170 are connected to the first half-open pivot hole 142, the second half-open pivot hole 144 and the six fully open pivot holes 146 respectively, so that the first bracket 14 and the second bracket 16 are pivotally connected to each other around the pivot axis A1. Figure 3 As shown, the first pivot 166 is captured by the two first hooks 1422 in the first capturing space 1422a and extends into the first blind hole 1424. The second pivot 168 is captured by the two second hooks 1442 in the second capturing space 1442a and extends into the second blind hole 1444. The intermediate pivot 170 is captured by the two third hooks 1462 in the third capturing space 1462a. In the first semi-open pivot hole 142, the first pivot 166 is constrained by both the two first hooks 1422 and the first blind hole 1424. The same applies to the second semi-open pivot hole 144 and the second pivot 168. In the fully open pivot hole 146, the intermediate pivot 170 is primarily constrained by the two third hooks 1462. Therefore, in principle, the connection strength between the first half-open pivot hole 142 and the first pivot 166 (or the second half-open pivot hole 144 and the second pivot 168 ) is greater than the connection strength between the fully-open pivot hole 146 and the intermediate pivot 170 .

[0053] See also Figures 3 to 5 In the first bracket 14, a distance 145a is formed between the bottom of the first blind hole 1424 (of the first semi-open pivot hole 142) and the bottom of the second blind hole 1444 (of the second semi-open pivot hole 144) along the pivot axis A1, and a distance 145b is formed between the opening of the first blind hole 1424 and the opening of the second blind hole 1444 along the pivot axis A1; wherein, the first blind hole 1424 and the second blind hole 1444 are Figure 4The hidden outline in FIG is shown with dashed lines. In the second bracket 16, a spacing 169 is defined between the distal ends of the first pivot 166 and the distal ends of the second pivot 168 along the pivot axis A1. Spacing 169 is greater than spacing 145b and smaller than spacing 145a. During the actual assembly of the first bracket 14 and the second bracket 16, force can be applied to the second bracket 16 to slightly arch it, reducing the linear distance between the first pivot 166 and the second pivot 168 to less than the linear distance between the first and second half-open pivot holes 142 and 144. Next, the second bracket 16 is maintained arched, with the first and second pivots 166, 168 engaging the first and second half-open pivot holes 142 and 144, respectively. The second bracket 16 is then released. At this point, the intermediate pivot 170 should, in principle, contact the corresponding fully-open pivot hole 146. Next, the second bracket 16 is pressed toward the first bracket 14, causing the intermediate pivot 170 to engage with the fully open pivot hole 146. Finally, the first half-open pivot hole 142, the second half-open pivot hole 144, and the fully open pivot hole 146 are fully engaged with the first pivot 166, the second pivot 168, and the intermediate pivot 170, respectively. Furthermore, in the connection structure between the first bracket 14 and the second bracket 16, the first half-open pivot hole 142 and the second half-open pivot hole 144 are located at the outermost sides of the first bracket 14 along the pivot axis A1. Therefore, during assembly of the first and second brackets 14, 16, the second bracket 16 can be deformed minimally to allow the first and second pivots 166, 168 to engage with the first and second half-open pivot holes 142, 144. In other words, this connection structure design balances ease of assembly between the first and second brackets 14, 16 with overall connection strength between the two brackets. Furthermore, the first half-open pivot hole 142 and the second half-open pivot hole 144 being located at the outermost sides along the pivot axis A1 also help maintain the stability of the pivot connection between the first bracket 14 and the second bracket 16 .

[0054] In addition, if Figures 6 to 8 As shown, in the first embodiment, one side of the two first hooks 1422, the two second hooks 1442 or the two third hooks 1462 in the direction of the pivot axis A1 is open, and the other side has a side wall (perpendicular to the pivot axis A1; for example Figure 6 Middle side wall 1426, Figure 7 Middle side wall 1446, Figure 8 The hooks 1422, 1442, and 1462 are connected to the middle sidewall 1464. This structural design helps increase the structural strength and gripping strength of the hook itself. However, this is not a limitation in practice. For example, the two first hooks 1422, the two second hooks 1442, or the two third hooks 1462 can be modified so that both sides in the direction of the pivot axis A1 are open (i.e., without sidewall connections). This structural design increases their flexibility and facilitates assembly with the first pivot 166, the second pivot 168, and the middle pivot 170.

[0055] See also Figures 1 to 4 The first bracket 14 has a sliding shaft and a first bottom shaft. In this embodiment, the first bracket 14 has six sliding shafts 148a, 148b and six first bottom shafts 150, but this is not limited to other embodiments. The six sliding shafts 148a, 148b are arranged parallel to the pivot axis A1, with four sliding shafts 148a located between two sliding shafts 148b. The sliding shafts 148b can be formed as protrusions extending parallel to the pivot axis A1. The first bracket 14 also has a sliding hole 149 formed next to each sliding shaft 148a. The first bracket 14 is slidably and rotatably connected to the keycap 10 (the sliding hook 102) via the sliding shafts 148a, 148b, with the sliding hook 102 extending into the corresponding sliding hole 149. Furthermore, the six first bottom shafts 150 are also arranged parallel to the pivot axis A1, and the first bracket 14 also has a first bottom hole 151 formed next to each first bottom shaft 150. The first bracket 14 is rotatably connected to the base plate 12 (the first bottom hook 122) via a first bottom shaft 150. The first bottom shaft 150 is rotatably hooked to the corresponding first bottom hook 122, and the first bottom hook 122 extends into the corresponding first bottom hole 151. Furthermore, the base plate 12 includes a plurality of stoppers 123. The stoppers 123 limit the position of the first bracket 14 to ensure that the first bottom shaft 150 remains hooked to the corresponding first bottom hook 122.

[0056] See also Figures 1 to 3 and Figure 5 . The second bracket 16 has a grab shaft, and the second bracket 16 also has a second bottom shaft. In this embodiment, the second bracket 16 has 8 grab shafts 172 and 8 second bottom shafts 174, but this is not limited to other embodiments. The 8 grab shafts 172 and the 8 second bottom shafts 174 are all arranged parallel to the pivot axis A1. The 8 grab shafts 172 are set on the long arms 162, and two second bottom shafts 174 are set on each support arm 164. The second bracket 16 also has a grab hole 173 formed next to each grab shaft 172. The second bracket 16 is rotatably connected to the keycap 10 (the grab hook 104) via the grab shaft 172, wherein the grab hook 104 extends into the corresponding grab hole 173. In addition, the second bracket 16 also has a second bottom hole 175 formed next to each second bottom shaft 174. The second bracket 16 is slidably and rotatably connected to the bottom plate 12 (the second bottom hook 124) via the second bottom shaft 174, wherein the second bottom shaft 174 is slidably and rotatably hooked on the corresponding second bottom hook 124, and the second bottom hook 124 extends into the corresponding second bottom hole 175.

[0057] Also, see Figure 1 and Figure 3 The keycap 10 has a first long side 10a and a second long side 10b, and both the first long side 10a and the second long side 10b are parallel to the long side direction D1. Figure 3In the figure, the vertical direction Dv1 is perpendicular to the paper surface, so the structural outline shown in the figure is equivalent to its vertical projection on the paper surface; in addition, the outline of the keycap 10 is perpendicular to the paper surface. Figure 3 Indicated by dashed lines. In the first embodiment, a first distance L1 is defined between the projection of the sliding hole 149 of the first bracket 14 in the vertical direction Dv1 and the projection of the first long side 10a of the keycap 10 in the vertical direction Dv1, and a second distance L2 is defined between the projection of the gripping hole 173 of the second bracket 16 in the vertical direction Dv1 and the projection of the second long side 10b of the keycap 10 in the vertical direction Dv1, with the first distance L1 being greater than the second distance L2. This structural configuration provides ample space for the structure and actuation design of the sliding shaft 148a of the first bracket 14. Furthermore, the diameter of the sliding shaft 148a of the first bracket 14 is greater than the diameter of the gripping shaft 172 of the second bracket 16; this structural configuration helps enhance the rotational and sliding stability of the sliding shaft 148a.

[0058] In addition, in the first embodiment, the first bracket 14 and the second bracket 16 are both designed with structural reinforcement. Figure 4 and Figure 9 ,in Figure 9 The figure is an exploded view of the first bracket 14. The first bracket 14 includes a bracket body 140 and a reinforcement member 141, which is embedded in the bracket body 140. The reinforcement member 141 passes through the sliding shaft 148a and completely surrounds the sliding hole 149. Both of these structural features increase the structural strength of the sliding shaft 148a, thereby contributing to the stability of the sliding shaft 148a's rotation and sliding. Furthermore, the reinforcement member 141 partially surrounds the first and second semi-open pivot holes 142, 144 (surrounding three sides thereof), which helps to increase the structural strength of the first and second semi-open pivot holes 142, 144, thereby contributing to the stability of the pivotal connection between the first bracket 14 and the second bracket 16. Furthermore, the reinforcement member 141 itself has multiple bends extending parallel to the pivot axis A1. This structural feature helps to increase the structural strength of the reinforcement member 141 itself, thereby increasing the structural strength of the first bracket 14. Furthermore, in the first embodiment, although the reinforcement member 141 is not distributed throughout the entire rectangular outer frame of the first bracket 14 (for example, the reinforcement member 141 is located on both short sides or one of the two long sides of the rectangular outer frame), the reinforcement member 141 still structurally connects the two long sides of the rectangular outer frame (by passing through the connecting portion connecting the two sides on the inner side of the rectangular outer frame), so that the reinforcement member 141 can still provide a certain structural reinforcement effect on the entire rectangular outer frame. In actual operation, the reinforcement member 141 can also be designed to be located on both long sides.

[0059] Similarly, see Figure 5 and Figure 10 ,in Figure 10The figure is an exploded view of the second bracket 16. The second bracket 16 includes a bracket body 160 and a reinforcement 161. The reinforcement 161 is embedded in the bracket body 160 to enhance the structural strength of the second bracket 16. Furthermore, the reinforcement 161 itself has multiple bends, which help increase the structural strength of the reinforcement 161 itself, thereby increasing the structural strength of the second bracket 16. Furthermore, in actual operation, the bracket bodies 140 and 160 can be made of, but not limited to, plastic, and the reinforcements 141 and 161 can be made of, but not limited to, metal. Furthermore, in actual operation, it is not limited to the first bracket 14 and the second bracket 16 being structurally reinforced by the reinforcements 141 and 161.

[0060] In addition, if Figure 3 As shown, in the first embodiment, the first bracket 14 and the second bracket 16 together form a dome 22 (in which the elastic protrusion 20 is accommodated, as shown in FIG. Figure 1 For the first and second brackets 14 and 16, a dome coverage area R1 is defined along the longitudinal direction D1, bounded by the dome 22 (this area is indicated by a chain line in the figure). Within this dome coverage area R1, the first and second brackets 14 and 16 do not have any connection structures (e.g., the sliding shaft 148a / sliding hole 149, the gripping shaft 172 / gripping hole 173) that connect to the keycap 10 and base plate 12. This structural design prevents the structures of the first and second brackets 14 and 16 from being weakened by the presence of connecting structures.

[0061] See also Figure 11 and Figure 12. The long rectangular key structure 3 according to the second embodiment has a long side direction D3 and a short side direction D4 (both indicated by double-headed arrows in the figure), and the long side direction D3 is perpendicular to the short side direction D4. In actual operation, the long rectangular key structure 3 can be but is not limited to a blank key. The long rectangular key structure 3 includes a keycap 30, a base plate 32, a first bracket 34, a second bracket 36, a switch circuit board 38 and an elastic protrusion 40. The keycap 30 is arranged above the base plate 32. The first bracket 34 and the second bracket 36 are pivotally connected to each other around a pivot axis A3 (indicated by a chain line in the figure), and the pivot axis A3 is parallel to the long side direction D3. The first bracket 34 and the second bracket 36 are each respectively connected to the keycap 30 and the base plate 32 to support the keycap 30 above the base plate 32, so that the keycap 30 can move relative to the base plate 32 via the first bracket 34 and the second bracket 36 (for example, move up and down or move parallel to a vertical direction Dv3). The vertical direction Dv3 (indicated by a double-headed arrow in the figure) is perpendicular to the long-side direction D3 and the short-side direction D4. A switch circuit board 38 is placed on the base plate 32. The switch circuit board 38 may be, but is not limited to, a thin-film circuit board. It has a switch 382 (indicated by a circle filled with diagonal lines in the figure), which is approximately aligned with the center of the keycap 30. An elastic protrusion 40 is disposed on the switch circuit board 38 and below the keycap 30, corresponding to the switch 382. The keycap 30 can be pressed toward the base plate 32, thereby squeezing the elastic protrusion 40 downward to trigger the switch 382. Therefore, logically, the combination of the first bracket 34 and the second bracket 36, or the combination of the first bracket 34, the second bracket 36, and the base plate 32 can be considered a keycap lifting mechanism.

[0062] See also Figures 13 to 15 Among them, Figure 13 In FIG, the outline of the key cap 30 is shown in dotted lines. Figure 13 The first bracket 34 includes a first long arm 342 and a plurality of first support arms 344 extending from the first long arm 342 non-parallel to the long side direction D3 (extending perpendicular to the long side direction D3 in the second embodiment); the range of the first long arm 342 and the first support arms 344 are indicated by dotted lines. Figure 14 The first bracket 34 is connected to the keycap 30 via the first long arm 342, and is connected to the base plate 32 via (the end of) the first support arm 344. The second bracket 36 includes a second long arm 362 and a plurality of second support arms 364 extending from the second long arm 362 non-parallel to the longitudinal direction D3 (in the second embodiment, extending perpendicular to the longitudinal direction D3); the ranges of the second long arm 362 and the second support arms 364 are indicated by dotted lines. Figure 15The second bracket 36 is connected to the keycap 30 via the second long arm 362 and to the base plate 32 via (the end of) the second arm 364. The first bracket 34 and the second bracket 36 are pivotally connected to each other via the plurality of first arms 344 and the plurality of second arms 364. The plurality of first arms 344 and the plurality of second arms 364 are arranged in a staggered manner substantially along the pivot axis A3; the outermost arms on the pivot axis A3 are the first arms 344, and at least one of the first arms 344 is located between two second arms 364 in the longitudinal direction D3, and one of the second arms 364 is located between two first arms 344 in the longitudinal direction D3. On the other hand, the first bracket 34 extends to two opposite outer sides of the second bracket 36 on the pivot axis A3. Logically, the first bracket 34 can be considered an outer bracket, and the second bracket 36 can be considered an inner bracket. Furthermore, the ends of all first arms 344 of the first bracket 34 are connected to the base plate 32. The first bracket 34 does not have a first arm 344 with a free end. Therefore, all first arms 344 of the first bracket 34 contribute substantially to the overall structural strength of the first bracket 34. Similarly, the ends of all second arms 364 of the second bracket 36 are connected to the base plate 32. The second bracket 36 does not have a second arm 364 with a free end. Therefore, all second arms 364 of the second bracket 36 contribute substantially to the overall structural strength of the second bracket 36. This structural configuration enhances the operational stability of the first and second brackets 34, 36.

[0063] like Figure 14 As shown, the first bracket 34 includes a pivot hole, for example, the first bracket 34 includes a first half-open pivot hole 346, a second half-open pivot hole 348 and a fully open pivot hole 350. In this embodiment, there are six fully open pivot holes 350, but this is not limited to other embodiments. The first half-open pivot hole 346, the second half-open pivot hole 348 and the six fully open pivot holes 350 are all disposed on the plurality of first arms 344. The six fully open pivot holes 350 are arranged between the first half-open pivot hole 346 and the second half-open pivot hole 348 along the pivot axis A3. Please also refer to Figure 16 The first half-open pivot hole 346 includes two first hooks 3462 and a first blind hole 3464. The two first hooks 3462 and the first blind hole 3464 are adjacently arranged along the pivot axis A3. The two first hooks 3462 are disposed opposite to each other to form a first gripping space 3462a. The first gripping space 3462a is connected to the first blind hole 3464. Figure 14 and Figure 17 The second semi-open pivot hole 348 includes two second hooks 3482 and a second blind hole 3484. The two second hooks 3482 and the second blind hole 3484 are adjacently arranged along the pivot axis A3. The two second hooks 3482 are arranged opposite to each other to form a second gripping space 3482a. The second gripping space 3482a is connected to the second blind hole 3484. Figure 14 As shown, the first half open pivot hole 346 and the second half open pivot hole 348 are symmetrical in structure. Figure 14 and Figure 18 ,in Figure 18 An enlarged schematic diagram of one of the fully open pivot holes 350 is shown. This fully open pivot hole 350 includes two third hooks 3502, which are arranged opposite to each other to form a third gripping space 3502a. The other fully open pivot holes 350 have the same structure, but may face the same direction or the opposite direction (depending on the Figure 14 and judged it), I will not elaborate on it separately.

[0064] In addition, if Figure 16 As shown, the distance 3462b between the front end of the first hook portion 3462, which is closer to the bottom plate connection side edge of the first bracket 34 (i.e., the side edge closer to the bottom plate 32), and the bottom plate connection side edge in the short direction D4 is greater than the width 3462c of the first hook portion 3462 in the long direction D3. For example, the distance 3462b is 1 to 4 times the width 3462c, but this is not limited to actual operation. This structural design helps maintain the structural strength of the first hook portion 3462 and the gripping force of the two first hook portions 3462.

[0065] like Figure 15 As shown, the second bracket 36 includes a pivot, for example, the second bracket 36 includes a first pivot 366, a second pivot 368 and an intermediate pivot 370. In this embodiment, there are six intermediate pivots 370, but this is not limited to other embodiments. The six intermediate pivots 370 are arranged between the first pivot 366 and the second pivot 368 along the pivot axis A3. Figure 13 The first pivot 366, the second pivot 368 and the six intermediate pivots 370 are connected to the first half-open pivot hole 346, the second half-open pivot hole 348 and the six fully open pivot holes 350 respectively, so that the first bracket 34 and the second bracket 36 are pivotally connected to each other around the pivot axis A3. Figure 13As shown, the first pivot 366 is captured by the two first hooks 3462 in the first capturing space 3462a and extends into the first blind hole 3464. The second pivot 368 is captured by the two second hooks 3482 in the second capturing space 3482a and extends into the second blind hole 3484. The intermediate pivot 370 is captured by the two third hooks 3502 in the third capturing space 3502a. In the first semi-open pivot hole 346, the first pivot 366 is constrained by both the two first hooks 3462 and the first blind hole 3464. The same applies to the second semi-open pivot hole 348 and the second pivot 368. In the fully open pivot hole 350, the intermediate pivot 370 is primarily constrained by the two third hooks 3502. Therefore, in principle, the connection strength between the first half-open pivot hole 346 and the first pivot 366 (or the second half-open pivot hole 348 and the second pivot 368 ) is greater than the connection strength between the fully-open pivot hole 350 and the intermediate pivot 370 .

[0066] See also Figures 13 to 15 In the first bracket 34, a distance 349a is provided between the bottom of the first blind hole 3464 (of the first semi-open pivot hole 346) and the bottom of the second blind hole 3484 (of the second semi-open pivot hole 348) along the pivot axis A3, and a distance 349b is provided between the opening of the first blind hole 3464 and the opening of the second blind hole 3484 along the pivot axis A3; wherein, the first blind hole 3464 and the second blind hole 3484 are located at Figure 14The hidden outline in FIG is shown with dashed lines. In the second bracket 36, a spacing 367 is defined between the ends of the first pivot 366 and the second pivot 368 along the pivot axis A3. Spacing 367 is greater than spacing 349b and smaller than spacing 349a. During the actual assembly of the first bracket 34 and the second bracket 36, force can be applied to the second bracket 36 to slightly arch it, reducing the linear distance between the first pivot 366 and the second pivot 368 to less than the linear distance between the first and second half-open pivot holes 346 and 348. Next, the second bracket 36 is maintained arched, and the first and second pivots 366 and 368 of the second bracket 36 are engaged with the first and second half-open pivot holes 346 and 348, respectively. The second bracket 36 is then released. At this point, the intermediate pivot 370 should, in principle, contact the corresponding fully-open pivot hole 350. Next, the second bracket 36 is pressed toward the first bracket 34, causing the intermediate pivot 370 to engage with the fully open pivot hole 350. Finally, the first half-open pivot hole 346, the second half-open pivot hole 348, and the fully open pivot hole 350 are fully engaged with the first pivot 366, the second pivot 368, and the intermediate pivot 370, respectively. Furthermore, in the connection structure between the first bracket 34 and the second bracket 36, the first half-open pivot hole 346 and the second half-open pivot hole 348 are located at the outermost sides of the first bracket 34 along the pivot axis A3. Therefore, during assembly of the first and second brackets 34, 36, the second bracket 36 can be deformed minimally to allow the first and second pivots 366, 368 to engage with the first and second half-open pivot holes 346 and 348. In other words, this connection structure design balances ease of assembly between the first and second brackets 34, 36 with overall connection strength between the two brackets. Furthermore, the first half-open pivot hole 346 and the second half-open pivot hole 348 being located at the outermost sides along the pivot axis A3 also help maintain the stability of the pivot connection between the first bracket 34 and the second bracket 36 .

[0067] In addition, if Figures 16 to 18 As shown, in the second embodiment, one side of the two first hooks 3462, the two second hooks 3482 or the two third hooks 3502 in the direction of the pivot axis A3 is open, and the other side has a side wall (perpendicular to the pivot axis A3; for example Figure 16 Middle side wall 3466, Figure 17 Middle side wall 3486, Figure 18 The hooks are connected to the middle sidewall 3504. This structural design helps increase the structural strength of the hook itself and its gripping strength. However, this is not a limitation in practice. For example, the two first hooks 3462, the two second hooks 3482, or the two third hooks 3502 can be modified so that both sides in the direction of the pivot axis A3 are open (i.e., without sidewall connections). This structural design increases their structural flexibility and facilitates assembly with the first pivot 366, the second pivot 368, and the middle pivot 370.

[0068] See also Figures 11 to 14 . The first bracket 34 has a sliding shaft, and the first bracket 34 also has a first bottom shaft. In this embodiment, the first bracket 34 has 6 sliding shafts 352a, 352b and 8 first bottom shafts 354, but this is not limited to other embodiments. The 6 sliding shafts 352a, 352b are arranged parallel to the pivot axis A3 and are disposed on the first long arm 342, wherein 4 sliding shafts 352a are located between 2 sliding shafts 352b. The sliding shaft 352b can be made into a protrusion extending parallel to the pivot axis A3. The first bracket 34 also has a sliding hole 353 formed next to each sliding shaft 352a. The first bracket 34 is slidably and rotatably connected to the keycap 30 (the sliding hook 302) via the sliding shafts 352a, 352b, wherein the sliding hook 302 extends into the corresponding sliding hole 353. Furthermore, the eight first bottom shafts 354 are also arranged parallel to the pivot axis A3 and are mounted on the first arms 344. The first bracket 34 also has a first bottom hole 355 formed adjacent to each first bottom shaft 354. The first bracket 34 is rotatably connected to (the first bottom hooks 322 of) the bottom plate 32 via the first bottom shafts 354. The first bottom shafts 354 are rotatably engaged with the corresponding first bottom hooks 322, which extend into the corresponding first bottom holes 355. Furthermore, the bottom plate 32 includes a plurality of stoppers 323. The stoppers 323 limit the position of the first bracket 34, ensuring that the first bottom shafts 354 remain engaged with the corresponding first bottom hooks 322. In addition, in the second embodiment, the stop portion 323 is aligned with the first hook 3462, the second hook 3482 or the third hook 3502 in the short side direction D4. This structural configuration enables the stop portion 323 to provide structural restraint to the first hook 3462, the second hook 3482 or the third hook 3502, which is beneficial to the gripping force of the first hook 3462, the second hook 3482 or the third hook 3502.

[0069] See also Figures 11 to 13 and Figure 15. The second bracket 36 has a gripping shaft and a second bottom shaft. In this embodiment, the second bracket 36 has six gripping shafts 372 and eight second bottom shafts 374, but this is not limited to other embodiments. The six gripping shafts 372 and the eight second bottom shafts 374 are all arranged parallel to the pivot axis A3. The six gripping shafts 372 are disposed on the long arms 362, and two second bottom shafts 374 are disposed on each second arm 364. The second bracket 36 also has a gripping hole 373 formed next to each gripping shaft 372. The second bracket 36 is rotatably connected to the keycap 30 (the gripping hook 304) via the gripping shaft 372, wherein the gripping hook 304 extends into the corresponding gripping hole 373. In addition, the second bracket 36 also has a second bottom hole 375 formed next to each second bottom shaft 374. The second bracket 36 is slidably and rotatably connected to the bottom plate 32 (the second bottom hook 324) via the second bottom shaft 374, wherein the second bottom shaft 374 is slidably and rotatably hooked on the corresponding second bottom hook 324, and the second bottom hook 324 extends into the corresponding second bottom hole 375.

[0070] Also, see Figure 11 and Figure 13 The key cap 30 has a first long side 30a and a second long side 30b, and the first long side 30a and the second long side 30b are parallel to the long side direction D3. Figure 13 In the figure, the vertical direction Dv3 is perpendicular to the paper surface, so the structural outline shown in the figure is equivalent to its vertical projection on the paper surface; and the outline of the key cap 30 is perpendicular to the paper surface. Figure 13 Indicated by dashed lines. In the second embodiment, a first distance L3 is defined in the short-side direction D4 between the projection of the sliding hole 353 of the first bracket 34 in the vertical direction Dv3 and the projection of the first long side 30a of the keycap 30 in the vertical direction Dv3. A second distance L4 is defined in the short-side direction D4 between the projection of the gripping hole 373 of the second bracket 36 in the vertical direction Dv3 and the projection of the second long side 30b of the keycap 30 in the vertical direction Dv3. The first distance L3 is greater than the second distance L4. This structural configuration provides ample space for the structural and actuation design of the sliding shaft 352a of the first bracket 34. Furthermore, the diameter of the sliding shaft 352a of the first bracket 34 is greater than the diameter of the gripping shaft 372 of the second bracket 36. This structural configuration helps enhance the stability of the rotation and sliding of the sliding shaft 352a.

[0071] In addition, in the second embodiment, the first bracket 34 and the second bracket 36 are both structurally reinforced. Figure 14 and Figure 19 ,in Figure 19The figure is an exploded view of the first bracket 34. The first bracket 34 includes a bracket body 340 and a reinforcement member 341, which is embedded in the bracket body 340. The reinforcement member 341 passes through the sliding shaft 352a and completely surrounds the sliding hole 353. Both of these structural features increase the structural strength of the sliding shaft 352a, thereby enhancing the stability of the sliding shaft 352a's rotation and sliding. Furthermore, the reinforcement member 341 partially surrounds the first and second half-open pivot holes 346 and 348 (surrounding three sides thereof), which helps to increase the structural strength of the first and second half-open pivot holes 346 and 348, thereby enhancing the stability of the pivotal connection between the first bracket 34 and the second bracket 36. Furthermore, the reinforcement member 341 itself has multiple bends extending parallel to the pivot axis A3. This structural feature helps to increase the structural strength of the reinforcement member 341 itself, thereby enhancing the structural strength of the first bracket 34.

[0072] Similarly, see Figure 15 and Figure 20 ,in Figure 20 The figure is an exploded view of the second bracket 36. The second bracket 36 includes a bracket body 360 and a reinforcement 361. The reinforcement 361 is embedded in the bracket body 360 to enhance the structural strength of the second bracket 36. Furthermore, the reinforcement 361 itself has multiple bends, which help increase the structural strength of the reinforcement 361 itself, and thus the structural strength of the second bracket 16. Furthermore, in actual operation, the bracket bodies 340 and 360 can be made of, but not limited to, plastic, and the reinforcements 341 and 361 can be made of, but not limited to, metal. Furthermore, in actual operation, it is not limited to the first bracket 34 and the second bracket 36 being structurally reinforced by the reinforcements 341 and 361.

[0073] In addition, if Figure 13 As shown, in the second embodiment, the first bracket 34 and the second bracket 36 together form a dome 42 (wherein the elastic protrusion 40 is accommodated, as shown in FIG. Figure 11 For the first and second brackets 34 and 36, a dome coverage area R3 is defined along the longitudinal direction D3, bounded by the dome 42 (this area is indicated by a chain line in the figure). Within this dome coverage area R3, the first and second brackets 34 and 36 do not have any connection structures (e.g., the sliding shaft 352a / sliding hole 353, the gripping shaft 372 / gripping hole 373) that connect to the keycap 30 and base plate 32. This structural design prevents the structures of the first and second brackets 34 and 36 from being weakened by the presence of connecting structures.

[0074] In addition, if Figure 14 As shown, in the first bracket 34, the dome 42 is formed between two first arms 344 (or the two first arms 344 form the dome 42, and no second arm 364 is provided between the two first arms 344). Figure 12 and Figure 13 As shown, the base plate 32 includes two first bottom hooks 322. The two first support arms 344 each include a first bottom shaft 354 and a first bottom hole 355 formed adjacent to the first bottom shaft 354. The two first bottom shafts 354 are rotatably hooked to their corresponding first bottom hooks 322, and the two first bottom hooks 322 extend into their corresponding first bottom holes 355. A distance 356 between the first bottom hole 355 on the first support arm 344 and the dome hole 42 in the longitudinal direction D3 is greater than or equal to 0.25 times the diameter 42a of the dome hole 42 in the longitudinal direction D3. This structural design helps maintain the structural strength of the support arms adjacent to the dome hole 42 (i.e., the two first support arms 344).

[0075] Also, see Figure 13 and Figure 21 ;in Figure 21 for Figure 13 The left side view of the figure shows the pivot axis A3 marked with a cross. The hidden outline of the first pivot 366 (on the second bracket 36) is drawn with a chain line. The hidden outline of the first blind hole 3464 of the first semi-open pivot hole 346 (on the first bracket 34) coincides with the hidden outline of the first pivot 366. The hidden outlines of the first bottom hooks 322 and 324 (of the bottom plate 32) are drawn with a chain line. The hidden outline of the first bottom hole 355 (on the first bracket 34) is also drawn with a dotted line. The hidden outline of the second bottom hole 375 (on the second bracket 36) is also drawn with a dotted line. Figure 21 As shown, the projection of the first pivot 366 along the longitudinal direction D3 (i.e., equivalent to the first pivot 366 shown as a hidden outline in the figure) overlaps with the projection of the first bottom hook 322 or the first bottom hole 355 along the longitudinal direction D3 (i.e., equivalent to the first bottom hook 322 or the first bottom hole 355 shown as a hidden outline in the figure). The projection of the first pivot 366 along the longitudinal direction D3 overlaps with the projection of the second bottom hook 324 or the second bottom hole 375 along the longitudinal direction D3 (i.e., equivalent to the second bottom hook 324 or the second bottom hole 375 shown as a hidden outline in the figure). This structural configuration reduces the distance from the first pivot 366 to the first and second bottom hooks 322, 324, and thus reduces the moment arm from the first pivot 366 to the first and second bottom hooks 322, 324. This reduces the degree of deformation of the first and second brackets 34, 36 during force transmission, thereby increasing the stability of the first and second brackets 34, 36. The foregoing description also applies to the second half-open pivot hole 348 and the fully open pivot hole 350 on the first bracket 34, the second pivot 368 and the intermediate pivot 370 on the second bracket 36, the other first bottom hooks 322 and second bottom hooks 324 on the bottom plate 32, the other first bottom holes 355 on the first bracket 34, the other second bottom holes 375 on the second bracket 36 and other structural features, which are not repeated here.

[0076] In addition, if Figure 13In the second embodiment, the connection structure of the first bracket 34 and the second bracket 36 is shown as an example, as shown by the chain line frame in the figure. Here, the sliding shaft 352a, sliding hole 353, fully open pivot hole 350, first bottom shaft 354, and first bottom hole 355 of the first bracket 34 are relatively adjacent to the grasping shaft 372, grasping hole 373, intermediate pivot shaft 370, second bottom shaft 374, and second bottom hole 375 of the second bracket 36. Through this structure, the first bracket 34 and the second bracket 36 transmit force and coordinate between them, and between the keycap 30 and the base plate 32. The relative concentration of these structures on the pivot axis A3 helps reduce the torque component perpendicular to the pivot axis A3 during force transmission. This helps stabilize the linkage between the first bracket 34 and the second bracket 36, and between the keycap 30 and the base plate 32, thereby increasing the stability of the operation of the first bracket 34 and the second bracket 36. In the second embodiment, the projections of the first bottom hole 355 and the sliding hole 352a of the first bracket 34 and the gripping hole 373 of the second bracket 36 in the vertical direction Dv3 overlap with each other in the short side direction D4; Figure 13 In the figure, the vertical direction Dv3 is perpendicular to the paper, so the structural outline shown in the figure corresponds to its vertical projection onto the paper. Furthermore, in the second embodiment, the projections of the sliding hole 352a and the fully open pivot hole 350 of the first bracket 34, and the gripping hole 373 of the second bracket 36 along the vertical direction Dv3 also overlap along the short-side direction D4. Furthermore, in the second embodiment, the first bracket 34 and the second bracket 36 have multiple adjacent connecting structures that also exhibit the aforementioned overlapping projection characteristics, thus providing corresponding functional benefits. This description will not be elaborated upon further.

[0077] In addition, if Figure 13As shown, for the first bracket 34 and the second bracket 36, an arm coverage range R4 (indicated by a chain line in the figure) is defined along the longitudinal direction D3, with the two first arms 344 of the first bracket 34 adjacent to the dome 42 (or, the two first arms 344 forming the dome 42, with no second arm 364 disposed between the two first arms 344). This arm coverage range R4 covers the dome 42, the first bracket 34, and the multiple connection structures of the second bracket 36. Within the arm coverage range R4, the total number of the connecting structures of the first bracket 34 (including two sliding shafts 352a / sliding holes 353, two first bottom shafts 354 / first bottom holes 355, and two fully-open pivot holes 350) and the connecting structures of the second bracket 36 (including two grasping shafts 372 / grabbing holes 373 and two intermediate pivot shafts 370) reaches a certain value (for example, but not limited to, greater than or equal to 8; in the second embodiment, the total number of connecting structures is 10). This can increase the structural strength of the first bracket 34 and the second bracket 36 at this location (on the other hand, compensate for the reduced structural strength of the first bracket 34 and the second bracket 36 due to the presence of the dome hole 42), thereby improving the transmission effect of the first bracket 34 and the second bracket 36 at this location (including the transmission along the pivot axis A3), thereby increasing the stability of the movement of the first bracket 34 and the second bracket 36.

[0078] In addition, if Figure 14 and Figure 15 As shown, the first arm 344 adjacent to the dome 42 has a width 344a along the longitudinal direction D3 and a length 344b perpendicular to the longitudinal direction D3. The width 344a is 0.8 to 2 times the length 344b. This structural design helps maintain the structural strength of the first arm 344 to a certain extent. Furthermore, the second arm 364 adjacent to the two first arms 344 has a width 364a along the longitudinal direction D3 and a length 364b perpendicular to the longitudinal direction D3. The width 364a is also 0.8 to 2 times the length 364b. Similarly, this structural design helps maintain the structural strength of the second arm 364 to a certain extent. Furthermore, there are two second arms 364 adjacent to the two first arms 344. These two second arms 364 are located outside the two first arms 344 along the pivot axis A3.

[0079] See also Figure 22 and Figure 23. The long rectangular key structure 5 according to the third embodiment has a long side direction D5 and a short side direction D6 (both are represented by double-headed arrows in the figure), and the long side direction D5 is perpendicular to the short side direction D6. In actual operation, the long rectangular key structure 5 can be but is not limited to a blank key. The long rectangular key structure 5 includes a keycap 50, a base plate 52, a first bracket 54, a second bracket 56, a switch circuit board 58 and an elastic protrusion 60. The keycap 50 is arranged above the base plate 52. The first bracket 54 and the second bracket 56 are pivotally connected to each other around a pivot axis A5 (represented by a chain line in the figure), and the pivot axis A5 is parallel to the long side direction D5. The first bracket 54 and the second bracket 56 are respectively connected to the keycap 50 and the base plate 52 to support the keycap 50 above the base plate 52, so that the keycap 50 can move relative to the base plate 52 via the first bracket 54 and the second bracket 56 (for example, move up and down or move parallel to a vertical direction Dv5). The vertical direction Dv5 (indicated by a double-headed arrow in the figure) is perpendicular to the long-side direction D5 and the short-side direction D6. A switch circuit board 58 is placed on the base plate 52. The switch circuit board 58 has a switch 582 (indicated by a circle filled with diagonal lines in the figure), which roughly corresponds to the center of the keycap 50. A resilient protrusion 60 is disposed on the switch circuit board 58 and below the keycap 50, corresponding to the switch 582. The keycap 50 can be pressed toward the base plate 52, thereby squeezing the resilient protrusion 60 downward to trigger the switch 582. Therefore, logically, the combination of the first bracket 54 and the second bracket 56, or the combination of the first bracket 54, the second bracket 56, and the base plate 52, can be considered a keycap lifting mechanism.

[0080] See also Figures 24 to 26 Among them, Figure 24 In FIG, the outline of the key cap 50 is shown in dotted lines. Figure 24 The first bracket 54 includes a first long arm 542 and a plurality of first support arms 544 extending from the first long arm 542 non-parallel to the long side direction D5 (extending perpendicular to the long side direction D5 in the third embodiment); the ranges of the first long arm 542 and the first support arms 544 are indicated by dotted lines. Figure 25 The first bracket 54 is connected to the keycap 50 via the first long arm 542, and is connected to the base plate 52 via (the end of) the first support arm 544. The second bracket 56 includes a second long arm 562 and a plurality of second support arms 564 extending from the second long arm 562 non-parallel to the longitudinal direction D5 (extending perpendicular to the longitudinal direction D5 in the third embodiment); the ranges of the second long arm 562 and the second support arms 564 are indicated by dotted lines. Figure 26The second bracket 56 is connected to the keycap 50 via the second long arm 562 and to the base plate 52 via (the end of) the second arm 564. The first bracket 54 and the second bracket 56 are pivotally connected to each other via the plurality of first arms 544 and the plurality of second arms 564. The plurality of first arms 544 and the plurality of second arms 564 are arranged in a staggered manner substantially along the pivot axis A5; the outermost arms on the pivot axis A5 are the first arms 544, and at least one of the first arms 544 is located between two second arms 564 in the longitudinal direction D5, and one of the second arms 564 is located between two first arms 544 in the longitudinal direction D5. In other words, the first bracket 54 extends to two opposite outer sides of the second bracket 56 on the pivot axis A5. Logically, the first bracket 54 can be considered an outer bracket, and the second bracket 56 can be considered an inner bracket. Furthermore, the ends of all first arms 544 of the first bracket 54 are connected to the base plate 52. The first bracket 54 does not have a first arm 544 with a free end. Therefore, all first arms 544 of the first bracket 54 contribute substantially to the overall structural strength of the first bracket 54. Similarly, the ends of all second arms 564 of the second bracket 56 are connected to the base plate 52. The second bracket 56 does not have a second arm 564 with a free end. Therefore, all second arms 564 of the second bracket 56 contribute substantially to the overall structural strength of the second bracket 56. This structural configuration enhances the operational stability of the first and second brackets 54, 56.

[0081] like Figure 25 As shown, the first bracket 54 includes a pivot hole, for example, the first bracket 54 includes a first half-open pivot hole 546, a second half-open pivot hole 548 and a fully open pivot hole 550. In this embodiment, there are six fully open pivot holes 550, but this is not limited to other embodiments. The first half-open pivot hole 546, the second half-open pivot hole 548 and the six fully open pivot holes 550 are all disposed on the plurality of first arms 344. The six fully open pivot holes 550 are arranged between the first half-open pivot hole 546 and the second half-open pivot hole 548 along the pivot axis A5. Please also refer to Figure 27 The first semi-open pivot hole 546 includes two first hooks 5462 and a first blind hole 5464. The two first hooks 5462 and the first blind hole 5464 are adjacently arranged along the pivot axis A5. The two first hooks 5462 are disposed opposite to each other to form a first gripping space 5462a. The first gripping space 5462a is connected to the first blind hole 5464. Figure 25 and Figure 28 The second semi-open pivot hole 548 includes two second hooks 5482 and a second blind hole 5484. The two second hooks 5482 and the second blind hole 5484 are adjacently arranged along the pivot axis A5. The two second hooks 5482 are arranged opposite to each other to form a second gripping space 5482a. The second gripping space 5482a is connected to the second blind hole 5484. Figure 25 As shown, the first half open pivot hole 546 and the second half open pivot hole 548 are symmetrical in structure. Figure 25 and Figure 29 ,in Figure 29 An enlarged schematic diagram of one of the fully open pivot holes 550 is shown. This fully open pivot hole 550 includes two third hooks 5502, which are arranged opposite to each other to form a third gripping space 5502a. The other fully open pivot holes 550 have the same structure, but may face the same direction or the opposite direction (depending on the Figure 25 and judged it), I will not elaborate on it separately.

[0082] In addition, if Figure 27 As shown, the distance 5462b between the front end of the first hook portion 5462, which is closer to the bottom plate connection side edge of the first bracket 54 (i.e., the side edge closer to the bottom plate 52), and the bottom plate connection side edge in the short direction D6 is greater than the width 5462c of the first hook portion 5462 in the long direction D5. For example, the distance 5462b is 1 to 4 times the width 5462c, but this is not limited to actual operation. This structural design helps maintain the structural strength of the first hook portion 5462 and the gripping force of the two first hook portions 5462.

[0083] like Figure 26 As shown, the second bracket 56 includes a pivot, for example, the second bracket 56 includes a first pivot 566, a second pivot 568 and an intermediate pivot 570. In this embodiment, there are six intermediate pivots 570, but this is not limited to other embodiments. The six intermediate pivots 570 are arranged between the first pivot 566 and the second pivot 568 along the pivot axis A5. Please also refer to Figure 24 The first pivot 566, the second pivot 568 and the six intermediate pivots 570 are connected to the first half-open pivot hole 546, the second half-open pivot hole 548 and the six fully open pivot holes 550 respectively, so that the first bracket 54 and the second bracket 56 are pivotally connected to each other around the pivot axis A5. Figure 24As shown, the first pivot 566 is captured by the two first hooks 5462 in the first capturing space 5462a and extends into the first blind hole 5464. The second pivot 568 is captured by the two second hooks 5482 in the second capturing space 5482a and extends into the second blind hole 5484. The intermediate pivot 570 is captured by the two third hooks 5502 in the third capturing space 5502a. In the first semi-open pivot hole 546, the first pivot 566 is constrained by both the two first hooks 5462 and the first blind hole 5464. The same applies to the second semi-open pivot hole 548 and the second pivot 568. In the fully open pivot hole 550, the intermediate pivot 570 is primarily constrained by the two third hooks 5502. Therefore, in principle, the connection strength between the first half-open pivot hole 546 and the first pivot 566 (or the second half-open pivot hole 548 and the second pivot 568 ) is greater than the connection strength between the fully open pivot hole 550 and the intermediate pivot 570 .

[0084] See also Figures 24 to 26 In the first bracket 54, a distance 549a is provided between the bottom of the first blind hole 5464 (of the first semi-open pivot hole 546) and the bottom of the second blind hole 5484 (of the second semi-open pivot hole 548) along the pivot axis A5, and a distance 549b is provided between the opening of the first blind hole 5464 and the opening of the second blind hole 5484 along the pivot axis A5; wherein, the first blind hole 5464 and the second blind hole 5484 are located at Figure 25The hidden outline in FIG is shown with dashed lines. In the second bracket 56, a spacing 567 is defined between the ends of the first pivot 566 and the second pivot 568 along the pivot axis A5. Spacing 567 is greater than spacing 549b and smaller than spacing 549a. During the actual assembly of the first bracket 54 and the second bracket 56, force can be applied to the second bracket 56 to slightly arch it, reducing the linear distance between the first pivot 566 and the second pivot 568 to less than the linear distance between the first and second half-open pivot holes 546 and 548. Next, the second bracket 56 is maintained arched, and the first and second pivots 566 and 568 of the second bracket 56 are engaged with the first and second half-open pivot holes 546 and 548, respectively. The second bracket 56 is then released. At this point, the intermediate pivot 570 should, in principle, contact the corresponding fully-open pivot hole 550. Next, the second bracket 56 is pressed toward the first bracket 54, so that the intermediate pivot 570 engages with the fully open pivot hole 550. Finally, the first half-open pivot hole 546, the second half-open pivot hole 548, and the fully open pivot hole 550 are fully engaged with the first pivot 566, the second pivot 568, and the intermediate pivot 570, respectively. Furthermore, in the connection structure between the first bracket 54 and the second bracket 56, the first half-open pivot hole 546 and the second half-open pivot hole 548 are located at the outermost sides of the first bracket 54 along the pivot axis A5. Therefore, during the assembly of the first and second brackets 54, 56, the second bracket 56 can deform minimally to allow the first and second pivots 566, 568 to engage with the first and second half-open pivot holes 546 and 548. In other words, this connection structure design balances the ease of assembly of the first and second brackets 54, 56 with the overall connection strength between the first and second brackets 54 and 56. Furthermore, the first half-open pivot hole 546 and the second half-open pivot hole 548 being located at the outermost sides along the pivot axis A5 also help maintain the stability of the pivot connection between the first bracket 54 and the second bracket 56 .

[0085] In addition, if Figures 27 to 29 As shown, in the third embodiment, one side of the two first hooks 5462, the two second hooks 5482 or the two third hooks 5502 in the direction of the pivot axis A5 is open, and the other side has a side wall (perpendicular to the pivot axis A5; for example Figure 27 Middle side wall 5466, Figure 28 Middle side wall 5486, Figure 29 The hooks 5462, 5482, and 5502 are connected to the middle sidewall 5504. This structural design helps increase the structural strength and gripping strength of the hook itself. However, this is not a limitation in practice. For example, the two first hooks 5462, the two second hooks 5482, or the two third hooks 5502 can be modified so that both sides in the direction of the pivot axis A5 are open (i.e., without sidewall connections). This structural design increases their structural flexibility and facilitates assembly with the first pivot 566, the second pivot 568, and the middle pivot 570.

[0086] See also Figures 22 to 25 . The first bracket 54 has a sliding shaft, and the first bracket 54 also has a first bottom shaft. In this embodiment, the first bracket 54 has 6 sliding shafts 552a, 552b and 8 first bottom shafts 554, but this is not limited to other embodiments. The 6 sliding shafts 552a, 552b are arranged parallel to the pivot axis A5 and are disposed on the first long arm 542, wherein 4 sliding shafts 552a are located between 2 sliding shafts 552b. The sliding shaft 552b can be made into a protrusion extending parallel to the pivot axis A5. The first bracket 54 also has a sliding hole 553 formed next to each sliding shaft 552a. The first bracket 54 is slidably and rotatably connected to the keycap 50 (the sliding hook 502) via the sliding shafts 552a, 552b, wherein the sliding hook 502 extends into the corresponding sliding hole 553. Furthermore, the eight first bottom shafts 554 are also arranged parallel to the pivot axis A5 and are mounted on the first arms 544. The first bracket 54 also has a first bottom hole 555 formed adjacent to each first bottom shaft 554. The first bracket 54 is rotatably connected to (the first bottom hooks 522 of) the bottom plate 52 via the first bottom shafts 554. The first bottom shafts 554 are rotatably hooked to corresponding first bottom hooks 522, which extend into corresponding first bottom holes 555. Furthermore, the bottom plate 52 includes a plurality of stoppers 523. The stoppers 523 limit the first bracket 54 so that the first bottom shafts 554 remain hooked to the corresponding first bottom hooks 522. In addition, in the third embodiment, the stop portion 523 is aligned with the first hook 5462, the second hook 5482 or the third hook 5502 in the short side direction D6. This structural configuration enables the stop portion 523 to provide structural restraint to the first hook 5462, the second hook 5482 or the third hook 5502, which is beneficial to the gripping force of the first hook 5462, the second hook 5482 or the third hook 5502.

[0087] See also Figures 22 to 24 and Figure 26. The second bracket 56 has a grab shaft, and the second bracket 56 also has a second bottom shaft. In this embodiment, the second bracket 56 has 6 grab shafts 572 and 8 second bottom shafts 574, but this is not limited to other embodiments. The 6 grab shafts 572 and the 8 second bottom shafts 574 are all arranged parallel to the pivot axis A5. The 6 grab shafts 572 are set on the long arm 562, and two second bottom shafts 574 are set on each second support arm 564. The second bracket 56 also has a grab hole 573 formed next to each grab shaft 572. The second bracket 56 is rotatably connected to the keycap 50 (the grab hook 504) via the grab shaft 572, wherein the grab hook 504 extends into the corresponding grab hole 573. In addition, the second bracket 56 also has a second bottom hole 575 formed next to each second bottom shaft 574. The second bracket 56 is slidably and rotatably connected to the bottom plate 52 (the second bottom hook 524) via the second bottom shaft 574, wherein the second bottom shaft 574 is slidably and rotatably hooked on the corresponding second bottom hook 524, and the second bottom hook 524 extends into the corresponding second bottom hole 575.

[0088] Also, see Figure 22 and Figure 24 The key cap 50 has a first long side 50a and a second long side 50b, and the first long side 50a and the second long side 50b are parallel to the long side direction D5. Figure 24 In the figure, the vertical direction Dv5 is perpendicular to the paper surface, so the structural outline shown in the figure is equivalent to its vertical projection on the paper surface; and the outline of the key cap 50 is Figure 24 Indicated by dashed lines. In the third embodiment, a first distance L5 is defined in the short-side direction D6 between the projection of the sliding hole 553 of the first bracket 54 in the vertical direction Dv5 and the projection of the first long side 50a of the keycap 50 in the vertical direction Dv5. A second distance L6 is defined in the short-side direction D6 between the projection of the gripping hole 573 of the second bracket 56 in the vertical direction Dv5 and the projection of the second long side 50b of the keycap 50 in the vertical direction Dv5. The first distance L5 is greater than the second distance L6. This structural configuration provides ample space for the structure and actuation design of the sliding shaft 552a of the first bracket 54. Furthermore, the diameter of the sliding shaft 552a of the first bracket 54 is greater than the diameter of the gripping shaft 572 of the second bracket 56. This structural configuration helps enhance the rotational and sliding stability of the sliding shaft 552a.

[0089] In addition, if Figure 24 As shown, in the third embodiment, the first bracket 54 and the second bracket 56 together form a dome hole 62 (wherein the elastic protrusion 60 is accommodated, as shown in FIG. Figure 22For the first and second brackets 54 and 56, a dome coverage area R5 is defined along the longitudinal direction D5, bounded by the dome 62 (this area is indicated by a chain line in the figure). Within this dome coverage area R5, the first and second brackets 54 and 56 do not have any connection structures (e.g., the sliding shaft 552a / sliding hole 553, the gripping shaft 572 / gripping hole 573) that connect to the keycap 50 and the base plate 52. This structural design prevents the structures of the first and second brackets 54 and 56 from being weakened by the presence of connecting structures.

[0090] In addition, if Figure 25 As shown, in the first bracket 54, the dome 62 is formed between two first arms 544 (or the two first arms 544 form the dome 62, and no second arm 564 is provided between the two first arms 544). Figure 23 and Figure 24 As shown, the base plate 52 includes two first bottom hooks 522. The two first support arms 544 each include a first bottom shaft 554 and a first bottom hole 555 formed adjacent to the first bottom shaft 554. The two first bottom shafts 554 are rotatably hooked to their corresponding first bottom hooks 522, and the two first bottom hooks 522 extend into their corresponding first bottom holes 555. The distance 556 between the first bottom hole 555 on the first support arm 544 and the dome hole 62 in the longitudinal direction D5 is greater than or equal to 0.25 times the diameter 62a of the dome hole 62 in the longitudinal direction D5. This structural design helps maintain the structural strength of the support arms adjacent to the dome hole 62 (i.e., the two first support arms 544).

[0091] Also, see Figure 24 and Figure 30 ;in Figure 30 for Figure 24 The left side view of the figure shows the pivot axis A5 marked with a cross. The hidden outline of the first pivot 566 (on the second bracket 56) is also drawn with a chain line. The hidden outline of the first blind hole 5464 of the first semi-open pivot hole 546 (on the first bracket 54) coincides with the hidden outline of the first pivot 566. The hidden outlines of the first bottom hooks 522 and 524 (of the bottom plate 52) are drawn with a chain line. The hidden outline of the first bottom hole 555 (on the first bracket 54) is drawn with a dotted line. The hidden outline of the second bottom hole 575 (on the second bracket 56) is also drawn with a dotted line. Figure 30As shown, the projection of the first pivot 566 along the longitudinal direction D5 (i.e., equivalent to the first pivot 566 shown as a hidden outline in the figure) overlaps with the projection of the first bottom hook 522 or the first bottom hole 555 along the longitudinal direction D5 (i.e., equivalent to the first bottom hook 522 or the first bottom hole 555 shown as a hidden outline in the figure); the projection of the first pivot 566 along the longitudinal direction D5 overlaps with the projection of the second bottom hook 524 or the second bottom hole 575 along the longitudinal direction D5 (i.e., equivalent to the second bottom hook 524 or the second bottom hole 575 shown as a hidden outline in the figure). This structural configuration reduces the distance from the first pivot 566 to the first bottom hooks 522, 524, that is, reduces the moment arm from the first pivot 566 to the first bottom hooks 522, 524, thereby reducing the degree of deformation of the first bracket 54 and the second bracket 56 during force transmission, thereby increasing the stability of the operation of the first bracket 54 and the second bracket 56. The above description also applies to the second half-open pivot hole 548 and the fully open pivot hole 550 on the first bracket 54, the second pivot 568 and the intermediate pivot 570 on the second bracket 56, the other first bottom hooks 522, 524 on the bottom plate 52, the other first bottom holes 555 on the first bracket 54, the other second bottom holes 575 on the second bracket 56 and other structural features, which are not repeated here.

[0092] In addition, if Figure 24 In the third embodiment, the connection structure of the first bracket 54 and the second bracket 56 is shown as an example, as shown by the chain line frame in the figure. Here, the sliding shaft 552a, sliding hole 553, fully open pivot hole 550, first bottom shaft 554, and first bottom hole 555 of the first bracket 54 are relatively adjacent to the grasping shaft 572, grasping hole 573, intermediate pivot shaft 570, second bottom shaft 574, and second bottom hole 575 of the second bracket 56. Through the aforementioned structure, the first bracket 54 and the second bracket 56 transmit force and coordinate between them, and between the keycap 50 and the base plate 52. The relative concentration of the aforementioned structures on the pivot axis A5 helps reduce the torque component perpendicular to the pivot axis A5 during force transmission, thereby facilitating stable coordination between the first bracket 54 and the second bracket 56, and between the keycap 50 and the base plate 52, thereby increasing the stability of the operation of the first bracket 54 and the second bracket 56. In the second embodiment, the projections of the first bottom hole 555 and the sliding hole 552a of the first bracket 54 and the gripping hole 573 of the second bracket 56 in the vertical direction Dv5 overlap with each other in the short side direction D6; Figure 24In the figure, the vertical direction Dv5 is perpendicular to the paper, so the structural outline shown in the figure corresponds to its vertical projection onto the paper. Furthermore, in the third embodiment, the projections of the sliding hole 552a and the fully open pivot hole 550 of the first bracket 54, and the gripping hole 573 of the second bracket 5.6 along the vertical direction Dv5 also overlap in the short-side direction D6. Furthermore, in the third embodiment, the first bracket 54 and the second bracket 56 have multiple adjacent connecting structures that also exhibit the aforementioned overlapping projection characteristics, thus providing corresponding functional benefits. This will not be further elaborated.

[0093] In addition, if Figure 24 As shown, for the first bracket 54 and the second bracket 56, an arm coverage range R6 (indicated by a chain line in the figure) is defined along the longitudinal direction D5, with the two first arms 544 of the first bracket 54 adjacent to the dome 62 (or, the two first arms 544 forming the dome 62, with no second arm 564 disposed between the two first arms 544). This arm coverage range R6 covers the dome 62, the first bracket 54, and the multiple connection structures of the second bracket 56. Within the arm coverage range R6, the sum of the number of the connecting structures of the first bracket 54 (including two sliding shafts 552a / sliding holes 553, two first bottom shafts 554 / first bottom holes 555, and two fully-open pivot holes 550) and the connecting structures of the second bracket 56 (including two grasping shafts 572 / grabbing holes 573 and two intermediate pivot shafts 570) reaches a certain value (for example, but not limited to, greater than or equal to 8; in the third embodiment, the sum of the number of connecting structures is 10), which can increase the structural strength of the first bracket 54 and the second bracket 56 at this location (on the other hand, compensate for the reduced structural strength of the first bracket 54 and the second bracket 56 due to the presence of the dome hole 62), thereby improving the transmission effect of the first bracket 54 and the second bracket 56 at this location (including the transmission along the pivot axis A5), thereby increasing the stability of the actuation of the first bracket 54 and the second bracket 56.

[0094] In addition, if Figure 25 and Figure 26 As shown, the first support arm 544 adjacent to the dome 62 has a width 544a along the longitudinal direction D5 and a length 544b perpendicular to the longitudinal direction D5. The width 544a is 0.8 to 2 times the length 544b. This structural design helps maintain the structural strength of the first support arm 544 to a certain extent. Furthermore, the second support arm 564 adjacent to the two first support arms 544 has a width 564a along the longitudinal direction D5 and a length 564b perpendicular to the longitudinal direction D5. The width 564a is also 0.8 to 2 times the length 564b. Similarly, this structural design helps maintain the structural strength of the second support arm 564 to a certain extent. Furthermore, two second support arms 564 are adjacent to the two first support arms 544 and are located outside the two first support arms 544 along the pivot axis A5.

[0095] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A keycap lifting mechanism for a long rectangular key structure having a long side direction and a short side direction, characterized in that The keycap lifting mechanism comprises: A bottom plate, the bottom plate comprising a first bottom hook and a second bottom hook; A first bracket, the first bracket comprising a pivot hole, a first bottom shaft, and a first bottom hole formed next to the first bottom shaft, the first bottom shaft being rotatably hooked on the first bottom hook, and the first bottom hook extending into the first bottom hole; as well as a second bracket, the second bracket comprising a pivot, a second bottom shaft, and a second bottom hole formed adjacent to the second bottom shaft, the second bottom shaft being rotatably hooked to the second bottom hook, the second bottom hook extending into the second bottom hole, the pivot being inserted into the pivot hole to enable the first bracket and the second bracket to rotate relative to each other about a pivot axis, the pivot axis being parallel to the long side; The projection of the pivot in the long side direction overlaps with the projection of the first bottom hook or the first bottom hole in the long side direction, and the projection of the pivot in the long side direction overlaps with the projection of the second bottom hook or the second bottom hole in the long side direction.

2. A keycap lifting mechanism for a long rectangular key structure having a long side direction and a short side direction, characterized in that The keycap lifting mechanism comprises: base plate; A first bracket, the first bracket comprising a first long arm and a plurality of first support arms, the first long arm extending parallel to the long side direction, the plurality of first support arms protruding from the first long arm non-parallel to the long side direction and connected to the base plate; as well as A second bracket, the second bracket comprising a second long arm and a plurality of second support arms, the second long arm extending parallel to the long side direction, the plurality of second support arms protruding from the second long arm non-parallel to the long side direction and connected to the bottom plate; The first bracket and the second bracket are pivotally connected to each other around a pivot axis, one of the multiple first arms is located between two of the multiple second arms in the long side direction, and one of the multiple second arms is located between two of the multiple first arms in the long side direction.

3. The keycap lifting mechanism according to claim 2, wherein: A dome hole is formed between two first arms among the plurality of first arms. The bottom plate includes two first bottom hooks. The two first arms each include a first bottom shaft and a first bottom hole formed next to the first bottom shaft. The two first bottom shafts are rotatably hooked on corresponding first bottom hooks. The two first bottom hooks extend into corresponding first bottom holes. The distance between the first bottom hole and the dome hole in the longitudinal direction is greater than or equal to 0.25 times the diameter of the dome hole in the longitudinal direction.

4. A keycap lifting mechanism for a long rectangular key structure having a long side direction and a short side direction, characterized in that The keycap lifting mechanism comprises: a first bracket, the first bracket comprising a first semi-open pivot hole, a second semi-open pivot hole, and a fully open pivot hole, the fully open pivot hole being located between the first semi-open pivot hole and the second semi-open pivot hole in the longitudinal direction, the first semi-open pivot hole comprising two first hooks and a first blind hole, the two first hooks being arranged opposite to each other to form a first gripping space, the first blind hole being connected to the first gripping space, the second semi-open pivot hole comprising two second hooks and a second blind hole, the two second hooks being arranged opposite to each other to form a second gripping space, the second blind hole being connected to the second gripping space, the opening of the first blind hole being opposite to the opening of the second blind hole, and the fully open pivot hole comprising two third hooks, the two third hooks being arranged opposite to each other to form a third gripping space; as well as The second bracket includes a first pivot, a second pivot and an intermediate pivot. The first pivot is grasped by the two first hooks in the first grasping space and extends into the first blind hole. The second pivot is grasped by the two second hooks in the second grasping space and extends into the second blind hole. The intermediate pivot is grasped by the two third hooks in the third grasping space, so that the second bracket and the first bracket are pivotally connected to each other around a pivot axis, and the pivot axis is parallel to the long side direction.

5. The keycap lifting mechanism according to claim 4, wherein: The distance from the front end of the first hook portion of the two first hook portions close to the bottom plate connecting side edge of the first bracket in the short side direction to the bottom plate connecting side edge is 1 to 4 times the width of the first hook portion in the long side direction.

6. The keycap lifting mechanism according to claim 4, wherein: The first bracket is located on two opposite outer sides of the second bracket on the pivot axis.

7. The keycap lifting mechanism according to claim 4, wherein: The fully open pivot hole includes a side wall. The two third hooks are located on one side of the side wall in the long side direction. The side wall connects the two third hooks.

8. The keycap lifting mechanism according to any one of claims 1, 2 and 4, characterized in that: The first bracket includes a bracket body and a reinforcement member, the reinforcement member is embedded in the bracket body, the first bracket has a sliding shaft and a sliding hole formed next to the sliding shaft, the reinforcement member passes through the sliding shaft, and the first bracket is slidably and rotatably connected to the keycap of the long rectangular key structure via the sliding shaft.

9. The keycap lifting mechanism according to claim 8, wherein: The reinforcement member surrounds the sliding hole.

10. The keycap lifting mechanism according to any one of claims 1, 2 and 4, characterized in that: The first bracket has a sliding shaft and a sliding hole formed next to the sliding shaft, the second bracket has a grabbing shaft and a grabbing hole formed next to the grabbing shaft, the shaft diameter of the sliding shaft is larger than the shaft diameter of the grabbing shaft, the first bracket is slidably and rotatably connected to the keycap of the long rectangular key structure via the sliding shaft, and the second bracket is rotatably connected to the keycap of the long rectangular key structure via the grabbing shaft.

11. A long rectangular key structure, the long rectangular key structure having a long side direction and a short side direction, characterized in that The long rectangular key structure includes: a keycap, the keycap having a first long side and a second long side, the first long side and the second long side being parallel to the long side direction; and The keycap lifting mechanism according to any one of claims 1, 2, and 4, wherein the keycap is supported by the first bracket and the second bracket so as to be able to move up and down parallel to a vertical direction, the first bracket having a sliding shaft and a sliding hole formed next to the sliding shaft, the second bracket having a grasping shaft and a grasping hole formed next to the grasping shaft, the first bracket being slidably and rotatably connected to the keycap via the sliding shaft, the second bracket being rotatably connected to the keycap via the grasping shaft, a first distance being provided in the short side direction between the projection of the sliding hole in the vertical direction and the projection of the first long side in the vertical direction, a second distance being provided in the short side direction between the projection of the grasping hole in the vertical direction and the projection of the second long side in the vertical direction, the first distance being greater than the second distance.

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