TWI759945B - Keyswitch support connection structure and keyswitch structure therewith - Google Patents

Abstract

A keyswitch support connection structure incudes a bottom plate portion and a joining portion. The joining portion is firmly joined with a joining hole of a bottom plate portion, so as to form a support connection portion. In an embodiment, a cantilever plate extends upward from the joining hole. The joining portion also encapsulates a holding structure of the cantilever plate. In another embodiment, a protruding bridge portion is connected across to two sides of the joining hole. The joining portion also encapsulates the protruding bridge portion. In another embodiment, the joining portion has a wing portion, protruding out of a bottom surface of the bottom plate portion and extending parallel to the bottom surface. A keyswitch structure includes a base including the keyswitch support connection structure, a keycap, and two keyswitch supports. The two keyswitch supports are connected to and between the keycap and the base, in which one of the two keyswitch supports is rotatably connected to the support connection portion.

Description

Button bracket connection structure and button structure

The present invention relates to a key structure, in particular to a key support connecting structure of the key structure.

Generally, the keyboard keys of notebook computers usually use scissor foot brackets to provide keycap support and a lifting mechanism. In order to save space, the structural base plate is usually directly used to form the structure connected with the bracket, so that the bracket can be rotatably connected to the base plate. The bottom plate is generally formed by stamping a metal plate to form a connection structure, but the dimensional accuracy of the structure bent by this method is not easy to control, and the strength of the formed connection structure and the contact area with the bracket are limited by the thickness of the metal plate, which affects the stability of the button action. . This problem is exacerbated as the key size shrinks. Another method is to form a connection structure connected to the bracket on the base plate in a buried injection manner. In principle, the connection strength between the connection structure and the base plate is achieved by structurally fitting each other. When the size of the key is reduced, the size of the connection structure will be smaller, so that the connection strength between the connection structure and the bottom plate is difficult to maintain. The plastic material is usually softer than the metal bottom plate, so when the keycaps and brackets need to be replaced, the connecting structure will be pulled by the bracket and the bottom plate, which makes the plastic connecting structure easily deformed or even damaged and can no longer be used.

In view of the problems in the prior art, one objective of the present invention is to provide a key bracket connection structure, which utilizes an upwardly extending cantilever plate to increase the structural bonding strength.

A key support connection structure according to the present invention includes a bottom plate portion, a cantilever plate and a joint portion. The bottom plate portion has a coupling hole, and the cantilever plate extends upward from the coupling hole and has a clamping structure. The coupling portion and the coupling hole are fixedly fitted with each other and cover the clamping structure, and the coupling portion and the bottom plate portion are jointly formed or a bracket connecting portion is independently formed by the coupling portion. Among them, the cantilever plate itself can increase and The contact area of the joint portion and the holding structure can increase the degree of interference with the joint portion structure, both of which can increase the joint strength of the joint portion with the bottom plate portion and the cantilever plate, which is beneficial to maintain the bracket connection portion. structure is stable.

Another object of the present invention is to provide a key support connecting structure, which utilizes wings protruding from the bottom plate and extending parallel to the bottom plate to increase the structural bonding strength.

A key support connection structure according to the present invention includes a bottom plate portion and a joint portion. The bottom plate portion has a bottom surface, an upper surface opposite to the bottom surface, and a bonding hole penetrating the bottom surface and the upper surface. The coupling portion and the coupling hole are fixedly fitted to each other. The joint portion has a wing portion protruding from the bottom surface and extending parallel to the bottom surface. The joint portion and the bottom plate portion are jointly formed or the joint portion independently forms a bracket connecting portion located on the upper surface side. Wherein, the wing portion can increase the degree of structural interference between the joint portion and the bottom plate portion, and also increase the joint strength of the joint portion and the bottom plate portion, which is beneficial to maintain the structural stability of the bracket connecting portion.

Another object of the present invention is to provide a key support connecting structure, which utilizes an upwardly extending cantilever plate or a protruding bridge portion spanning the coupling hole to increase the structural coupling strength.

A key support connecting structure according to the present invention includes a bottom plate portion, a coupling structure and a coupling portion. The bottom plate portion has a coupling hole. The binding structure is disposed in the binding hole. The combining structure includes at least one cantilever plate or at least one protruding bridge portion, the cantilever plate extends upward from the combining hole and has a clamping structure, and the protruding bridge portion is connected across the two sides of the combining hole. The coupling portion and the coupling hole are fixedly fitted with each other and cover the at least one cantilever plate or at least the at least one protruding bridge portion. The joint portion includes two hook groove portions, and two opposite inner concave wall surfaces of the two hook groove portions jointly define an axial groove to form a bracket connecting portion. Wherein, the cantilever plate itself can increase the contact area with the joint part, and the clamping structure can increase the degree of interference with the joint part structure, both of which can increase the combination of the joint part with the bottom plate part and the cantilever plate The strength is conducive to maintaining the structural stability of the bracket connecting part. The protruding bridge portion itself can also increase the contact area with the joint portion. The structural arrangement of the protruding bridge portion across the joint hole can increase the structural strength of the protruding bridge portion and increase the protruding bridge portion. The bonding strength of the connecting portion and the connecting portion is beneficial to maintain the structural stability of the connecting portion of the bracket.

Another object of the present invention is to provide a key structure with the structure of the aforementioned key support connecting structure, which can increase the joint strength of the joint portion and the bottom plate portion.

A key structure according to the present invention includes a base, a key cap, a first key support, and a second key support. The base includes the structure as the aforementioned button bracket connection structure. The keycap is arranged on the base. The first key support and the second key support are connected between the key cap and the base, and the key cap can move vertically relative to the base via the first key support and the second key support. The first button bracket is rotatably connected with the bracket connecting portion. Wherein, the button bracket connection structure utilizes a cantilever plate extending upward from the bottom plate portion or the wing portion of the joint portion to increase the joint strength of the joint portion and the bottom plate portion, which is beneficial to maintain the structural stability of the bracket connecting portion.

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: Key structure

12: Keycaps

14: The first button bracket

142: base connector

16: Second button bracket

162: base connector

18: Base

18a, 18b: Bracket connection part

18c: Chute

18d: Opening

180a, 180a', 180b: Button bracket connection structure

182, 182', 182", 183, 183a: Bottom plate

1822, 1822', 1822", 1832, 1834: binding holes

1822a, 1822b, 1822c, 1822d, 1834a: side

1822e: Medium hole

1822f: side hole

1824, 1825: Bottom surface

1826, 1827: Upper surface

1828: Binding holes

1828a, 1828c: side holes

1828b: Medium hole

1830, 1830a: convex bridge

1830b: Top Surface

184, 184', 184", 185, 185a: Cantilever plate

184a: Fixed end

184b: free end

184c, 184d: outer edge

1842, 1842a, 1842b, 1852: Holder structure

186,187: Joints

1862, 1874: Buried Section

1864, 1872: Hook groove part

1864a: Bottom

1864b: Walls

1866, 1876: Wings

1868, 1878: Ribs

1872a: Contact Surfaces

188: Joint

1881a, 1881b: Hook groove part

1881c, 1881d: Bottom

1882: Embedding Department

1884: Wings

1886: Shaft slot

1888: Sidewalls

D1: first direction

D2: Second direction

Dv: vertical direction

R1, R2: Rotation axis

FIG. 1 is an exploded view of a key structure according to a first embodiment.

FIG. 2 is an enlarged view of the circle A in FIG. 1 .

FIG. 3 is an exploded view of the base in FIG. 2 .

FIG. 4 is a cross-sectional view of the base along the line X-X in FIG. 2 .

FIG. 5 is a cross-sectional view of the base along the line Y-Y in FIG. 2 .

FIG. 6 is an enlarged view of the circle B in FIG. 1 .

FIG. 7 is an exploded view of the base in FIG. 6 .

FIG. 8 is a cross-sectional view of the base in FIG. 6 along the line Z-Z.

FIG. 9 is a cross-sectional view of the base along the line W-W in FIG. 6 .

10 is a schematic diagram of a base cantilever plate according to a second embodiment.

11 is a schematic diagram of a base cantilever plate according to a third embodiment.

12 is a schematic diagram of a base cantilever plate according to a fourth embodiment.

FIG. 13 is a schematic diagram of a connection structure of a button bracket according to a fifth embodiment.

FIG. 14 is an exploded view of the connection structure of the key support in FIG. 13 .

FIG. 15 is a cross-sectional view taken along the line V-V in FIG. 13 .

16 is a cross-sectional view of a key support connection structure according to a sixth embodiment.

FIG. 17 is a cross-sectional view of a key bracket connection structure according to a seventh embodiment.

18 is a cross-sectional view of a key support connection structure according to an eighth embodiment.

See Figure 1. A key structure 1 according to a first embodiment includes a key cap 12 , a first key support 14 , a second key support 16 and a base 18 . The key cap 12 is disposed on the base 18 , and the first key support 14 And the second key support 16 is connected between the key cap 12 and the base 18, so that the key cap 12 can move vertically relative to the base 18 via the first key support 14 and the second key support 16 (or parallel to the vertical direction Dv (with Double-headed arrows are indicated in the figure) move). The base 18 includes two bracket connecting portions 18a and two bracket connecting portions 18b, the first button bracket 14 is rotatably and slidably connected to the base 18 via the bracket connecting portion 18a, and the second button bracket 16 is rotatably and slidably connected via the bracket connecting portion 18b. Rotationally connected to the base 18 .

Please also refer to Figures 2 to 5. For the bracket connecting portion 18 a to which the first button bracket 14 is connected, the base 18 includes a bottom plate portion 182 , a cantilever plate 184 and a joint portion 186 . The first key bracket 14 is rotatably and slidably connected to the bottom plate portion 182 of the base 18 via the bracket connecting portion 18a, and the second key bracket 16 is rotatably connected to the bottom plate portion 182 of the base 18 via the bracket connecting portion 18b. The bottom plate portion 182 has a coupling hole 1822 , the cantilever plate 184 extends upward from the coupling hole 1822 and has a clamping structure 1842 (shown as a chain frame in FIGS. 3 and 5 ), and the coupling portion 186 and the coupling hole 186 are fixed and embedded with each other The cladding retaining structure 1842 is incorporated. The joint portion 186 and the bottom plate portion 182 together form the bracket connecting portion 18a. The combination of the bottom plate portion 182 , the cantilever plate 184 and the joint portion 186 can be regarded as a key support connecting structure 180 a for connecting with the first key support 14 connect.

In the first embodiment, the cantilever plate 184 has a fixed end 184a and a free end 184b, and the cantilever plate 184 is fixed to the bottom plate portion 182 by the fixed end 184a. The holding structure 1842 is a necked portion of the cantilever plate 184 and is located between the fixed end 184a and the free end 184b. The necked portion can increase the contact area between the joint portion 186 and the cantilever plate 184 and the degree of structural interference with the joint portion 186 . The bottom plate portion 182 and the cantilever plate 184 are formed by the same stamping part, for example, a metal plate is punched to form the bottom plate portion 182 and the cantilever plate 184 at the same time. In terms of structural logic, the cantilever plate 184 is equivalent to bending and extending upward from a part of the bottom plate portion 182 . form. The joint portion 186 is an injection molded part, for example, embedded in plastic injection molding (embedded in the bottom plate portion 182 together with the cantilever plate 184 and injected with plastic).

The bracket connecting portion 18a has a sliding groove 18c. The chute 18c extends parallel to the bottom plate portion 182 along a first direction D1 (indicated by a double-headed arrow in the figure), and has an opening 18d in the first direction D1, and the opening 18d is used to connect a base of the first button bracket 14 The portion 142 (represented by a chain loop in FIG. 4 ) enters the chute 18c for sliding connection with the bracket connecting portion 18a in the first direction D1. The base connecting portion 142 of the first button bracket 14 can also rotate in the chute 18c around the axis R1 (represented by a chain line and represented by a cross in FIG. 1 ) around one of the vertical directions D1 and Dv. 4) rotation, the rotation axis R1 is parallel to a second direction D2 (represented by a double-headed arrow in the figure). In addition, the coupling hole 1822 has two opposite sides 1822a, 1822b in the first direction D1, and the cantilever plate 184 extends upward from the side 1822a of the two sides 1822a, 1822b that is close to the opening 18d. From the perspective of FIG. 4 , the opening 18d faces right, the cantilever plate 184 extends upward from the right side of the coupling hole 1822 , and the center of the first button bracket 14 is located on the left side of the bracket connecting portion 18a . When the first button bracket 14 is moved upward (for example, when the keycap 12 moves upward to drive the first button bracket 14 ), when the base connecting portion 142 pulls the joint portion 186 upward and leftward, the aforementioned structural configuration can increase the resistance of the cantilever plate 184 to This pulling force (ie, increases the overall structural strength of the key support connecting structure 180a).

The joint portion 186 includes an embedded portion 1862 , a hook groove portion 1864 , a wing portion 1866 and a rib portion 1868 . The bottom plate portion 182 has a bottom surface 1824 and an upper surface 1826 opposite to the bottom surface 1824 in the vertical direction Dv. The coupling hole 1822 penetrates the bottom surface 1824 and the upper surface 1826 . The buried portion 1862 fills the bonding hole 1822, and is coplanar with the upper surface 1826; the embedded portion 1862 is integrally connected to the wing portion 1866 downward, and upwardly integrally connected to the bottom end 1864a of the hook groove portion 1864 and the bottom of the rib portion 1868. The hook groove portion 1864 is L-shaped upside down, and the hook groove portion 1864 and the upper surface 1826 together form the bracket connecting portion 18a, so the bracket connecting portion 18a is located on the upper surface 1826 side. The sliding groove 18c of the bracket connecting portion 18a is jointly defined by the inverted L-shaped wall surface 1864b of the hooking groove portion 1864 of the joint portion 186 and the upper surface 1826 of the bottom plate portion 182 adjacent to the first direction D1; There is an opening 18d in one direction D1, while the sliding groove 18c and the hook groove portion 1864 are also open on opposite sides of the second direction D2. Wings 1866 protrude from bottom surface 1824 and cover a portion of bottom surface 1824 (or extend over bottom surface 1824). The rib 1868 is located on the back side of the hook groove portion 1864 (ie, the opposite side of the opening 18d), the width of the rib portion 1868 can be selectively not greater than the width of the hook groove portion 1864 or the width of the joint portion 186, and the rib portion 1868 is parallel to the first direction D1 The rib portion 1868 extends outwardly beyond the side edge 1822 b of the coupling hole 1822 , and the rib portion 1868 at least partially extends to cover the upper surface 1826 of the bottom plate portion 182 .

The wings 1866 not only help to improve the bonding strength of the joint part 186 and the bottom plate part 182 , but also help to resist the joint part 186 from disengaging from the bottom plate part 182 (for example, the joint part 186 is upward on the base connecting part 142 of the first button bracket 14 ) , when pulling to the left). In order to prevent the joint portion 186 from being partially deformed or turned upward when pulled by an external force, the rib portion 1868 helps to increase the overall structural strength of the joint portion 186, so that the joint portion 186 can press against the joint hole 1822 with the rib portion 1868 when the joint portion 186 is subjected to an upward external force. The side edge 1822b and the partial upper surface 1826 of the adjacent side also help to resist the disengagement of the joint portion 186 from the bottom plate portion 182 . Furthermore, the bottom end 1864a of the hook groove portion 1864 at least partially extends to cover the upper surface 1826 of the bottom plate portion 182 beside the coupling hole 1822; in this way, the coupling portion 186 can be hooked before being deformed or turned over by an upward external force. The bottom end 1864 a of the groove portion 1864 abuts against the hole wall of the coupling hole 1822 and the partial upper surface 1826 adjacent to the hole wall, and resists the coupling portion 186 from disengaging from the bottom plate portion 182 .

In addition, in the first embodiment, the wings 1866 are disposed on the portion of the bottom surface 1824 surrounding the coupling hole 1822 , that is, the wings 1866 extend from the coupling hole 1822 to the periphery and cover the bottom surface 1824 . Therefore, the wings 1866 extend on the bottom surface 1824 perpendicular to the rotational axis R1 (ie, parallel to the first direction D1 extension), can also extend parallel to the rotation axis R1 (ie, extend parallel to the second direction D2 ) on the bottom surface 1824 as required. In order to prevent the joint portion 186 from being partially deformed or turned upward when pulled by an external force, this structural configuration enables the wings 1866 to resist the disengagement of the joint portion 186 from the bottom plate portion 182 in all directions. But in practice it is not limited to this. For example, the wing portion 1866 only extends on the bottom surface 1824 parallel to the first direction D1. This structural configuration enables the joint portion 186 to abut against the partial bottom surface 1824 around the joint hole 1822 with the wing portion 1866 when an upward external force is applied. The resistance of the joint portion 186 to be disengaged from the bottom plate portion 182 has been increased. For another example, the wings 1866 are only parallel to the first direction D1 and extend on the bottom surface 1824 toward the opening 18d . This configuration can also increase the resistance of the joint 186 to disengage from the bottom plate 182 to a certain extent. In this embodiment, as shown in FIG. 5 , the contour of the vertical projection of the wing portion 1866 on the upper surface 1826 exceeds the contour of the vertical projection of the portion of the joint portion 186 upward beyond the bottom plate portion 182 on the upper surface 1826 .

Please refer to Figure 1, Figure 6 to Figure 9. For the bracket connecting portion 18b, the base 18 includes a joint portion 188, which independently forms the bracket connecting portion 18b. The bottom plate portion 182 has a coupling hole 1828 and two protruding bridge portions 1830 . The coupling hole 1828 extends along the first direction D1 , and the two protruding bridge portions 1830 respectively extend along the second direction D2 . The two protruding bridge portions 1830 are arranged at intervals along the first direction D1 and are higher than the upper surface 1826 of the base 18 . The two protruding bridge portions 1830 are connected across the two sides of the coupling hole 1828 to connect the coupling hole in the first direction D1 1828 is divided into three parts (ie in the vertical direction Dv). That is, the two protruding bridge portions 1830 divide the coupling hole 1828 into exposed side holes 1828 a , middle holes 1828 b , and side holes 1828 c in sequence along the first direction D1 , wherein the side holes 1828 a and the middle holes 1828 b pass through each other under the protruding bridge portion 1830 . The middle hole 1828b and the side hole 1828c pass through each other through another convex bridge portion 1830, and the embedded portion 1862 fills the side hole 1828a, the middle hole 1822b, the side hole 1822c and the two through regions. The coupling portion 188 and the coupling hole 1828 are fixedly fitted with each other and cover the two protruding bridge portions 1830 . The combination of the bottom plate portion 182 and the joint portion 188 can be regarded as a key support connecting structure 180 b for connecting with the second key support 16 .

In this embodiment, the shaft-shaped base connecting portion 162 of the second button bracket 16 (represented by a chain circle in FIG. 8 ) is pivotally connected with the connecting portion 188 so as to be able to rotate about the axis R2 perpendicular to the vertical direction Dv. (with chain The line, shown in FIG. 1 and in FIG. 8 with a cross, rotates parallel to the axis of rotation R2), which is parallel to the second direction D2. The two protruding bridge portions 1830 are arranged in a direction perpendicular to the rotation axis R2 (and also perpendicular to the vertical direction Dv), and the connection interface between the protruding bridge portion 1830 and the coupling hole 1828 (shown in FIG. 7 with a dotted line frame) is not rectangular , and an arc shape, which can increase the inertia moment of the protruding bridge portion 1830 . If the outer sides of the two convex bridge portions 1830 are all closed, that is, there are no two-sided holes 1828a/1828c, when the joint portion 188 is pulled out by force, the stress is more likely to be concentrated around the middle hole 1828b, especially the two convex bridge portions 1830. Relative to the inner edge, the two protruding bridge portions 1830 are easily deformed due to high stress. Therefore, the disposition of the two-sided hole 1828a/1828c helps to locally disperse the stress from the periphery of the middle hole 1828b to the periphery of the two-sided hole 1828a/1828c; in addition, the width of the two-sided hole 1828a/1828c in the second direction D2 is not greater than that of the middle hole 1828b , so that the joint portion 188 can effectively disperse the stress to the two side holes 1828a/1828c when the joint portion 188 is pulled out. From the perspective of FIG. 8 , the center position of the second button bracket 16 is located on the right side of the bracket connecting portion 18b. When the second button bracket 16 is driven upward (for example, the keycap 12 moves upward to drive the second button bracket 16 ), when the base connecting portion 162 pulls the joint portion 188 upward and rightward, the aforementioned convex bridge with an arc-shaped connecting interface The portion 1830 can increase the resistance to the pulling force (ie, increase the overall structural strength of the key support connecting structure 180b).

The joint portion 188 includes two hook groove portions 1881 a / 1881 b , an embedded portion 1882 and a wing portion 1884 . The two hook grooves 1881a/1881b are spaced and opposed in the first direction D1, and the two opposite inner concave wall surfaces of the two hook grooves 1881a/1881b together define a shaft groove 1886, and the shaft groove 1886 extends along the second direction D2 (rotation axis R2). , the shaft groove 1886 is at least partially open in the second direction D2 (rotation axis R2) and the vertical direction Dv, and the size of the shaft groove 1886 at the opening in the vertical direction Dv, that is, the distance between the free ends of the hook grooves 1881a/1881b, slightly It is smaller than the diameter of the shaft-like structure of the base connecting portion 162 of the second key bracket 16 . The two bottom ends 1881c/1881d of the two hook grooves 1881a/1881b are at least partially extended to cover and fit to the upper surface 1826; in this way, the two bottom ends 1881c/1881d of the two hook grooves 1881a/1881b can be pushed up when subjected to an upward external force. It abuts against the hole wall of the combination hole 1828 (including the side hole 1828 a , the middle hole 1828 b , and the side hole 1828 c ) and the partial upper surface 1826 adjacent to the hole wall, and resists the combination portion 186 being detached from the bottom plate portion 182 . The buried portion 1882 fills the bonding hole 1828 . Wings 1884 protrude from the bottom surface 1824 and cover a portion of the bottom surface 1824 (or extend over the bottom surface 1824). The structure and function of the wing portion 1884 of the joint portion 188 are the same as those of the aforementioned wing portion 1866 of the joint portion 186 ; as shown in FIGS. 7 to 9 , in this embodiment, the vertical projection of the wing portion 1884 on the upper surface 1826 is completely contoured The outline of the vertical projection of the portion beyond the joint portion 188 upward beyond the bottom plate portion 182 on the upper surface 1826 . Therefore, for other descriptions of the wings 1884 of the coupling portion 188 , please refer to the above-mentioned related descriptions about the wings 1866 of the coupling portion 186 and its modifications, and will not be repeated. The shaft groove 1886 is rotatably connected to the base connecting portion 162 ; in other words, the joint portion 188 independently realizes the bracket connecting portion 18b through the shaft groove 1886 . In addition, the joint portion 188 includes a side wall 1888 on the rotation axis R2 and beside the shaft groove 1886 to connect the two hook groove portions 1881a/1881b, which can increase the structural stability between the two hook groove portions 1881a/1881b, and together strengthen the The structural strength of the shaft groove 1886 can also improve the stability of the pivot connection between the joint portion 188 and the base connecting portion 162 .

In addition, in this embodiment, as shown in FIG. 3 , the cantilever plate 184 has an L-shaped neck extending from the bottom plate portion 182 and bending upward, and a head connected to one end of the L-shaped neck. The step difference formed by different widths can be regarded as a necking portion (as the holding structure 1842 ) in terms of structure. In practice, the necking portion can also be implemented in other structures. For example, as shown in FIG. 10 , according to a second embodiment, the necked portion of the cantilever plate 184 ′ is formed by notches on both sides of the cantilever plate 184 ′ to serve as the holding structure 1842 a (shown as a chain frame in the figure) ). In addition, in FIG. 10, the cantilever plate 184' has two opposite outer edges 184c, 184d from the fixed end to the free end (ie, in the direction perpendicular to its extending direction), and the coupling hole 1822' of the bottom plate portion 182' is perpendicular to the vertical direction. There are two opposite sides 1822c, 1822d in the direction of the first direction D1, and the two outer edges 184c, 184d are directly connected to the two sides 1822c, 1822d respectively. This structural feature helps to increase the structural strength of the cantilever plate 184' itself. For another example, as shown in FIG. 11 , according to a third embodiment, a cantilever plate 184 ″ includes an inverted trapezoid structure, the width of which decreases from top to bottom, so the entire inverted trapezoid structure can be regarded as a necked portion in terms of structure, It is used as a clamping structure 1842b (shown in a chain frame in the figure). In addition, in FIG. 11, the outline of the coupling hole 1822" of the bottom plate portion 182" is the same as the outline of the cantilever plate 184" (for example, a direct Punching without clearance), this structural feature can reduce the coupling hole 1822" and the coupling part (not shown in FIG. 11, refer to the coupling part 18a/18b of FIG. 1 to FIG. 9) to occupy the plate surface of the base 18 The volume of the joint 18a/18b is reduced, the interference problem between the joint 18a/18b and other components is reduced, the utilization rate of the base plate 18 is improved, and the structural strength of the cantilever plate 184" itself can be increased.

In addition, in the first embodiment, as shown in FIG. 3 , the clamping structure 1842 has a necked portion to increase the bonding strength with the connecting portion 186 , but it is not limited in practice. For example, as shown in FIG. 12 , according to a third embodiment, the holding structure 1852 of the cantilever plate 185 includes a through hole (penetrating the cantilever plate 185 parallel to the bottom plate 183 ), and the holding structure 1852 increases its and ( The bonding strength of the bonding portion 186 of FIG. 3 . Also, this perforation can also be applied to the head of the cantilever plate 184 (as shown by the dotted line in FIG. 3 ). In addition, in FIG. 12 , the outline of the cantilever plate 185 and the outline of the coupling hole 1832 of the bottom plate portion 183 help to increase the structural strength of the cantilever plate 185 itself.

In addition, in the first embodiment, as shown in FIG. 2 and FIG. 4 , the joint portion 186 and the bottom plate portion 182 together form the bracket connecting portion 18a, but the practice is not limited to this. For example, in the fifth embodiment shown in FIG. 13 to FIG. 15 , the coupling part 187 has a hook groove part 1872 , an embedded part 1874 and a wing part 1876 connected up and down, and the bottom of the hook groove part 1872 has a contact surface 1872 a In this way, the contact surface 1872a is at least partially in close contact with the upper surface 1827 of the bottom plate portion 183a. The embedded portion 1874 fills the bonding hole 1834 of the bottom plate portion 183a. The wings 1876 closely fit the bottom surface 1825 of the bottom plate 183a. The projection of the contact surface 1872 on the vertical direction Dv is located within the projection of the wing portion 1876 on the vertical direction Dv; as shown in FIG. 14 and FIG. 15 , in this embodiment, the vertical projection of the wing portion 1876 on the upper surface 1827 The contour completely exceeds the contour of the vertical projection of the portion of the joint portion 187 upward beyond the bottom plate portion 183a on the upper surface 1827 . In this way, even though the wings 1876 are thin, they can still pass through a large distribution area to increase the resistance to the detachment of the joint 187 from the bottom plate 183a. In addition, in this example, the joint portion 187 independently forms the bracket connection portion 18a (wherein, the combination of the bottom plate portion 183a, the cantilever plate 185a and the joint portion 187 can be regarded as a key bracket connection structure 180a'). In addition, the cantilever plate 185a extends upward from the coupling hole 1834 of the bottom plate portion 183a in the first direction D1 away from the side edge 1834a of the hook groove portion 1872 . The joint portion 187 further includes a rib portion 1878 extending along the first direction D1 on the back side thereof. The rib portion 1878 is attached to the upper surface 1827 of the bottom plate portion 183a. Section 187 Fill Knot The embedded portion 1874 of the closing hole 1834 is connected, but the rib portion 1878 and a part of the wing portion 1876 jointly hold the bottom plate portion 183a up and down.

In addition, in the first embodiment, the combination structure (including a cantilever plate 184) of the joint portion 186 (for forming the key support connecting structure 180a) and the bottom plate portion 182, and the joint structure (for forming the key support connecting structure 180b) The combination structure (including the two protruding bridge parts 1830 ) of the combination portion 188 and the bottom plate portion 182 is not the same; however, it is not limited in practice. For example, for the bracket connecting portion 18a, the cantilever plate 184 and the wing portion 1866 of the joint portion 186 can be implemented alternatively. For another example, for the bracket connecting portion 18a, a structure such as a protruding bridge portion 1830 may be provided on the bottom plate portion 182 on the left side of the coupling hole 1822, and the coupling portion 186 also covers the structure. For another example, for the bracket connecting portion 18a, the cantilever plate 184 is removed and replaced with a structure such as the protruding bridge portion 1830 (crossing the coupling hole 1822), and the coupling portion 186 covers this structure. For another example, for the bracket connecting portion 18b, one or two protruding bridge portions 1830 are removed and replaced with a structure such as the cantilever plate 184 (or its modification) (respectively extending upward from both sides of the coupling hole 1828), and the coupling portion 188 wraps overwrite this structure.

Specifically, the application of the cantilever plates 184/184'/184"/185/185a of the above embodiments is not limited to the bracket connecting portion 18a or the joint portion 186/187 of the foregoing embodiments. The cantilever plates 184/184' /184"/185/185a can also be applied to the bracket connecting portion 18b or the joint portion 188 of FIGS. 6-9.

Please refer to FIG. 16 and FIG. 17 , which are cross-sectional views of the sixth and seventh embodiments, respectively, and the cross-sectional positions thereof correspond to the line Z-Z in FIG. 6 . In FIGS. 16 and 17 , most of the elements correspond to the embodiment in FIG. 8 , and elements and structures with the same element names or element numbers have the same or similar technical features, and will not be repeated here.

In FIG. 16 , the convex bridge part 1830 on the left side of FIG. 8 is replaced with one of the cantilever plates 184/184'/184"/185/185a, that is, the hook groove part 1881a and the embedded part 1882 still completely cover the convex bridge part on the right side. 1830, but the hook groove portion 1881b is changed to completely cover the left cantilever plate 184 (or one of 184'/184"/185/185a) in Fig. One) is bent and extended from the first direction D1 to the vertical direction Dv.

The structure disclosed in FIG. 16 enables the combination part 188 with two hook groove parts 1881a/1881b to be combined with the bottom plate part 182 through a cantilever plate 184 (or one of 184'/184"/185/185a) and a convex bridge part 1830 and the bracket connecting part 18b formed by the two hook groove parts 1881a/1881b of the joint part 188 can also rely on the cantilever plate 184 (or one of the 184'/184"/185/185a) and the protruding bridge part 1830 to jointly provide High-strength pull-out resistance.

Similarly, in FIG. 17 , the two protruding bridge portions 1830 of FIG. 8 are respectively replaced with one of the cantilever plates 184/184'/184"/185/185a, that is, the hook groove portion 1881a and the hook groove portion 1881b, plus The upper embedded portion 1882 completely covers the two cantilever plates 184 (or one of the two cantilever plates 184'/184"/185/185a) opposite to each other in FIG. 17, respectively. The two cantilever plates 184 (or 184'/184"/185/185a One of them) is respectively bent and extended from the first direction D1 to the vertical direction Dv.

The structure disclosed in FIG. 17 enables the combination part 188 with two hook groove parts 1881a/1881b to be combined with the bottom plate part 182 through the two cantilever plates 184 (or one of 184'/184"/185/185a), and the combination part The bracket connecting portion 18b formed by the two hook groove portions 1881a/1881b of the 188 can also rely on the two cantilever plates 184 (or one of the 184'/184"/185/185a) to jointly provide high-strength pull-out resistance.

Please refer to FIG. 18 , which is a cross-sectional view of the eighth embodiment, and its cross-sectional position corresponds to the line X-X in FIG. 2 . FIG. 18 is generally similar to the corresponding embodiment in FIG. 4 , the difference is that compared with FIG. 4 , the coupling hole 1822 (refer to FIG. 4 ) is further provided with a protruding bridge portion 1830 a (ie, equivalent to the protruding bridge portion 1830 in FIGS. 7 and 8 ) , the protruding bridge portion 1830a is connected across the two sides of the coupling hole 1822 to separate the coupling hole 1822 into two parts in the vertical direction Dv. That is, the protruding bridge portion 1830a divides the coupling hole 1822 into the exposed middle hole 1822e and the side hole 1822f in sequence along the first direction D1. 1862 fills the middle hole 1822e, the side hole 1822f and the through area. The extension center axis (ie, parallel to the vertical direction Dv) of the cantilever plate 184 is perpendicular to the top surface 1830b of the convex bridge portion 1830a. In this embodiment, the cantilever plate 184 is adjacent to the hook groove portion 1864, and the convex bridge portion 1830a is adjacent to the back side of the joint portion 186 and the rib portion 1868; if necessary, the cantilever plate 184 can also be changed to be close to the back side of the joint portion 186 and the rib portion 1868. Rib 1868, and bridge 1830a Instead, it is close to the hook groove portion 1864.

Furthermore, the wings 1866/1876/1884 of the above-mentioned embodiments, no matter whether they are attached to the bottom surface 1824/1825 or the upper surface 1826/1827, the larger the area of the wings 1866/1876/1884, the more resistant they are to upward movement to a certain extent. External force prevents the coupling portion 186 from being detached from the bottom plate portion 182/183a. However, the outer dimensions of the wings 1866/1876/1884 are too large, which will also crowd out the configuration of other components or backlight effects in the key structure 1. The design of the wings 1866/1876/1884 needs to consider the overall functional performance of the key structure 1, and Avoid interference with surrounding related components.

Although the key support connecting structures 180a/180a'/180b of the foregoing embodiments focus on resistance to external pulling force, the modern automated assembly process may adopt various combinations of the foregoing when installing the first key support 14 and/or the second key support 16. Interference assembly of parts 186/187188 (hook and groove parts 1864/1872/1881a/1881b). The multiple arrangement of the protruding bridge portion 1830/1830a, the rib portion 1868/1878, the bottom of the upper hook groove portion 1872, the wing portion 1866/1876/1884, the cantilever plate 184/184'/184"/185/185a of the foregoing embodiments, It also helps the key support connecting structure 180a/180a'/180b to strengthen the structural resistance of the key support connecting structure 180a/180a'/180b when the first key support 14 and/or the second key support 16 is assembled.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

180a: Button bracket connection structure

182: Bottom plate

1822: Binding holes

1822a, 1822b: side

1826: Upper Surface

184: Cantilever Plate

184a: Fixed end

184b: free end

1842: Card Holder Structure

186: Joint

1862: Embedding Department

1864: Hook groove part

1864a: Bottom

1864b: Walls

1866: Wings

1868: Ribs

D1: first direction

D2: Second direction

Dv: vertical direction

Claims (30)

A key support connection structure, comprising: a bottom plate portion with a combination hole; a cantilever plate extending upward from the combination hole and having a clamping structure, the clamping structure being a neck portion of the cantilever plate; and a The joint portion is fixedly fitted with the joint hole and covers the holding structure. The joint portion and the bottom plate portion are jointly formed or the joint portion independently forms a bracket connecting portion. The button bracket connection structure according to claim 1, wherein the cantilever plate has a fixed end and a free end, the cantilever plate is fixed to the bottom plate by the fixed end, and the clamping structure is located at the fixed end and the free end between. The key support connecting structure according to claim 1, wherein the support connecting portion has a sliding groove, the sliding groove extends in a first direction parallel to the bottom plate portion and has an opening for a key support to enter the sliding groove The slot is slidably connected with the bracket connecting portion in the first direction. The key support connection structure as claimed in claim 3, wherein the coupling hole has two opposite sides in the first direction, and the cantilever plate extends upward from one of the two sides which is close to the opening. The key support connection structure of claim 4 further comprises a protruding bridge portion connected across the two sides of the coupling hole, the coupling portion covering the protruding bridge portion. The button bracket connection structure of claim 3, wherein the cantilever plate has two opposite outer edges from the fixed end to the free end, the coupling hole has two opposite sides in a direction perpendicular to the first direction, the The two outer edges are connected with the two side edges. The key support connection structure of claim 3, wherein the joint portion has a rib extending parallel to the first direction, the rib extending at least partially to the upper surface of the bottom plate portion. The button bracket connection structure of claim 1, wherein the bottom plate portion has a bottom surface and an upper surface opposite to the bottom surface, the bracket connection portion is located on the side of the upper surface, and the joint portion has A wing portion protrudes from the bottom surface and extends on the bottom surface parallel to the bottom surface. As claimed in claim 8, the key support connecting structure, a key support is rotatably connected to the support connecting portion with respect to a rotation axis, wherein the wing portion is on the bottom surface in a direction perpendicular to the rotation axis Protruding beyond the coupling hole. As claimed in claim 8, a button bracket connection structure, a button bracket is rotatably connected to the bracket connection portion relative to a rotation axis, wherein the wing portion is on the bottom surface in a direction parallel to the rotation axis Protruding beyond the coupling hole. The button bracket connection structure according to claim 8, wherein the joint portion has a contact surface closely abutting the upper surface, and the contact surface is located on the wing portion on the projection of a vertical direction perpendicular to the upper surface. within the vertical projection. The button bracket connection structure according to claim 1, wherein the joint part is an injection molded part. The button bracket connection structure according to claim 1, wherein the bottom plate portion and the cantilever plate are formed by the same stamping part. A key support connection structure, comprising: a bottom plate part with a combination hole; a cantilever plate extending upward from the combination hole and having a holding structure, the holding structure is a through hole, parallel to the bottom plate part penetrating the cantilever a plate; and a joint part, which is fixedly fitted with the joint hole and covers the clamping structure, the joint part and the bottom plate part form together or the joint part independently forms a bracket connecting part. A key support connection structure, comprising: a bottom plate portion, the bottom plate portion has a bottom surface, an upper surface opposite to the bottom surface, and a combination hole penetrating the bottom surface and the upper surface; and a combination portion, and The combining holes are fixedly fitted with each other, and the combining portion has a wing portion protruding from the bottom The surface extends parallel to the bottom surface on the bottom surface, the joint part and the bottom plate part form together or the joint part independently forms a bracket connecting part, which is located on the upper surface side, wherein the wing part is perpendicular to the upper surface. The projected outline at least partially exceeds the outline of the vertical projection of the portion of the joint portion that extends upward from the bottom plate portion on the upper surface. The button bracket connection structure of claim 15, wherein a button bracket is rotatably connected to the bracket connection portion relative to a rotation axis, wherein the wing portion is on the bottom surface in a direction perpendicular to the rotation axis Protruding beyond the coupling hole. The button bracket connection structure of claim 15, wherein a button bracket is rotatably connected to the bracket connection portion relative to a rotation axis, wherein the wing portion is on the bottom surface in a direction parallel to the rotation axis Protruding beyond the coupling hole. The button bracket connection structure of claim 15, wherein the bottom plate portion comprises a cantilever plate, the cantilever plate extends upward from the coupling hole, the cantilever plate has a holding structure, and the joint portion covers the holding structure, The cantilever plate has a fixed end and a free end, the cantilever plate is fixed to the bottom plate by the fixed end, and the clamping structure is a necked portion of the cantilever plate, located between the fixed end and the free end. The button bracket connection structure of claim 15, wherein the bottom plate portion comprises a cantilever plate, the cantilever plate extends upward from the coupling hole, the cantilever plate has a holding structure, and the joint portion covers the holding structure, The holding structure is a through hole, which runs through the cantilever plate parallel to the bottom plate portion. The button bracket connection structure of claim 15, wherein the bottom plate portion comprises a cantilever plate, the cantilever plate extends upward from the coupling hole, the cantilever plate has a holding structure, and the joint portion covers the holding structure, The bracket connecting portion has a sliding slot, which extends parallel to the bottom plate portion in a first direction and has an opening for a button bracket to enter the sliding slot to connect with the bracket connecting portion in the first direction Slide to connect. The button bracket connection structure as claimed in claim 20, wherein the coupling hole is on the first side There are two opposite sides upward, and the cantilever plate extends upward from the one of the two sides which is close to the opening. The key support connecting structure of claim 21 further comprises a protruding bridge portion connected across both sides of the coupling hole, the coupling portion covering the protruding bridge portion. The button bracket connection structure of claim 20, wherein the cantilever plate has two opposite outer edges from the fixed end to the free end, the coupling hole has two opposite sides in a direction perpendicular to the first direction, the The two outer edges are connected with the two side edges. The key support connection structure as claimed in claim 20, wherein the joint portion has a rib extending parallel to the first direction. A key support connection structure, comprising: a bottom plate portion with a combination hole; a combination structure disposed in the combination hole, the combination structure comprising a cantilever plate and a convex bridge portion, the cantilever plate extending upward from the combination hole and There is a clamping structure, the protruding bridge portion is connected to both sides of the coupling hole across the bridge, the extension center axis of the cantilever plate is perpendicular to the top surface of the protruding bridge portion; and a coupling portion is fixedly embedded with the coupling hole. Combining and covering the cantilever plate and the protruding bridge portion, the joint portion includes two hook groove portions, and two opposite inner concave wall surfaces of the two hook groove portions jointly define an axial groove to form a bracket connecting portion. A key support connection structure, comprising: a bottom plate portion with a coupling hole; a coupling structure disposed in the coupling hole, the coupling structure comprising two convex bridge portions protruding from an upper surface of the bottom plate portion and along a first Arranged at intervals in one direction to divide the coupling hole into three parts in the first direction; and a coupling portion fixedly fitted with the coupling hole and covering the two convex bridge portions, and the coupling portion includes two hook groove portions , the two hook grooves are spaced and opposed to each other in the first direction, and the two opposite inner concave wall surfaces of the two hook grooves jointly define an axial groove to form a bracket connecting part. A key support connection structure, comprising: a bottom plate part with a combination hole; a combination structure arranged in the combination hole, the combination structure includes a convex bridge part, the convex bridge part is connected across the two sides of the combination hole , the connection interface between the protruding bridge portion and the combining hole is arc-shaped; and a combining portion is fixedly fitted with the combining hole and covers the protruding bridge portion, the combining portion includes a two hook groove portion, the two hook groove portion The two opposite concave wall surfaces jointly define a shaft groove to form a bracket connecting portion. A key support connection structure, comprising: a bottom plate part with a combination hole; a combination structure arranged in the combination hole, the combination structure includes a cantilever plate and a convex bridge part, arranged at intervals along a first direction, the cantilever The plate extends upwards from the coupling hole and has a clamping structure, the protruding bridge portion is connected across the two sides of the coupling hole; and a coupling portion is fixedly fitted with the coupling hole and covers the cantilever plate and the convex plate In the bridge part, the joint part includes two hook groove parts, the two hook groove parts are opposite to each other in the first direction, and two opposite inner concave wall surfaces of the two hook groove parts jointly define an axial groove to form a bracket connecting part. A key support connection structure, comprising: a bottom plate part with a combination hole; a combination structure arranged in the combination hole, the combination structure includes two cantilever plates, which are spaced along a first direction on opposite sides of the combination hole , the cantilever plate extends upward from the combination hole and has a clamping structure, the two sides of the cantilever plate have two opposite outer edges; The joint portion includes two hook groove portions, the two hook groove portions are spaced opposite to each other in the first direction, and two opposite inner concave wall surfaces of the two hook groove portions jointly define an axial groove to form a bracket connecting portion. A key structure, including: a base, comprising the key support connection structure according to any one of claims 1 to 29; a key cap, disposed on the base; a first key support, connected to the key cap and the base between the first key support and the support connecting portion; and a second key support connected between the key cap and the base, the key cap via the first key support and the second key support Vertically movable relative to the support base.

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