TWI663618B - Keyswitch structure and return force mechanism thereof - Google Patents
Keyswitch structure and return force mechanism thereof Download PDFInfo
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- TWI663618B TWI663618B TW107114040A TW107114040A TWI663618B TW I663618 B TWI663618 B TW I663618B TW 107114040 A TW107114040 A TW 107114040A TW 107114040 A TW107114040 A TW 107114040A TW I663618 B TWI663618 B TW I663618B
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Abstract
一種按鍵結構包含一底座、一鍵帽及一回復力機構，該回復力機構設置於該底座及該鍵帽之間以提供該鍵帽回彈力。該回復力機構包含一圓蓋狀彈性體及一中間彈性件，該圓蓋狀彈性體設置於該底座之一開關上方，該中間彈性件設置於該圓蓋狀彈性體與該鍵帽之間。當該鍵帽朝向該底座移動以擠壓該中間彈性件時，該中間彈性件擠壓該圓蓋狀彈性體，使得該圓蓋狀彈性體在該中間彈性件彈性挫曲前觸發該開關。藉此，該按鍵結構可回應使用者的按壓操作而快速觸發該開關並能提供使用者足夠的按壓行程。 A key structure includes a base, a keycap, and a restoring force mechanism. The restoring force mechanism is disposed between the base and the keycap to provide the keycap resilience. The restoring force mechanism includes a dome-shaped elastic body and an intermediate elastic member. The dome-shaped elastic body is disposed above a switch of the base, and the intermediate elastic member is disposed between the dome-shaped elastic body and the keycap. When the keycap is moved toward the base to squeeze the intermediate elastic member, the intermediate elastic member squeezes the dome-shaped elastic body, so that the dome-shaped elastic body triggers the switch before the intermediate elastic member elastically buckles. Thereby, the button structure can quickly trigger the switch in response to a user's pressing operation and can provide the user with a sufficient pressing stroke.
Description
本發明關於一種按鍵結構及其回復力機構，尤指一種利用彈性體觸發開關並提供按壓回復力之按鍵結構及其回復力機構。 The invention relates to a button structure and a restoring force mechanism thereof, and more particularly to a button structure and a restoring force mechanism that use an elastic body to trigger a switch and provide a pressing restoring force.
一般的按鍵結構於鍵帽及底座之間設置有一個橡膠圓突，其可被向下(即朝向底座)移動的鍵帽彈性擠壓而觸發對應的開關，彈性變形的橡膠圓突能提供鍵帽回復原位所需之力。於鍵帽擠壓橡膠圓突的過程中，橡膠圓突先彈性縮壓變形、再彈性挫曲以提供鍵帽一個按壓行程。其中，橡膠圓突在彈性挫曲前提供鍵帽較小部分的按壓行程，橡膠圓突利用彈性挫曲以提供較鍵帽較大部分的按壓行程，且開關是在橡膠圓突挫曲後觸發。橡膠圓突通常是利用自其內側頂面向下延伸的突柱，於橡膠圓突彈性變形時，向下移動以觸發開關。於此突柱觸發開關後，鍵帽繼續向下的移動使得該突柱被壓縮並迅速提高對使用者按壓的反饋力。一般而言，橡膠圓突於觸發開關後提供鍵帽的移動距離佔較小比例的按壓行程，於實作上，開關約在鍵帽向下移動了百分之七十的按壓行程時觸發。因此，此按鍵結構無法在提供使用者足夠的按壓行程的前題下，快速回應使用者的按壓操作(即在按壓行程的早期便觸發開關)，例如此按鍵結構無法滿足使用者於遊戲中對按鍵結構快速回應的需求。 The general key structure is provided with a rubber bump between the keycap and the base, which can be elastically squeezed by the keycap moving downward (that is, towards the base) to trigger the corresponding switch. The elastic deformed rubber bump can provide the key The force required for the cap to return to its original position. During the process of pressing the rubber bump by the keycap, the rubber bump is elastically compressed and deformed, and then elastically buckled to provide a pressing stroke of the keycap. Among them, the rubber bump provides a compression stroke of a smaller portion of the keycap before the elastic buckling, the rubber bump uses elastic buckling to provide a larger portion of the compression stroke of the keycap, and the switch is triggered after the rubber bump has buckled. . The rubber bump is usually a protrusion that extends downward from its inner top surface. When the rubber bump is elastically deformed, it moves downward to trigger the switch. After the stud triggers the switch, the keycap continues to move downwards so that the stud is compressed and the feedback force to the user's press is quickly increased. Generally speaking, a rubber bump provides a small percentage of the pressing stroke of the keycap after the switch is triggered. In practice, the switch is triggered when the keycap moves down by 70% of the pressing stroke. Therefore, this button structure cannot quickly respond to the user's pressing operation under the premise of providing the user with sufficient pressing stroke (that is, the switch is triggered early in the pressing stroke). For example, this button structure cannot meet the user's requirements for gameplay. Button structure responds quickly to demand.
鑑於先前技術中的問題，本發明提供一種按鍵結構，其回復力機構利用多個彈性件組合以快速觸發按鍵結構的開關並於該開關觸發後提供按鍵結 構的鍵帽一段相當距離的繼續向下的移動。 In view of the problems in the prior art, the present invention provides a button structure. The restoring force mechanism uses a combination of multiple elastic members to quickly trigger a switch of the button structure and provide a button knot after the switch is triggered. The structured keycap continues to move down a considerable distance.
根據本發明之按鍵結構包含一底座、一鍵帽及一回復力機構。該底座具有一開關。該鍵帽設置於該底座上方。該回復力機構設置於該底座及該鍵帽之間並包含一圓蓋狀彈性體及一中間彈性件。該圓蓋狀彈性體設置於該開關上方。該中間彈性件設置於該圓蓋狀彈性體與該鍵帽之間。其中，當該鍵帽朝向該底座移動以擠壓該中間彈性件時，該中間彈性件擠壓該圓蓋狀彈性體，使得該圓蓋狀彈性體在該中間彈性件彈性挫曲前觸發該開關。藉此，該回復力機構能快速觸發該開關，該回復力機構於該開關觸發後透過該中間彈性件的彈性挫曲以容許該鍵帽繼續朝向該底座移動。 The key structure according to the present invention includes a base, a keycap, and a restoring force mechanism. The base has a switch. The keycap is disposed above the base. The restoring force mechanism is disposed between the base and the keycap and includes a dome-shaped elastic body and an intermediate elastic member. The dome-shaped elastic body is disposed above the switch. The intermediate elastic member is disposed between the dome-shaped elastic body and the keycap. Wherein, when the keycap moves toward the base to squeeze the intermediate elastic member, the intermediate elastic member squeezes the dome-shaped elastic body, so that the dome-shaped elastic body triggers the elastic member before the intermediate elastic member flexes elastically. switch. Thereby, the restoring force mechanism can quickly trigger the switch, and the restoring force mechanism allows the keycap to continue to move toward the base through the elastic buckling of the intermediate elastic member after the switch is triggered.
本發明的另一方目的在於提供一種回復力機構，用於一按鍵結構中，該回復力機構利用多個彈性件組合以快速觸發按鍵結構的開關並於該開關觸發後提供按鍵結構的鍵帽一段相當距離的繼續向下的移動。 Another object of the present invention is to provide a restoring force mechanism for a key structure. The restoring force mechanism uses a combination of multiple elastic members to quickly trigger a switch of a key structure and provide a keycap section of the key structure after the switch is triggered Continue to move down a considerable distance.
根據本發明之回復力機構安裝於一按鍵結構中且位於該按鍵結構之一底座及一鍵帽之間，該底座具有一開關。該回復力機構包含一圓蓋狀彈性體及一中間彈性件。該圓蓋狀彈性體設置於該開關上方。該中間彈性件設置於該圓蓋狀彈性體上。其中，當該中間彈性件被該鍵帽擠壓以施力於該圓蓋狀彈性體時，該圓蓋狀彈性體在該中間彈性件彈性挫曲前彈性挫曲。藉此，該回復力機構能快速觸發該開關，該回復力機構於該開關觸發後透過該中間彈性件的彈性挫曲以容許該鍵帽繼續朝向該底座移動。 The restoring force mechanism according to the present invention is installed in a key structure and is located between a base and a keycap of the key structure, and the base has a switch. The restoring force mechanism includes a dome-shaped elastic body and an intermediate elastic member. The dome-shaped elastic body is disposed above the switch. The intermediate elastic member is disposed on the dome-shaped elastic body. Wherein, when the intermediate elastic member is pressed by the keycap to apply force to the dome-shaped elastic body, the dome-shaped elastic body is elastically buckled before the intermediate elastic member is elastically buckled. Thereby, the restoring force mechanism can quickly trigger the switch, and the restoring force mechanism allows the keycap to continue to move toward the base through the elastic buckling of the intermediate elastic member after the switch is triggered.
相對於先前技術，根據本發明之回復力機構利用該圓蓋狀彈性體於一按壓行程的早期觸發該開關並利用該中間彈性件的彈性挫曲以容許該鍵帽繼續該按壓行程，故根據本發明之按鍵結構(包含該回復力機構)能在提供使用者足夠的按壓行程的前題下，快速回應使用者的按壓操作(即在按壓行程的早期便觸發開關)，例如此能滿足使用者於遊戲中對按鍵結構快速回應的需求。 Compared with the prior art, the restoring force mechanism according to the present invention uses the dome-shaped elastic body to trigger the switch at an early stage of a pressing stroke and utilizes the elastic buckling of the intermediate elastic member to allow the keycap to continue the pressing stroke. The key structure (including the restoring force mechanism) of the present invention can quickly respond to the user's pressing operation (that is, trigger the switch early in the pressing stroke) under the premise of providing the user with sufficient pressing stroke. For example, this can satisfy the use The need for quick response to key structures in games.
關於本發明之優點與精神可以藉由以下的發明詳述及所附圖式得到進一步的瞭解。 The advantages and spirit of the present invention can be further understood through the following detailed description of the invention and the accompanying drawings.
1‧‧‧按鍵結構 1‧‧‧Key structure
10‧‧‧底座 10‧‧‧ base
102‧‧‧底板 102‧‧‧ floor
1022‧‧‧連接結構 1022‧‧‧ Connection Structure
104‧‧‧薄膜電路板 104‧‧‧ Thin Film Circuit Board
1042‧‧‧開關 1042‧‧‧Switch
1043‧‧‧接點 1043‧‧‧Contact
105‧‧‧印刷電路板 105‧‧‧printed circuit board
12‧‧‧鍵帽 12‧‧‧Keycap
122‧‧‧連接結構 122‧‧‧ Connection Structure
14‧‧‧升降機構 14‧‧‧Lifting mechanism
16‧‧‧回復力機構 16‧‧‧Resilience agency
162‧‧‧圓蓋狀彈性體 162‧‧‧ dome-shaped elastomer
162a‧‧‧開口 162a‧‧‧open
162b‧‧‧頂部 162b‧‧‧Top
164‧‧‧中間彈性件 164‧‧‧Intermediate elastic piece
1642‧‧‧上環 1642‧‧‧Sheung Wan
1644‧‧‧基部 1644‧‧‧Base
1646‧‧‧內側連接壁 1646‧‧‧ inside connecting wall
1648‧‧‧外側連接壁 1648‧‧‧outer connecting wall
D1、D2、D3、D4‧‧‧變形量 D1, D2, D3, D4‧‧‧‧Deformation
P0‧‧‧未按壓位置 P0‧‧‧Not pressed position
P1‧‧‧觸發位置 P1‧‧‧Trigger position
P2‧‧‧按壓位置 P2‧‧‧Press position
L1、L2‧‧‧距離 L1, L2‧‧‧ distance
圖1為根據一實施例之一按鍵結構之示意圖。 FIG. 1 is a schematic diagram of a key structure according to an embodiment.
圖2為圖1中按鍵結構之***圖。 FIG. 2 is an exploded view of the button structure in FIG. 1.
圖3為圖2中按鍵結構之回復力機構之中間彈性件於另一視角之立體剖面圖。 3 is a perspective cross-sectional view of the intermediate elastic member of the restoring force mechanism of the key structure in FIG. 2 from another perspective.
圖4為圖1中按鍵結構沿線X-X之剖面圖，其中按鍵結構的鍵帽位於一未按壓位置。 FIG. 4 is a cross-sectional view of the key structure in FIG. 1 along the line X-X, wherein the key cap of the key structure is in an unpressed position.
圖5為圖4中按鍵結構的鍵帽位於一觸發位置時之剖面圖。 5 is a cross-sectional view of the keycap of the key structure in FIG. 4 when the keycap is located at a trigger position.
圖6為圖4中按鍵結構的鍵帽位於一按壓位置時之剖面圖。 FIG. 6 is a cross-sectional view of the keycap of the key structure in FIG. 4 when the keycap is in a pressing position.
圖7為圖5中按鍵結構根據其底座之開關的變化例之剖面圖。 FIG. 7 is a cross-sectional view of a modification of the button structure in FIG. 5 according to a switch of its base.
圖8為圖4中按鍵結構根據其回復力機構之中間彈性件的變化例之剖面圖。 FIG. 8 is a cross-sectional view of the key structure of FIG. 4 according to a modified example of the intermediate elastic member of the restoring force mechanism.
圖9為圖1中按鍵結構之回復力機構之中間彈性件的施力對變形量的曲線圖。 FIG. 9 is a graph of the force applied to the deformation amount of the intermediate elastic member of the restoring force mechanism of the key structure in FIG. 1.
請參閱圖1至圖2。根據一實施例之一按鍵結構1包含一底座10、一鍵帽12、一升降機構14(例如但不限於一剪刀腳支架)及一回復力機構16。鍵帽12設置於底座10上方。升降機構14連接於鍵帽12及底座10之間，使得鍵帽12能經由升降機構14以相對於底座10移動(例如上下移動)。回復力機構16設置於底座10及鍵帽12之間，用以提供鍵帽12回復力(用以使被按壓的鍵帽12能回復至原位)。 Please refer to Figures 1-2. A key structure 1 according to an embodiment includes a base 10, a keycap 12, a lifting mechanism 14 (such as but not limited to a scissor foot support), and a restoring force mechanism 16. The keycap 12 is disposed above the base 10. The lifting mechanism 14 is connected between the keycap 12 and the base 10 so that the keycap 12 can be moved relative to the base 10 (for example, up and down) via the lifting mechanism 14. The restoring force mechanism 16 is provided between the base 10 and the keycap 12 to provide a restoring force of the keycap 12 (to enable the pressed keycap 12 to return to its original position).
此外，於本實施例中，底座10包含一底板102及一薄膜電路板104。底板102具有複數個連接結構1022，與升降機構14連接。薄膜電路板104設置於底板102上並具有複數個鏤空104a，連接結構1022能經由鏤空104a露出以與升降機構14之一側連接(其中，升降機構14之另一側則與設置於鍵帽12底表面之複數 個連接結構122連接，其於圖2中以隱藏線繪示)。薄膜電路板104具有一開關1042(於圖2中，以斜線填充的圓圈表示)，當鍵帽12朝向底座10移動而擠壓回復力機構16時，回復力機構16能觸發開關1042。一般而言，薄膜電路板104為三層薄板結構，其中中間的薄板設置於上、下薄板之間以絕緣形成於上、下薄板表面上的電路。開關1042以兩相對設置於上、下薄板表面上的接點實作，中間的薄板於對應開關1042處形成通孔，使得開關1042能因薄膜電路板104被按壓而觸發(即接點接觸形成導通)。為簡化圖面，薄膜電路板104仍以單一結構件表現，開關1042亦以單一結構件表現。於實作上，薄膜電路板104亦得以一印刷電路板實作，其上可設置一開關(例如觸碰開關)以實作開關1042，或其上形成有相鄰近設置的一對接點以實作開關1042(此時，回復力機構16透過可導電的部分導通該對接點以實現開關1042的觸發)。 In addition, in this embodiment, the base 10 includes a base plate 102 and a thin-film circuit board 104. The bottom plate 102 has a plurality of connection structures 1022 and is connected to the lifting mechanism 14. The thin-film circuit board 104 is disposed on the base plate 102 and has a plurality of hollows 104a. The connection structure 1022 can be exposed through the hollows 104a to be connected to one side of the lifting mechanism 14 (wherein the other side of the lifting mechanism 14 is connected to the keycap 12) Plural of bottom surface The two connection structures 122 are connected, which are shown by hidden lines in FIG. 2). The thin-film circuit board 104 has a switch 1042 (indicated by a circle filled with diagonal lines in FIG. 2). When the keycap 12 moves toward the base 10 and presses the restoring force mechanism 16, the restoring force mechanism 16 can trigger the switch 1042. Generally speaking, the thin-film circuit board 104 has a three-layer thin-plate structure, in which the middle thin plate is disposed between the upper and lower thin plates to insulate circuits formed on the surfaces of the upper and lower thin plates. The switch 1042 is implemented by two contacts disposed on the surface of the upper and lower sheets. The middle sheet forms a through hole at the corresponding switch 1042, so that the switch 1042 can be triggered by the thin-film circuit board 104 being pressed (that is, the contact contact is formed). Continuity). To simplify the drawing, the thin-film circuit board 104 is still represented by a single structural component, and the switch 1042 is also represented by a single structural component. In practice, the thin-film circuit board 104 can also be implemented as a printed circuit board, and a switch (such as a touch switch) can be provided thereon to implement the switch 1042, or a pair of contacts disposed adjacent to each other can be implemented thereon. As the switch 1042 (at this time, the restoring force mechanism 16 conducts the docking point through the conductive part to realize the trigger of the switch 1042).
請併參閱圖4至圖6。回復力機構16包含一圓蓋狀彈性體162及一中間彈性件164。圓蓋狀彈性體162設置於開關1042上方，中間彈性件164設置於圓蓋狀彈性體162與鍵帽12之間。鍵帽12能相對於底座10於一未按壓位置P0(如圖4所示者)及一按壓位置P2(如圖6所示者)之間垂直移動。於鍵帽12自未按壓位置P0、經一觸發位置P1(如圖5所示者)、至按壓位置P2的移動過程中，鍵帽12會擠壓中間彈性件164，使得中間彈性件164擠壓圓蓋狀彈性體162，以使圓蓋狀彈性體162觸發開關1042；於各剖面圖中，另以虛線繪示的參考線表示各位置P0、P1、P2。其中，當鍵帽12朝向底座10移動以擠壓中間彈性件164時，中間彈性件164擠壓圓蓋狀彈性體162，使得圓蓋狀彈性體162在中間彈性件164彈性挫曲前觸發開關1042，如圖5所示。 Please also refer to FIGS. 4 to 6. The restoring force mechanism 16 includes a dome-shaped elastic body 162 and an intermediate elastic member 164. A dome-shaped elastic body 162 is disposed above the switch 1042, and an intermediate elastic member 164 is provided between the dome-shaped elastic body 162 and the keycap 12. The keycap 12 can move vertically with respect to the base 10 between an unpressed position P0 (as shown in FIG. 4) and a pressed position P2 (as shown in FIG. 6). During the movement of the keycap 12 from the unpressed position P0, through a trigger position P1 (as shown in FIG. 5), and to the pressed position P2, the keycap 12 squeezes the intermediate elastic member 164, so that the intermediate elastic member 164 squeezes The dome-shaped elastic body 162 is pressed to cause the dome-shaped elastic body 162 to trigger the switch 1042; in each cross-sectional view, the reference lines shown by dotted lines indicate the positions P0, P1, and P2. Wherein, when the keycap 12 moves toward the base 10 to squeeze the intermediate elastic member 164, the intermediate elastic member 164 squeezes the dome-shaped elastic body 162, so that the dome-shaped elastic body 162 triggers the switch before the intermediate elastic member 164 elastically buckles. 1042, as shown in Figure 5.
於本實施例中，圓蓋狀彈性體162大致呈一碟形且具有一開口162a及一頂部162b，開口162a朝向底座10。中間彈性件164經由圓蓋狀彈性體162的頂部162b向下擠壓圓蓋狀彈性體162，使得圓蓋狀彈性體162彈性挫曲以使頂部 162b其內則頂面向下移動以觸發開關1042(如圖5所示者)。於實作上，若圓蓋狀彈性體162是透過接觸並導通二接點1043(例如形成於一印刷電路板105上，以實作開關1042)以實現開關1042的觸發(如圖7所示)，原則上頂部162b的內則頂面係可導電；例如圓蓋狀彈性體162以一金屬碟實作，又或頂部162b的內則頂面上設有導電塗層(此時圓蓋狀彈性體162本身不以可導電的金屬材質製作為限)。 In this embodiment, the dome-shaped elastic body 162 is substantially dish-shaped and has an opening 162 a and a top portion 162 b. The opening 162 a faces the base 10. The middle elastic member 164 presses the dome-shaped elastic body 162 downward through the top portion 162b of the dome-shaped elastic body 162, so that the dome-shaped elastic body 162 elastically buckles to make the top portion Inside 162b, the top surface moves downward to trigger the switch 1042 (as shown in FIG. 5). In practice, if the dome-shaped elastic body 162 contacts and conducts the two contacts 1043 (for example, formed on a printed circuit board 105 to implement the switch 1042) to realize the trigger of the switch 1042 (as shown in FIG. 7) ), In principle, the top surface of the top 162b is conductive; for example, the dome-shaped elastic body 162 is implemented by a metal plate, or the inner surface of the top 162b is provided with a conductive coating (at this time, the dome-shaped The elastic body 162 itself is not limited to being made of a conductive metal material).
中間彈性件164包含一上環1642、一基部1644、一內側連接壁1646及一外側連接壁1648，內側連接壁1646連接上環1642及基部1644，上環1642抵靠鍵帽12底表面，基部1644抵靠圓蓋狀彈性體162的頂部162b，外側連接壁1648連接上環1642並抵靠底座10。於本實施例中，內側連接壁1646及外側連接壁1648均呈環狀，但實作上不以此為限，例如均以數個連接臂實現。此外，於實作上，中間彈性件164可僅由外側連接壁1648支撐於底座10上；於此例中，於中間彈性件164被鍵帽12向下擠壓而彈性變形前，基部1644未接觸頂部162b。又，於實作上，中間彈性件164可省略外側連接壁1648，而由基部1644抵靠於頂部162b的外則頂面上以設置於底座10上方(如圖8所示)。 The intermediate elastic member 164 includes an upper ring 1642, a base portion 1644, an inner connecting wall 1646 and an outer connecting wall 1648. The inner connecting wall 1646 connects the upper ring 1642 and the base 1644. The upper ring 1642 abuts the bottom surface of the keycap 12, and the base 1644 abuts. The top portion 162 b of the dome-shaped elastic body 162 and the outer connecting wall 1648 are connected to the upper ring 1642 and abut against the base 10. In this embodiment, both the inner connecting wall 1646 and the outer connecting wall 1648 are ring-shaped, but the implementation is not limited to this. For example, both are implemented by several connecting arms. In addition, in practice, the middle elastic member 164 may be supported on the base 10 only by the outer connecting wall 1648; in this example, before the middle elastic member 164 is pressed down by the keycap 12 and elastically deformed, the base 1644 is not Touch the top 162b. In addition, in practice, the middle elastic member 164 can omit the outer connecting wall 1648, and the outer surface of the top portion 162b abutted by the base portion 1644 is disposed above the base 10 (as shown in FIG. 8).
於本實施例中，外側連接壁1648的彈性小於內側連接壁1646的彈性，故鍵帽12向下移動而對上環1642施加之力，大部分經由內側連接壁1646傳遞至基部1644，進而向下擠壓圓蓋狀彈性體162。就中間彈性件164本身而言，當其受垂直方向的力時(例如鍵帽12經由上環1642對中間彈性件164施力)，此力與其變形量的關係並非線性，此施力對變形量的示意曲線如圖9所示。當中間彈性件164未有變形量時，按鍵結構1未被按壓，鍵帽12位於未按壓位置P0(如圖4所示)。當變形量到達D1時，中間彈性件164發生挫曲，使得之後的變形中，施力隨變形量增加而減小。之後，當中間彈性件164壓縮困難時(例如鍵帽12接觸到基部1644而無法再繼續下移，又或上環1642接觸到底座10，又或鍵帽12與底座10之間已無空間可供中間彈性件164有效伸展)，施力隨變形量增加而急劇上升； 於本實施例中，當變形量到達D2時，鍵帽12亦到達按壓位置P2(如圖6所示)。當施力去除時，中間彈性件164回復原狀；換言之，圖9所示的變形範圍內，中間彈性件164均是彈性變形。 In this embodiment, the elasticity of the outer connecting wall 1648 is smaller than the elasticity of the inner connecting wall 1646. Therefore, the force exerted by the keycap 12 on the upper ring 1642 is transmitted to the base 1644 through the inner connecting wall 1646, and then downward The dome-shaped elastic body 162 is pressed. As far as the intermediate elastic member 164 is concerned, when it is subjected to a vertical force (for example, the key cap 12 exerts a force on the intermediate elastic member 164 via the upper ring 1642), the relationship between the force and the amount of deformation is non-linear. The schematic curve is shown in Figure 9. When the intermediate elastic member 164 has no deformation, the key structure 1 is not pressed, and the keycap 12 is located at the unpressed position P0 (as shown in FIG. 4). When the amount of deformation reaches D1, the intermediate elastic member 164 buckles, so that in the subsequent deformation, the applied force decreases as the amount of deformation increases. Afterwards, when it is difficult to compress the intermediate elastic member 164 (for example, the keycap 12 contacts the base 1644 and can no longer move down, or the upper ring 1642 contacts the base 10, or there is no space available between the keycap 12 and the base 10 The intermediate elastic member 164 is effectively extended), and the applied force rises sharply as the amount of deformation increases; In this embodiment, when the amount of deformation reaches D2, the keycap 12 also reaches the pressing position P2 (as shown in FIG. 6). When the force is removed, the intermediate elastic member 164 returns to its original state; in other words, within the deformation range shown in FIG. 9, the intermediate elastic member 164 is elastically deformed.
此外，於本實施例中，內側連接壁1646強度遠大於外側連接壁1648，使得當中間彈性件164彈性挫曲時，原則上內側連接壁1646亦彈性挫曲。於實作上，中間彈性件164可由但不限於橡膠製作；又，中間彈性件164不限由單一材質製作，例如內側連接壁1646及外側連接壁1648使用彈性材質(例如橡膠)製作，上環1642及基部1644可使用彈性較小或不具彈性的材質(例如工程塑膠)製作。中間彈性件164於變形量到達D1前的彈性係數(不以常數值為限)原則上由內側連接壁1646的結構尺寸及設置而定，例如增加內側連接壁1646的厚度(即剖面圖中所呈現的厚度)可增加彈性係數(亦即增加曲線的斜率)，又例如增加內側連接壁1646傾斜設置的角度(即剖面圖中內側連接壁1646偏離垂直的角度)可降低彈性係數。於實作上，亦可增加外側連接壁1648對中間彈性件164整體結構強度的貢獻，例如增加外側連接壁1648的厚度，進而改變圖9所示之曲線(例如中間彈性件164發生挫曲的位置，對應變形量D1)；所需曲線特性可透過試驗(例如電腦模擬)而獲得，不另贅述。又，於本實施例中，當鍵帽12位於按壓位置P2時，基部1644於水平方向位於上環1642內側(如圖6所示)。 In addition, in this embodiment, the strength of the inner connecting wall 1646 is much greater than that of the outer connecting wall 1648, so that when the intermediate elastic member 164 is elastically buckled, the inner connecting wall 1646 is also resiliently buckled in principle. In practice, the intermediate elastic member 164 may be made of, but not limited to, rubber; and the intermediate elastic member 164 is not limited to be made of a single material. For example, the inner connecting wall 1646 and the outer connecting wall 1648 are made of an elastic material (such as rubber). And the base 1644 can be made of a less elastic or non-elastic material (such as engineering plastic). The elastic coefficient of the intermediate elastic member 164 before the amount of deformation reaches D1 (not limited to a constant value) is in principle determined by the structural size and setting of the inner connecting wall 1646, for example, increasing the thickness of the inner connecting wall 1646 (that is, The thickness shown can increase the coefficient of elasticity (that is, increase the slope of the curve). For example, increasing the angle at which the inner connecting wall 1646 is inclined (that is, the angle at which the inner connecting wall 1646 deviates from the vertical) in the sectional view can reduce the elastic coefficient. In practice, the contribution of the outer connecting wall 1648 to the overall structural strength of the intermediate elastic member 164 can also be increased, such as increasing the thickness of the outer connecting wall 1648, and then changing the curve shown in FIG. 9 (for example, the middle elastic member 164 is buckled. Position, corresponding to the amount of deformation D1); the required curve characteristics can be obtained through experiments (such as computer simulation), and will not be described in detail. Moreover, in this embodiment, when the keycap 12 is located at the pressing position P2, the base portion 1644 is located inside the upper ring 1642 in the horizontal direction (as shown in FIG. 6).
另外，於本實施例中，圓蓋狀彈性體162在中間彈性件164彈性挫曲前彈性挫曲，進而觸發開關1042(此時鍵帽12位於觸發位置P1)。當變形量到達D3時，鍵帽12亦到達觸發位置P1，開關1042被觸發(如圖5所示)。於實作上，觸發位置P1可配合產品需求而定，例如改變圓蓋狀彈性體162的結構(例如增減厚度、改變材質、改變結構高度等)、或改變中間彈性件164的彈性係數。於本實施例中，未按壓位置P0至觸發位置P1之距離L1小於未按壓位置P0至按壓位置P2之距離L2的二分之一，例如距離L1約為但不限於距離L2的三分之一。因此，於實 際使用上，於一按壓行程(即相當於鍵帽12自未按壓位置P0至按壓位置P2之距離，即距離L2)中，按鍵結構1能於該按壓行程的早期便觸發開關1042。剩下的按壓行程(即相當於鍵帽12自觸發位置P1至按壓位置P2之距離，即距離L2減去距離L1)仍保有相當長度。換言之，按鍵結構1能在提供使用者足夠的按壓行程的前題下，快速回應使用者的按壓操作(即在按壓行程的早期便觸發開關)；例如，此特性能滿足使用者於遊戲中對按壓操作快速回應的需求(例如於射擊遊戲中發射槍彈)。另外，於圖9所示的曲線中，對應變形量D1至D2的施力範圍中，有一相對極小值的施力(對應變形量D4)。於實作上，對應變形量D1與變形量D4的施力的差值可設計為儘量縮小，此可減輕使用者按壓鍵帽12時的撞擊感(原則上此受對應變形量D2與變形量D4的施力的差值影響)。 In addition, in this embodiment, the dome-shaped elastic body 162 is elastically buckled before the intermediate elastic member 164 is elastically buckled, and then the switch 1042 is triggered (at this time, the keycap 12 is located at the trigger position P1). When the amount of deformation reaches D3, the keycap 12 also reaches the trigger position P1, and the switch 1042 is triggered (as shown in FIG. 5). In practice, the trigger position P1 can be determined according to product requirements, such as changing the structure of the dome-shaped elastic body 162 (for example, increasing or decreasing the thickness, changing the material, changing the structural height, etc.), or changing the elastic coefficient of the intermediate elastic member 164. In this embodiment, the distance L1 from the unpressed position P0 to the trigger position P1 is less than one-half of the distance L2 from the unpressed position P0 to the pressed position P2. For example, the distance L1 is approximately but not limited to one third of the distance L2. . Therefore, in reality In practical use, during a pressing stroke (that is, the distance equivalent to the keycap 12 from the unpressed position P0 to the pressed position P2, that is, the distance L2), the key structure 1 can trigger the switch 1042 early in the pressing stroke. The remaining pressing stroke (that is, the distance corresponding to the keycap 12 from the trigger position P1 to the pressing position P2, that is, the distance L2 minus the distance L1) still has a considerable length. In other words, the button structure 1 can quickly respond to the user's pressing operation under the premise of providing the user with sufficient pressing stroke (that is, the switch is triggered early in the pressing stroke); for example, this feature satisfies Press operations respond quickly to demand (such as firing a bullet in a shooting game). In addition, in the curve shown in FIG. 9, in the range of the force corresponding to the amount of deformation D1 to D2, there is a relatively small value of the force (corresponding to the amount of deformation D4). In practice, the difference between the forces corresponding to the amount of deformation D1 and the amount of deformation D4 can be designed to be as small as possible, which can reduce the impact when the user presses the keycap 12 (in principle, this is affected by the corresponding amount of deformation D2 and amount of deformation D4's difference in force).
以上所述僅為本發明之較佳實施例，凡依本發明申請專利範圍所做之均等變化與修飾，皆應屬本發明之涵蓋範圍。 The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the scope of patent application of the present invention shall fall within the scope of the present invention.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2390235Y (en) * | 1999-09-10 | 2000-08-02 | 新巨企业股份有限公司 | Key location device for keyboard |
| CN2768173Y (en) * | 2005-01-06 | 2006-03-29 | 东莞翊凯电器制品有限公司 | Computer keyboard key structure |
| TW200937473A (en) * | 2008-02-29 | 2009-09-01 | Chi Mei Comm Systems Inc | Pressing device and method for making the same |
| CN202816747U (en) * | 2012-09-20 | 2013-03-20 | 昆达电脑科技(昆山)有限公司 | Automatic rebound button mechanism |
| TWM474179U (en) * | 2013-09-12 | 2014-03-11 | Darfon Electronics Corp | Resilient actuator and keyswitch including such resilient actuator |
| TW201447946A (en) * | 2013-06-14 | 2014-12-16 | Darfon Electronics Corp | Keyswitch structure |
| TW201513153A (en) * | 2013-09-26 | 2015-04-01 | Darfon Electronics Corp | Keyswitch structure |
| TW201616539A (en) * | 2014-10-29 | 2016-05-01 | 達方電子股份有限公司 | Keyswitch structure |
| TWM556918U (en) * | 2017-11-15 | 2018-03-11 | 精元電腦股份有限公司 | Two-stage touch key structure |
-
2018
- 2018-04-25 TW TW107114040A patent/TWI663618B/en active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2390235Y (en) * | 1999-09-10 | 2000-08-02 | 新巨企业股份有限公司 | Key location device for keyboard |
| CN2768173Y (en) * | 2005-01-06 | 2006-03-29 | 东莞翊凯电器制品有限公司 | Computer keyboard key structure |
| TW200937473A (en) * | 2008-02-29 | 2009-09-01 | Chi Mei Comm Systems Inc | Pressing device and method for making the same |
| CN202816747U (en) * | 2012-09-20 | 2013-03-20 | 昆达电脑科技(昆山)有限公司 | Automatic rebound button mechanism |
| TW201447946A (en) * | 2013-06-14 | 2014-12-16 | Darfon Electronics Corp | Keyswitch structure |
| TWM474179U (en) * | 2013-09-12 | 2014-03-11 | Darfon Electronics Corp | Resilient actuator and keyswitch including such resilient actuator |
| TW201513153A (en) * | 2013-09-26 | 2015-04-01 | Darfon Electronics Corp | Keyswitch structure |
| TW201616539A (en) * | 2014-10-29 | 2016-05-01 | 達方電子股份有限公司 | Keyswitch structure |
| TWM556918U (en) * | 2017-11-15 | 2018-03-11 | 精元電腦股份有限公司 | Two-stage touch key structure |
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