TWI703603B - Keyswitch structure - Google Patents

Abstract

A device casing includes a keycap, a base, and two supports that are pivotally connected to each other and connected to and between the keycap and the base. The keycap can move up and down relative to the base through the two supports. In an embodiment, the two supports are pivotally connected through an engagement of a shaft with a C-shaped shaft hole. In another embodiment, each support is provided in a form of an n-shaped structure and includes a semi-shaft hole and a shaft portion at two ends of the n-shaped structure respectively. The two supports are pivotally connected by the shafts rotatably abutting the corresponding semi-shaft holes.

Description

Button structure

The present invention relates to a mechanical key structure, in particular to a mechanical key structure whose key cap is supported and actuated by two brackets.

Many mechanical key structures use scissor-leg brackets to support the keycaps. The two brackets of the scissor-leg brackets are generally pivotally connected with each other in a complete hole shaft structure located in the middle of the bracket. The hole-shaft coordination can provide the brackets with good mutual pivot stability. However, if the bracket is pivotally connected with a complete hole-shaft structure, the two brackets often have to be assembled along the pivot axis, or the two brackets are assembled staggered at a specific angle, such as process adjustment and jig design in automated assembly, or It is difficult to avoid misalignment and overcutting, which will affect yield and productivity.

US Patent No. 6,060,676 discloses that the two brackets are occludingly connected by the tooth-like structure at the end of the arm. This kind of tooth-like structure has to go through multiple concave-convex structure detachment and alignment during the key pressing stroke, increasing the keycap's pressing stroke Instability. In addition, the tooth-like structure has only the concave-convex structure in the occlusal end surface area, and the stent end structure has multiple positions that are not restricted, which also impairs the stability of the key cap.

Furthermore, when the overall size of the button structure is reduced, it is difficult for the bracket to have enough configuration space to form a complete hole and shaft structure; even if a complete hole and shaft structure is formed, it is likely to cause insufficient structural strength and reduce the stability of the bracket pivoting. . In addition, generally speaking, the combination of a complete hole-shaft structure may cause permanent deformation or damage to the stent. When the overall size of the key structure is reduced, this permanent deformation or damage is likely to affect the strength of the bracket itself and the stability of the combination between the two, and further affect the operating stability of the key structure.

In view of the problems in the prior art, one objective of the present invention is to provide a key structure in which the pivotable shaft of the two brackets is matched with the C-shaped shaft hole or the shaft part is matched with the half hole.

The key structure according to an embodiment includes a key cap, a base, a first bracket, and a second bracket. The base is arranged under the key cap. The first bracket is connected between the key cap and the base, and the first bracket has a shaft. The second bracket is connected between the key cap and the base, and the second bracket has a C-shaped shaft hole. The first bracket and the second bracket are clamped into the C-shaped shaft hole via the shaft to be pivotally connected with respect to a rotation axis. The C-shaped shaft hole has an opening, and the direction of the opening is perpendicular to the direction of the rotation axis. The key cap can move up and down relative to the base via the first bracket and the second bracket.

A key structure according to another embodiment includes a key cap, a base, a first bracket, and a second bracket. The base is arranged under the key cap. The first bracket is connected between the key cap and the base and has a first ""-shaped structure. The first bracket includes a first keycap connecting portion and a shaft portion, the first bracket is rotatably connected to the keycap via the first keycap connecting portion, and the shaft portion is located at an end of the first ``shaped structure'' . The second bracket is connected between the keycap and the base and has a second ㄇ-shaped structure. The second bracket includes a second keycap connecting portion and a half shaft hole, the second bracket is rotatably connected to the keycap via the second keycap connecting portion, and the half shaft hole is located in the second U-shaped structure One end. The first bracket and the second bracket are rotatably abutted in the half-shaft hole via the shaft portion to be pivotally connected with respect to a rotation axis. The key cap can move up and down relative to the base via the first bracket and the second bracket.

Compared with the prior art, the key structure of the present invention adopts an incomplete hole and shaft structure, so the structural strength of the bracket itself can be maintained. In the pivotal structure of the shaft and the C-shaped shaft hole, it provides structural elasticity and limit in all directions during assembly, which can take into account the strength of the pivotal structure and the maintenance of the rotation stability, and avoid the production during the process of combining the bracket Permanent deformation or damage to the stent. In the structure where the shaft part and the half hole are matched, the projection of the sliding contact surface between the two brackets on a plane perpendicular to the rotation axis can still present a complete arc required for the rotation of the bracket, and has a rotation axis and The limit design in the vertical direction can maintain a certain degree of pivotal strength and rotation stability. The two brackets of the key structure of the invention have high stability The qualitative pivot structure can be automatically assembled in an end-to-end manner horizontally, so that the keycap lifting stroke can have better trajectory stability.

The advantages and spirit of the present invention can be further understood from the following detailed description of the invention and the accompanying drawings.

1, 3: Button structure

10: keycap

102: cap body

104: first bracket connection part

106: second bracket connection part

12: Base

122: bottom plate

124: First Chute

124a: first entrance

126: Second Chute

126a: second entrance

14, 34: the first bracket

14a: first extension direction

142: The first bracket body

144: The first keycap connection part

146: First base connection part

148: first axis

150: The first C-shaped shaft hole

150a: first opening

150b: bottom

16, 36: second bracket

16a: second extension direction

162: The second bracket body

164: Second keycap connection part

166: second base connection part

168: second axis

170: The second C-shaped shaft hole

170a: second opening

170b: bottom

18: Switch circuit board

182: Switch

20: Elastic reset piece

342: first half shaft hole

342a: Semicircular groove surface

342b: bottom

344: first shaft

344a: Incomplete cylindrical surface

362: second half shaft hole

362a: Semicircular groove surface

362b: bottom

364: second shaft

364a: Incomplete cylindrical surface

A1: Rotation axis

Fig. 1 is a schematic diagram of a key structure according to an embodiment.

Figure 2 is a partial exploded view of the button structure in Figure 1.

3 is a schematic diagram of the first bracket of the key structure in FIG. 2.

4 is a schematic diagram of the second bracket of the key structure in FIG. 2.

5 is a cross-sectional view of the horizontal assembly of the first bracket and the second bracket in FIG. 2, and the cross-sectional position is shown as the center line X-X in FIG. 1.

Fig. 6 is a schematic diagram of a second bracket according to another embodiment.

Fig. 7 is a partial exploded view of a key structure according to another embodiment.

Fig. 8 is a schematic diagram of the first bracket of the key structure in Fig. 7.

FIG. 9 is a schematic diagram of the second bracket of the key structure in FIG. 7.

Fig. 10 is a schematic diagram of a first bracket according to another embodiment.

Please refer to Figure 1 and Figure 2. According to an embodiment, a key structure 1 includes a key cap 10, a base 12, a first bracket 14, a second bracket 16, a switch circuit board 18 and an elastic reset member 20. The base 12 is disposed under the key cap 10, and the first bracket 14 and the second bracket 16 are pivotally connected to each other with respect to a rotation axis A1 (shown by chain lines in FIG. 2) and are individually connected between the key cap 10 and the base 12 , The switch circuit board 18 is placed on the base 12, and the elastic reset member 20 is placed on the switch circuit board 18 corresponding to a switch 182 of the switch circuit board 18 (shown in a circle with hatching in FIG. 2). The keycap 10 can be relative to the base via the first bracket 14 and the second bracket 16 12 vertically moves up and down, and the downwardly moving keycap 10 can squeeze the elastic reset member 20 to trigger the switch 182. In practice, the switch circuit board 18 can be, but is not limited to, a conventional thin film circuit board, and the details of its structure will not be repeated. To simplify the diagram, the switch circuit board 18 is still shown as a single entity. The elastic restoring member 20 can be, but is not limited to, a silicone or rubber dome.

Please also refer to Figure 3 and Figure 4. In this embodiment, the keycap 10 includes a cap body 102 and two first bracket connecting portions 104 and two second bracket connecting portions 106 disposed on the cap body 102. The base 12 includes a bottom plate 122 and two first sliding grooves 124 and two second sliding grooves 126 disposed on the bottom plate 122. The first bracket 14 includes a first bracket body 142, two first keycap connecting portions 144, two first base connecting portions 146, a first shaft 148, and a first C-shaped shaft hole disposed on the first bracket body 142 150. The first bracket body 142 has a first U-shaped structure, and the two first keycap connecting portions 144 and the two first base connecting portions 146 are located at opposite ends of the first U-shaped structure in a direction perpendicular to the rotation axis A1. On the other hand, the two first base connecting portions 146 are respectively located outside the two ends of the first U-shaped structure (or in other embodiments, located inside the first sliding groove 124), the first shaft 148 and the first The C-shaped shaft holes 150 are also located at the two ends and extend parallel to the rotation axis A1. When the first shaft 148 and the first C-shaped shaft hole 150 are coaxial, that is, when the coaxial axis overlaps the rotation axis A1, the first bracket 14 can rotate more stably. The first base connecting portion 146 is located between the first shaft 148 (or the first C-shaped shaft hole 150) and the first keycap connecting portion 144. The first C-shaped shaft hole 150 is located at the end of the side arm of the first U-shaped structure. It has a first opening 150a and an incomplete circular groove surface (extending along the rotation axis A1). The opening direction of the first opening 150a The direction perpendicular to the axis of rotation A1. The first bracket 14 and the keycap 10 are rotatably connected via the first keycap connecting portion 144 and the first bracket connecting portion 104; wherein, the first bracket connecting portion 104 has a shaft hole structure, and the first keycap connecting portion 144 is A columnar shape, extending from the first bracket body 142 parallel to the rotation axis A1 and pivotally connected to the first bracket connecting portion 104. The first bracket 14 and the base 12 are rotatably connected via the first base connecting portion 146 and the first sliding groove 124; wherein the first sliding groove 124 is parallel to the bottom plate 122 and extends perpendicular to the rotation axis A1, and the first base is connected The portion 146 has a cylindrical shape, and extends from the first bracket body 142 parallel to the rotation axis A1 and is rotatably and slidably disposed in the first sliding groove 124.

The second bracket 16 includes a second bracket body 162, two second keycap connecting portions 164, two second base connecting portions 166, a second shaft 168, and a second C-shaped shaft hole disposed on the second bracket body 162 170. The second bracket body 162 has a second U-shaped structure. The two second keycap connecting portions 164 and the two second base connecting portions 166 are located on opposite sides of the second U-shaped structure. The two second base connecting portions 166 Located on the outer side of the two ends of the second U-shaped structure (or in other embodiments, located on the inner side in accordance with the position of the second sliding groove 126), the second shaft 168 and the second C-shaped shaft hole 170 are also located respectively The two ends extend parallel to the rotating axis A1. When the second shaft 168 and the second C-shaped shaft hole are coaxial, that is, when the coaxial axis overlaps the rotation axis A1, the second bracket 16 can rotate more stably. The second base connecting portion 166 is located between the second shaft 168 (or the second C-shaped shaft hole 170) and the second keycap connecting portion 164. The second C-shaped shaft hole 170 is located at the end of the side arm of the second U-shaped structure. It has a second opening 170a and an incomplete circular groove surface (extending along the rotation axis A1). The opening direction of the second opening 170a The direction perpendicular to the axis of rotation A1. The second bracket 16 and the keycap 10 are rotatably connected via the second keycap connecting portion 164 and the second bracket connecting portion 106; wherein, the second bracket connecting portion 106 has a sliding groove structure, and the second keycap connecting portion 164 It is in a column shape and extends from the second bracket body 162 parallel to the rotation axis A1 and is rotatably and slidably disposed on the second bracket connecting portion 106. The second bracket 16 and the base 12 are rotatably connected via the second base connecting portion 166 and the second sliding groove 126; wherein the second sliding groove 126 is parallel to the bottom plate 122 and extends perpendicular to the rotation axis A1, and the second base is connected The portion 166 is in a column shape, and extends from the second bracket body 162 parallel to the rotation axis A1 and is rotatably and slidably disposed in the second sliding groove 126. The first shaft 148 is clamped into the second C-shaped shaft hole 170 and the second shaft 168 is clamped into the first C-shaped shaft hole 150, the first bracket 14 and the second bracket 16 are pivotally connected with respect to the rotation axis A1; The second C-shaped shaft hole 170 and the incomplete circular groove surface of the first C-shaped shaft hole 150 contact and limit at various rotation angles, and the first shaft 148 and the second shaft 168 can be smooth and stable under high pivot strength To rotate. Wherein, from the top view of the key structure 1, the first bracket 14 and the second bracket 16 are connected to form a square-shaped structure, and the elastic restoring member 20 penetrates therethrough to abut the key cap 10. From the side view of the key structure 1, when the key cap 10 is not pressed, the first bracket 14 and the second bracket 16 are connected to form a V-shaped structure.

In this embodiment, the first C-shaped shaft hole 150 and the second C-shaped shaft hole 170 have deformability due to the existence of the gap (first opening 150a/second opening 170a), so that the second shaft 168 and the first shaft 148 can be inserted into the first C-shaped shaft hole 150 and the second C-shaped shaft hole 170 through the first opening 150a and the second opening 170a, respectively. The size of the first opening 150a and the second opening 170a can be set to be smaller than the shaft diameter of the second shaft 168 and the first shaft 148 (or the diameter of the first C-shaped shaft hole 150 and the second C-shaped shaft hole 170), for example, about It is two-thirds or one-half of the shaft diameter, in order to take into account the operation of the second shaft 168 and the first shaft 148 into the first C-shaped shaft hole 150 and the second C-shaped shaft hole 170 and the first C The clamping effect of the second C-shaped shaft hole 150 and the second C-shaped shaft hole 170 on the second shaft 168 and the first shaft 148. In addition, as shown in FIG. 3, the first C-shaped shaft hole 150 has a bottom 150b on the rotation axis A1, and the first opening 150a extends parallel to the rotation axis A1 and penetrates the bottom 150b. On the other hand, the bottom 150b is realized by a side wall structure extending perpendicular to the rotation axis A1. Thereby, the bottom 150b can increase the structural strength of the first C-shaped shaft hole 150, and restrict the second shaft 168 in the rotation axis A1, which helps to improve the clamping of the first C-shaped shaft hole 150 on the second shaft 168 Effect; In addition, the first opening 150a penetrates the bottom 150b to avoid or suppress the bottom 150b from affecting the second shaft 168 into the first C-shaped shaft hole 150. In another embodiment, by fine-tuning the size of the first opening 150a and the thickness of the bottom 150b, the clamping effect of the first C-shaped shaft hole 150 on the second shaft 168 and its structural strength can be taken into account; however, in practice Above, it is not necessary for the first opening 150a to penetrate through the bottom 150b. In addition, similar to the first C-shaped shaft hole 150, the second C-shaped shaft hole 170 has a bottom 170b on the rotation axis A1, and the second opening 170a extends parallel to the rotation axis A1 and penetrates the bottom 170b. On the other hand, the bottom 170b is realized by a side wall structure extending perpendicular to the rotation axis A1. The function of the bottom 170b and the description of its changes can be referred to the related description of the aforementioned bottom 150b, and will not be repeated.

In this embodiment, as shown in FIG. 2, the first sliding groove 124 extends parallel to the bottom plate 122 and has a first inlet 124 a, and the second sliding groove 126 extends parallel to the bottom plate 122 and has a second inlet 126 a. As shown in FIG. 3, a first extension direction 14a is defined on the first bracket 14 (shown by arrows in FIG. 3, that is, the direction pointed by the two side arms of the first bracket 14), from the first keycap connecting portion 144 Point to the first base connecting part 146, the first The direction of an opening 150a is substantially parallel to the first extension direction 14a (or the first opening 150a faces the second bracket 16); as shown in FIG. 4, a second extension direction 16a is defined on the second bracket 16 (with arrows 4, that is, the direction of the two side arms of the second bracket 16), from the second keycap connecting portion 164 to the second base connecting portion 166, the direction of the second opening 170a is substantially parallel to the second extending direction 16a (or the second opening 170a faces the first bracket 14). Thereby, when assembling the first bracket 14 and the second bracket 16 to the base 12, the first base connecting portion 146 and the second base connecting portion 166 can be correspondingly entered through the first entrance 124a and the second entrance 126a. In the first sliding groove 124 and the second sliding groove 126. The pivotal connection of the first bracket 14 and the second bracket 16 can be horizontally end-to-end (that is, the end of the side arm) assembled with automated equipment through a jig. As shown in FIG. 5, the first shaft 148 is aligned with the second opening 170a And the second shaft 168 is aligned with the first opening 150a (for example, the first bracket 14 and the second bracket 16 are simply placed approximately horizontally), and then the first bracket 14 and the second bracket 16 are turned toward the end (ie, The ends of the side arms are horizontally close to each other (as shown by the arrows in the figure, that is, parallel to the first extension direction 14a and the second extension direction 16a, that is, perpendicular to the rotation axis A1), until the first axis 148 Pass through the second opening 170a to be inserted into the second C-shaped shaft hole 170 and the second shaft 168 passes through the first opening 150a to be inserted into the first C-shaped shaft hole 150, that is, the first bracket 14 and the second bracket 16 are completed Pivot. When the first shaft 148, the second C-shaped shaft hole 170, the second shaft 168 and the first C-shaped shaft hole 150 are coaxial, that is, when the coaxial axis overlaps the rotation axis A1, the first bracket 14 and the The second bracket 16 can rotate relatively stably. At this time, the first base connecting portion 146 and the second base connecting portion 166 are also slidably disposed in the first sliding groove 124 and the second sliding groove 126 correspondingly. In practice, the first bracket 14 and the second bracket 16 can also be pivotally connected to each other and then connected to the base 12; for example, the first bracket 14 and the second bracket 16 are compressed and deformed along the rotation axis A1 to make the first base The connecting portion 146 and the second base connecting portion 166 can enter the first sliding groove 124 and the second sliding groove 126; at this time, the first sliding groove 124 and the second sliding groove 126 are not limited to having entrances 124a and 126a. In addition, in practice, the direction of the first opening 150a is not limited to being parallel to the first extending direction 14a, and the second opening 170a is not limited to being parallel to the second extending direction 16a. For example, the direction of the second opening 170a is substantially perpendicular to the second extension direction 16a (as shown in FIG. 6 upwardly), or forms another angle with the second extension direction 16a.

In addition, in this embodiment, as shown in FIG. 2, the structure of the first sliding groove 124 and the second sliding groove 126 are integrated into a plastic part, and the plastic part can be embedded with the bottom plate 122 (for example, but not It is limited to a metal plate) combined with the bottom plate 122 or combined with the bottom plate 122 by injection molding and then riveting (for example, heating and molding a column passing through the bottom plate 122). In another embodiment, the first sliding groove 124 and the second sliding groove 126 are structurally integrated to the bottom plate 122, for example, a metal plate is used as the bottom plate 122, and a part of the plate is bent to form the first sliding groove 124 and the second sliding groove 124 The groove 126 (for example, but not limited to, realized by stamping).

In addition, in this embodiment, the first bracket 14 and the second bracket 16 have the same structure, which helps reduce the manufacturing cost of the key structure 1; however, in practice, it is not limited to this. For example, the first bracket 14 includes two C-shaped shaft holes, and the second bracket 16 correspondingly includes two shafts. The first bracket 14 and the second bracket 16 can also be pivotally connected by this configuration. Even if the structure of the first bracket 14 and the second bracket 16 are the same, the shaft holes can be used to extend in the same direction on the same bracket (for example, the first shaft 148 extends along the rotation axis A1 toward the lower left corner of FIG. 3, and the first C-shaped shaft hole 150 opens the shaft The direction also extends along the rotation axis A1 toward the lower left corner of FIG. 3, and extends in the same direction as the first shaft 148; similarly, the second shaft 168 extends along the rotation axis A1 toward the lower right corner of FIG. 4, and the second C-shaped shaft hole 170 The opening axis also extends along the rotation axis A1 toward the lower right corner of FIG. 4, and extends in the same direction as the second shaft 168), or is designed to extend toward each other with the shaft and the hole on the bracket (for example, the first shaft 148 extends along the rotation axis A1 Extending toward the lower left corner of FIG. 3, the opening axial direction of the first C-shaped shaft hole 150 is also along the rotation axis A1 but toward the upper right corner of FIG. 3, that is, extends toward the first shaft 148, and extends toward each other with the first shaft 148; Ground, for example, the second shaft 168 may extend along the axis of rotation A1 toward the lower right corner of FIG. 4, and the opening axis of the second C-shaped shaft hole 170 also extends along the axis of rotation A1 but toward the upper left corner of FIG. 4, that is, toward the second axis. 168 extends, and extends toward each other with the second shaft 168). In addition, in this embodiment, both sides of the first bracket 14 and the second bracket 16 are connected to the keycap 10 and the base 12, so in practice, the first bracket 14 and the second bracket 16 have to be separated from each other. Side pivot connection (for example, the first bracket 14 and the second bracket 16 are pivotally connected only through the first shaft 148 and the second C-shaped shaft hole 170, wherein the first bracket 14 and the second bracket 16 are both substantially in an L-shaped structure) And still have to maintain a certain degree of interlocking stability.

Please refer to Figure 7 to Figure 9. According to another embodiment, a key structure 3 and a key structure 1 structure Similar, the key structure 3 uses the symbol of the key structure 1 in principle. For other descriptions of the key structure 3, please refer directly to the relevant descriptions of the key structure 1 and its changes in the preceding text, and will not be repeated. In the key structure 3, the first bracket 34 includes a first half-shaft hole 342 and a first shaft portion 344 located at the two ends of the first U-shaped structure. The second bracket 36 includes a second half shaft hole 362 and a second shaft portion 364 located at the two ends of the second U-shaped structure. The first bracket 34 and the second bracket 36 are rotatably abutted in the second half-shaft hole 362 via the first shaft portion 344, and the second shaft portion 364 is rotatably abutted in the first half-shaft hole 342 to be opposed to The rotation axis A1 (shown in the figure by a chain line) is pivoted. The keycap 10 can move up and down relative to the base 12 via the first bracket 34 and the second bracket 36.

In addition, in this embodiment, the first half-shaft hole 342 has a semicircular groove surface 342a extending along the rotation axis A1; on the other hand, the semicircular groove surface 342a is equivalent to surrounding the rotation axis A1 Concave arc with a central angle of about 180 degrees. The first shaft portion 344 is directly connected to the first bracket body 142 in a direction perpendicular to the rotation axis A1 and includes an incomplete cylindrical surface 344a extending along the rotation axis A1. Correspondingly, the second half-shaft hole 362 has a semicircular groove surface 362a extending along the rotation axis A1; wherein the semicircular groove surface 362a is equivalent to a circular arc concave surface around the rotation axis A1 at a central angle of about 180 degrees. The second shaft portion 364 is directly connected to the second bracket body 162 in a direction perpendicular to the rotation axis A1 and includes an incomplete cylindrical surface 364a extending along the rotation axis A1. The first shaft portion 344 slidably contacts the semicircular groove surface 362a via the incomplete cylindrical surface 344a to rotatably abuts against the second half shaft hole 362; the second shaft portion 364 slidably contacts the semicircular groove via the incomplete cylindrical surface 364a The surface 342a is rotatably abutted against the first half-shaft hole 342.

The assembly method can be similar to that of the previous embodiment shown in FIG. 5, through the horizontal end-to-end assembly of the jig and automation equipment, the first shaft portion 344 is aligned with the second half shaft hole 362 and the second shaft portion 364 is aligned with the first half Axle hole 342 (for example, simply make the first bracket 34 and the second bracket 36 approximately horizontally), and then make the first bracket 34 and the second bracket 36 face the end of the first ㄇ-shaped structure toward the end of the second ㄇ-shaped structure Approach each other horizontally (that is, perpendicular to the axis of rotation A1), until the first shaft portion 344 slides over the end convex portion of the second half-shaft hole 362 (slightly deformed by force) to be locked into the second half-shaft hole 362 and The second shaft portion 364 slides over the first half shaft The end convex portion of the hole 342 (deformed by a slight force) is inserted into the first half-shaft hole 342 to complete the pivotal connection of the first bracket 34 and the second bracket 36.

In addition, in this embodiment, the opening directions of the first half-shaft hole 342 and the second half-shaft hole 362 are the same (for example, both face upward, as shown in FIGS. 8 and 9), so that the first bracket 34 and the second bracket 36 In principle, it is not easy to separate in the vertical direction after pivoting. The first half shaft hole 342 has a bottom 342b on the rotation axis A1, which can increase the structural strength of the first half shaft hole 342 and restrict the second shaft portion 364 on the rotation axis A1; the same applies to the second half shaft The hole 362 has a bottom portion 362b on the rotation axis A1, which can increase the structural strength of the second half-shaft hole 362 and restrict the first shaft portion 344 on the rotation axis A1. Among them, on the other hand, the bottoms 342b and 362b are realized by side wall structures extending perpendicular to the rotation axis A1. In addition, in this embodiment, the first bracket 34 and the second bracket 36 have the same structure, which helps reduce the manufacturing cost of the key structure 3; however, in practice, it is not limited to this. For example, the first bracket 34 includes two half-axis holes, and the second bracket 36 includes two shaft portions correspondingly. The first bracket 34 and the second bracket 36 can also be arranged and pivotally connected by this configuration. In addition, in practice, the first shaft portion 344 may also be a cylinder, as shown in FIG. 10. The cylinder protrudes and extends along the rotation axis A1 and slidably contacts the second half-shaft hole 362. Similarly, the second shaft portion 364 may also be a cylinder, protruding and extending along the rotation axis A1 and slidingly contacting the first half-shaft hole 342.

The foregoing descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made in accordance with the scope of the patent application of the present invention shall fall within the scope of the present invention.

14: The first bracket

14a: first extension direction

142: The first bracket body

144: The first keycap connection part

146: First base connection part

148: first axis

150: The first C-shaped shaft hole

150a: first opening

150b: bottom

A1: Rotation axis

Claims (15)

A key structure includes: a key cap; a base disposed under the key cap; a first bracket connected between the key cap and the base, the first bracket having a first shaft; and a second A bracket is connected between the keycap and the base, the second bracket has a second C-shaped shaft hole, and the first bracket and the second bracket are clamped into the second C-shaped shaft hole via the first shaft To pivot relative to a rotation axis, the second C-shaped shaft hole has a second opening whose direction is perpendicular to the direction of the rotation axis. The keycap can pass through the first bracket and the first bracket. The two brackets move up and down relative to the base, wherein the second C-shaped shaft hole extends along the rotation axis and has a bottom on the rotation axis, and the second opening extends parallel to the direction of the rotation axis and penetrates the bottom. The button structure according to claim 1, wherein the second bracket includes a second keycap connecting portion and a second base connecting portion, and the second bracket is rotatable via the second keycap connecting portion and the keycap Connected, the second bracket is rotatably connected with the base via the second base connection portion, defining an extension direction from the second keycap connection portion to the second base connection portion, and the direction of the second opening is substantially parallel In the extension direction. The button structure according to claim 2, wherein the second base connecting portion is located between the second keycap connecting portion and the second C-shaped shaft hole. The button structure according to claim 3, wherein the first bracket includes a first keycap connecting portion and a first base connecting portion, and the first bracket is rotatable via the first keycap connecting portion and the keycap Connected, the first base connecting portion is located between the first keycap connecting portion and the first shaft. The button structure according to claim 4, wherein the first bracket and the second bracket pass through the A shaft and the second C-shaped shaft hole are connected to form a V-shaped structure. The button structure according to claim 2, wherein the base includes a chute, the chute has an entrance, and the second bracket is slidably disposed in the chute via the second base connection portion to be rotatable with the base connection. The button structure according to claim 1, wherein the second bracket includes a second keycap connecting portion and a second base connecting portion, and the second bracket is rotatable via the second keycap connecting portion and the keycap Connected, the second bracket is rotatably connected with the base via the second base connection portion, defining an extension direction from the second keycap connection portion to the second base connection portion, and the direction of the second opening is substantially vertical In the extension direction. The button structure according to claim 1, wherein the first bracket includes a first C-shaped shaft hole, the second bracket includes a second shaft, and the first bracket and the second bracket are clamped in through the first shaft The second C-shaped shaft hole and the second shaft is inserted into the first C-shaped shaft hole to be pivotally connected with respect to the rotation axis, the first C-shaped shaft hole has a first opening, and the first opening Towards the second bracket. The button structure according to claim 8, wherein the first bracket and the second bracket have the same structure. A key structure includes: a key cap; a base arranged under the key cap; a first bracket connected between the key cap and the base and has a first ㄇ-shaped structure, the first bracket including a The first keycap connecting portion, a first half-shaft hole and a first shaft portion, the first bracket is rotatably connected to the keycap via the first keycap connecting portion, and the first shaft portion is located at the first One end of the ㄇ-shaped structure, the first half-shaft hole is located at the other end of the first ㄇ-shaped structure; and a second bracket connected between the keycap and the base and has a second ㄇ-shaped structure, The second bracket includes a second keycap connecting portion, a second shaft portion and a second half shaft hole, the second bracket It is rotatably connected to the keycap via the second keycap connecting portion, the second half-shaft hole is located at one end of the second ㄇ-shaped structure, and the second shaft portion is located at the other end of the second ㄇ-shaped structure , The first bracket and the second bracket rotatably abut against the second half-shaft hole via the first shaft portion, and the second shaft portion rotatably abuts against the first half-shaft hole to face each other Pivotally connected to a rotation axis, the keycap can move up and down relative to the base via the first bracket and the second bracket, wherein the first half shaft hole and the second half shaft hole both extend along the rotation axis And there is a bottom on the rotation axis, and the opening directions of the first half shaft hole and the second half shaft hole along the rotation axis are opposite. The button structure according to claim 10, wherein the second half shaft hole has a semicircular groove surface extending along the rotation axis, and the second half shaft hole slidably contacts the first shaft with the semicircular cylindrical surface unit. According to the key structure of claim 10, the first shaft portion is a cylinder and protrudes and extends along the rotation axis. The key structure of claim 10, wherein the first shaft portion includes an incomplete cylindrical surface extending along the rotation axis, and the first shaft portion slidingly contacts the second half-shaft hole with the incomplete cylindrical surface. The button structure according to claim 10, wherein the first bracket includes a first half-axis hole, the first half-axis hole is located at the other end of the first U-shaped structure, and the second bracket includes a second shaft Part, the second shaft part is located at the other end of the second U-shaped structure, the first bracket and the second bracket rotatably abut against the second half shaft hole via the first shaft part to be relative The rotating shaft is pivotally connected. The button structure according to claim 14, wherein the first bracket and the second bracket have the same structure.

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