Key structure

A technology of buttons and keycaps, which is applied in the direction of tactile feedback, electrical components, electric switches, etc., and can solve the problems that the keycaps cannot be quickly pressed and responded quickly.

Inactive Publication Date: 2016-04-13
DARFON ELECTRONICS (SUZHOU) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the current buttons, no matter whether they use springs or silicone bumps, canno

Method used

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Embodiment Construction

[0048] see Figure 1 to Figure 5 . A key structure 1 according to an embodiment of the present invention includes a base 10 , a keycap 12 , a restoring force mechanism 14 , a light source device 16 and a switch 18 . The keycap 12 is arranged on the base 10, and the restoring force mechanism 14 is arranged between the base 10 and the keycap 12; through the sliding combination between the base 10 and the keycap 12, the keycap 12 can be parallel to a direction D1( indicated by an arrow at Figure 4 and Figure 5 middle) to selectively move toward or away from the base 10. Among them Figure 4 or Figure 5 In terms of viewing angle, the direction D1 is equivalent to the vertical direction. In this embodiment, the restoring force mechanism 14 is a combination of springs, which includes a first spring 142 and a second spring 144, the first spring 142 and the second spring 144 are connected in series and arranged between the base 10 and the keycap 12, wherein The upper end of ...

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Abstract

The invention discloses a key structure. According to the key structure, a spring assembly composed of multiple springs connected in series supplies resilience force to a key cap. When the key cap moves towards a base of the key structure, one of the springs stops deformation after the key cap moves beyond a switching position, so that the elastic coefficient of the whole spring assembly is increased, and elasticity of the spring assembly can be enhanced. As a result, a user will feel feedback force which is light at first and heavy later in the process of pressing the key cap. The characteristic of the feedback force enables the user to press the key cap quickly, and the key cap can quickly rebound after being pressed. Further, a laterally actuated switch can be applied to the key structure, and influences of the resilience force of the switch on up-down action of the key cap can be reduced.

Description

technical field [0001] The present invention relates to a button structure, in particular to a button structure using a spring as a restoring force. Background technique [0002] At present, most buttons use springs or silicone bumps to provide the resilience required by the keycaps. Generally speaking, most of the springs used have only a single fixed spring constant. If the spring constant is small, the resilience provided by the spring is also small, and the resistance when the user presses the keycap is also small, so that the user can quickly press the keycap. However, due to the small resilience, it takes a long time for the pressed keycap to return to its original position, which is not suitable for continuous pressing in a short period of time. If the spring constant is larger, the rebound force provided by the spring is also larger, and the pressed keycap can return to its original position in a shorter time. However, due to the large resilience, the resistance w...

Claims

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Application Information

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IPC IPC(8): H01H13/14
CPCH01H13/14H01H13/34H01H13/85H01H2215/034
Inventor 廖瑞铭颜志仲骆弘杰刘家宏
Owner DARFON ELECTRONICS (SUZHOU) CO LTD
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