CN201174336Y - key structure - Google Patents

Abstract

The utility model discloses a key structure, which comprises a key cap, a bottom plate and a supporting member. The keycap comprises two sliding parts; the bottom plate comprises a joint part; the supporting member comprises a sliding end and a connecting end and is used for connecting the keycap and the bottom plate. The sliding end comprises two protruding parts, the protruding parts slide on the sliding parts, and the connecting end is connected with the connecting part. Wherein, the sliding end comprises a connecting rod, the protruding parts protrude out of two side surfaces of the connecting rod, and the connecting rod comprises at least one sunken part or at least one through hole.

Description

key structure

technical field

The utility model relates to a key structure, in particular to a key structure with relatively large deformation limit.

Background technique

At present, almost every family in a country with more developed information has a computer. People use computers to access the Internet to obtain the information they need, or use computer messaging software to communicate with others. The most common input device on a computer is a keyboard, and the basic components of a keyboard are keys. Please refer to FIG. 1 . FIG. 1 is a cross-sectional view illustrating a key structure 1 according to the background art. As shown in FIG. 1 , the background key structure 1 includes a keycap 10 , a support member 12 and a bottom plate 14 . The supporting member 12 allows the keycap 10 to move vertically relative to the bottom plate 14 . When it is necessary to separate the keycap 10 from the supporting member 12 , since the keycap 10 is generally engaged with the supporting member 12 by a tenon, if the strength and angle of pulling out the keycap 10 are not appropriate, the supporting member 12 may be easily damaged.

Therefore, the main scope of the present invention is to provide a button structure which has a larger deformation limit when subjected to external force, so as to solve the above-mentioned problems.

Utility model content

An object of the present invention is to provide a button structure, which has a concave portion to increase the deformation limit of the button structure when subjected to external force.

The purpose of the utility model is achieved by providing a key structure, which includes a key cap, a bottom plate and a supporting member. The keycap includes a first connecting portion and two first sliding portions; the bottom plate includes a second connecting portion and a second sliding portion; the supporting member is used for connecting the keycap and the bottom plate, and the supporting member includes a first bracket and a second bracket. The first bracket is cross-connected to the second bracket, the first bracket includes a first end and a second end, and the second bracket includes a third end and a fourth end. The first end is engaged with the first engaging portion, and the second end slides with the second sliding portion. The third end includes two protruding parts, the protruding parts slide on the first sliding parts, and the fourth end connects to the second connecting part. Wherein, the third end includes a connecting rod, the protrusions protrude from two sides of the connecting rod, and the connecting rod includes at least one recess or at least one through hole.

The utility model has the advantage that the connecting rod of the button structure has a concave part to increase the permissible deformation limit of the connecting rod itself. Because the connecting rod at the third end can withstand relatively large deformation, the protruding parts on both sides will not be damaged when the key cap is separated from the supporting member, thereby increasing the durability of the key structure.

The advantages and spirit of the present utility model can be further understood through the following detailed description of the utility model and the accompanying drawings.

Description of drawings

FIG. 1 is a cross-sectional view illustrating a key structure according to the background technology;

FIG. 2 is a diagram illustrating the key structure according to the first embodiment of the present invention;

FIG. 3A is a schematic diagram illustrating a third end of the support portion in FIG. 2;

3B is a schematic diagram illustrating a third end according to a second embodiment;

3C is a schematic diagram illustrating a third end according to a third embodiment;

FIG. 4 is a schematic diagram illustrating a second bracket according to a fourth embodiment.

Description of main component symbols

1, 2: Button structure 10, 20: Keycap

12, 22: Support member 14, 24: Bottom plate

200: The first connecting part 202: The first sliding part

220: The first bracket 222, 522: The second bracket

240: The second connecting part 242: The second sliding part

2200: first end 2202: second end

2222: fourth end

2220, 3220, 4220, 5220: the third terminal

22200, 32200, 42200, 52200: protrusion

22202, 32202, 42202, 52202: connecting rod

22204, 32204, 52204: Depression

42204: Through Hole 32206, 42206: First Surface

32208, 42208: second surface OD: opening direction

FD: First direction SD: Second direction

Detailed ways

Please refer to FIG. 2 . FIG. 2 illustrates a key structure 2 according to a first embodiment of the present invention. The key structure 2 includes a keycap 20 , a support member 22 and a bottom plate 24 . The keycap 20 includes a first connecting portion 200 and two first sliding portions 202 . The bottom plate 24 includes a second connecting portion 240 and a second sliding portion 242 .

In the first embodiment, the supporting member 22 is used to connect the keycap 20 and the bottom plate 24 so that the keycap 20 can move vertically relative to the bottom plate 24 . The support member 22 includes a first bracket 220 and a second bracket 222 , and the first bracket 220 is connected to the second bracket 222 in a crossing manner. As shown in Figure 2, the first bracket 220 and the second bracket 222 are both slightly in the shape of a square, and the first bracket 220 protrudes two studs at about the middle of its outer edge, while the second bracket 222 protrudes at about the middle of its inner edge. Two holes are formed at the positions, respectively corresponding to the joints of the studs, so that the first bracket 220 and the second bracket 222 are connected in an X shape. Thus, the first bracket 220 and the second bracket 222 can act like scissors so that the keycap 20 connected thereto can move up and down relative to the bottom plate 24 .

The first bracket 220 includes a first end 2200 and a second end 2202 , and the second bracket 222 includes a third end 2220 and a fourth end 2222 . The first connecting portion 200 is roughly U-shaped, and the first end 2200 correspondingly includes a pivot. The pivot is clamped by the ㄇ-shaped first engaging portion 200 , and the first end 2200 is engaged with the first engaging portion 200 . The second sliding portion 242 is substantially in the shape of an L, which is an L-shaped plate extending from a surface of the bottom plate 24 and forms a slidable space with the surface. The second end 2202 correspondingly forms a slider, which slides in the aforementioned slidable space. Thus, the second end 2202 slides on the second sliding portion 242 .

Similar to the engagement relationship between the first end 2200 and the first connecting part, as shown in FIG. 2 , a hook extends from the surface 24, and the fourth end 2222 has a through hole and a pivot (located under the hook, not shown in FIG. 2 ). middle). The structure of the hook fits the pivot and constitutes a second engaging portion 240 with the surface. Thus, the hook passes through the through hole and catches the pivot, so as to realize the pivotal connection between the second connecting portion 240 and the fourth end 2222 , and the second bracket 222 can rotate relative to the pivot.

Similar to the connection relationship between the second end 2202 and the second sliding portion 242 , the first sliding portion 202 is also slightly U-shaped, which is an L-shaped plate extending from the bottom surface of the keycap 20 and forms a slidable space with the bottom surface. The third end 2220 of the second bracket 222 correspondingly forms two protruding parts 22200 , respectively sliding in the slidable space formed by the first sliding part 202 . Thus, the third end 2220 slides on the first sliding part 202 . In addition, the structural changes of the third end 2220 will be described in detail later.

Please refer to FIG. 2 and FIG. 3A . FIG. 3A is a schematic diagram illustrating the third end 2220 of the support portion 22 in FIG. 2 . As shown in FIG. 3A , the third end 2220 includes two protrusions 22200 and a connecting rod 22202 . Two protrusions 22200 protrude from both sides of the connecting rod 22202 , and the connecting rod 22202 has a recessed part 22204 . The concave portion 22204 defines an opening direction thereon, and when the second bracket 220 is substantially flat on the bottom plate 24 , the opening direction OD faces the keycap 20 . Certainly, the present invention is not limited thereto, and the opening direction OD may also face away from the keycap 20 .

If the user wants to remove the keycap 20 from the key structure 2 , he can apply force from one of the protrusions 22200 of the third end 2220 , and the direction of the force is shown by the curve with the arrow. Because the connecting rod 22202 has the concave portion 22204 and is relatively slender, the connecting rod 22202 can have greater elasticity when a force is applied to cause the connecting rod 22202 to bend. In addition, the concave space of the recessed part 22204 increases the deformation space of the connecting rod 22202, so that the connecting rod 22202 has a larger deformation limit. Therefore, when the third end 2220 bears an external force, the connecting rod 22202 or the protruding portion 22200 is less likely to break than in the prior art.

Please refer to FIG. 3B . FIG. 3B is a schematic diagram illustrating the third end 3220 according to the second embodiment. As shown in FIG. 3B , the connecting rod 32202 has three recesses 32204 between the two protruding portions 32200 , and the opening directions of the recesses 32204 can be facing and facing away from the keycap 20 (as shown in FIG. 2 ). In this way, in addition to having a deformable space on the first surface 32206 , the connecting rod 32202 also has a deformable space on the second surface 32208 . That is, if a force is applied to a corner of the third end 32200 (the direction of the force is shown by the curve with an arrow), the concave portion 32204 on the first surface 32206 increases the space that can be squeezed, and the space on the second surface 32208 The recess 32204 increases the space that can be pulled. Therefore, the concave portion 32204 can also allow the connecting rod 3220 to have greater deformation limit and elasticity.

Please refer to FIG. 3C , which is a schematic diagram illustrating a third end 4220 according to a third embodiment. As shown in FIG. 3C , the connecting rod 42202 has three through holes 42204 between the two protrusions 42200 , and the connecting rod 42202 defines a first direction FD and a second direction SD perpendicular to the first direction FD. The through hole 42204 passes through the connecting rod 42202 along the second direction SD. Please refer to FIG. 2 . If a force is applied to a corner of the third end 4220 (the direction of the force is shown by the curve with an arrow), the first surface 42206 of the connecting rod 42202 can sink into the through hole 42204, and the second surface 42208 can protrude toward the through hole 42204 . Therefore, the through hole 42204 can also allow the connecting rod 4220 to have greater deformation limit and elasticity.

In addition, as shown in FIG. 3A , a direction is defined through the protruding portion 22200 , the cross section of the recessed portion 22200 along this direction is U-shaped, and the cross section perpendicular to this direction changes continuously along this direction. Certainly, the utility model is not limited thereto, and the cross section may also be in the shape of an ㄇ (as shown in FIG. 3B ), a mouth shape (as shown in FIG. 3C ), an O-shape or a V-shape. It should be noted that if the shape of the section is smooth, such as U-shape or O-shape, under an external force, the force can be more evenly distributed on the connecting rod.

Please refer to FIG. 4 , which is a schematic diagram illustrating a second bracket 522 according to a fourth embodiment. As shown in FIG. 4 , the recessed portion 52204 defines an opening direction OD on it. When the second bracket 522 is substantially flat on the bottom plate 24 (shown in FIG. 2 ), the opening direction OD of one of the two recessed portions 52204 is vertical. The other opening direction OD of the bottom plate 24 is parallel to the bottom plate 24 . The recesses 52204 in different opening directions OD correspond to different force directions, so the connecting rod 52202 can have a larger deformation limit under different force directions. In addition, as shown in FIG. 4 , the protruding portion 52200 of the third end 5220 has a chamfer and is relatively smooth, and it is easier to separate the protruding portion 52200 of the third end 5220 from the keycap 20 (as shown in FIG. 2 ), that is, Pull out the keycap 20.

Compared with the background technology, the button structure of the present utility model has a recessed part or a through hole to reduce the cross-sectional area of the local connecting rod, so as to increase the allowable deformation limit of the connecting rod itself, and still maintain a considerable uniformity of the connecting rod as a whole. strength. When the keycap needs to be separated from the support member and the third end of the second bracket is subjected to a pulling force, because the connecting rod at the third end can withstand large deformation, the protrusions on both sides will not prevent the keycap from the support member. When damaged, increase the durability of the button structure. Further, the formation of the depression or the through hole is based on the principle of continuously changing the cross-sectional area of the connecting rod, so as to avoid material damage caused by local stress concentration of the connecting rod, but the present invention is not limited thereto.

Claims (6)

1. A button structure, comprising: a keycap, a bottom plate and a support member, used to connect the keycap and the bottom plate, the keycap includes a first connecting portion and two first sliding portions; the bottom plate includes a second An engaging portion and a second sliding portion; and the supporting member includes a first bracket and a second bracket, the first bracket is connected to the second bracket in a crossing manner, the first bracket includes a first end and a second end, and the first bracket includes a first end and a second end. The two brackets include a third end and a fourth end, the first end is connected to the first connecting part, the second end slides on the second sliding part, the third end includes two protruding parts, and the two protruding parts Sliding on the two first sliding parts, the fourth end is connected to the second connecting part; wherein, the third end includes a connecting rod, and the two protrusions protrude from the two sides of the connecting rod, and the connecting rod Contains at least one recess or at least one through hole. 2 . The key structure according to claim 1 , wherein the concave portion defines an opening direction, and the opening direction is toward or away from the keycap when the second bracket is placed flat on the bottom plate. 3 . 3 . The button structure according to claim 1 , wherein an opening direction is defined on the recessed portion, and the opening direction is parallel to the bottom plate when the second bracket is placed on the bottom plate. 4 . 4. The button structure according to claim 1, wherein the connecting rod at the third end defines a first direction and a second direction perpendicular to the first direction, and the through hole is along the second direction. The first direction passes through the connecting rod, and the first direction is toward the keycap when the second bracket is placed flat on the bottom plate. 5 . The button structure according to claim 1 , wherein a direction is defined through the two protruding portions, and a section of the recessed portion along the direction is U-shaped or V-shaped. 6 . The button structure according to claim 1 , wherein a direction is defined through the two protrusions, and a section of the connecting rod perpendicular to the direction changes continuously along the direction.

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