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CN-116666139-B - Key device and cap thereof

CN116666139BCN 116666139 BCN116666139 BCN 116666139BCN-116666139-B

Abstract

A key device comprises a carrier, a switch arranged on the carrier, a film panel covered on the carrier and a cap. The cap can be installed in the switch with can separate the ground between the film panel to including can separate the ground card support in at least two first key feet and at least two second key feet of switch, at least two first key foot parallel interval sets up, at least two second key foot parallel interval sets up, at least two first key feet with at least two second key foot interval, every first key foot has first length, every second key foot has the second length, the second length with first length inequality. Different pressing strokes are obtained by pulling out the first key leg or pulling out the second key leg, so that the cost for replacing the cap is saved.

Inventors

  • LIN TINGYI

Assignees

  • 宝元数控股份有限公司

Dates

Publication Date
20260512
Application Date
20220622
Priority Date
20220218

Claims (10)

  1. 1. A cap adapted to be mounted on a switch, the switch comprising a body and a key movably mounted on the body along an axis and capable of being touched, the cap comprising: a mounting surface adapted to face the key; A touch surface opposite to the mounting surface, and At least two first key feet extend from the mounting surface towards the body and are arranged at intervals in parallel, and each first key foot can be detachably clamped against the key and has a first length along the axis direction; characterized in that the cap further comprises: At least two second key feet extend from the mounting surface towards the body and are arranged at intervals in parallel, the second key feet are arranged at intervals with the first key feet, each second key foot can be detachably clamped against the key, a second length is arranged along the axis direction, and the second length is unequal to the first length.
  2. 2. The cap of claim 1, wherein the first length is greater than the second length.
  3. 3. The cap of claim 1, wherein the touch surface is a curved surface with an arc opening facing the key.
  4. 4. The cap of claim 1, wherein each of the first key legs includes a first stop portion extending in a direction perpendicular to the axis, the first stop portion being adapted to be snapped against an abutment surface of the key opposite the touch surface.
  5. 5. The cap of claim 1, wherein each of the second key legs includes a second stop portion extending in a direction perpendicular to the axis, the second stop portion being adapted to be snapped against an abutment surface of the key opposite the touch surface.
  6. 6. A key device, comprising: A carrier having a keyhole; a switch arranged on the carrier and comprising a body, a key movably arranged on the body along an axis direction and facing the key hole, and A film panel capable of being pressed and covered on the carrier; The key device is characterized by further comprising: The cap of claim 1, detachably mounted between a key of the switch and the membrane panel.
  7. 7. The key device of claim 6, wherein the carrier comprises a base wall having a tapered surface defining the key hole, the tapered surface having a diameter that tapers from one end of the tapered surface facing outward toward the other end facing inward.
  8. 8. The key device of claim 6, wherein the thin film panel comprises a convex surface opposite to the touch surface of the cap and capable of being pressed, and the convex surface covers the key hole.
  9. 9. The key device of claim 6, wherein the touch surface is a polished surface.
  10. 10. The key device of claim 6, wherein the first legs are equiangularly disposed and the second legs are equiangularly disposed.

Description

Key device and cap thereof Technical Field The present disclosure relates to a cap, and more particularly to a key device and a cap thereof for pressing. Background Referring to fig. 1, a conventional key device 9 includes a tact switch 91 for being touched and pressed, and a cap 92 mounted above the tact switch 91, and a user presses the tact switch 91 by pressing the cap 92. The cap 92 is provided to increase the contact area with the tact switch 91, and has four pins 921 with equal length for limiting the pressing stroke, so as to avoid the tact switch 91 from being damaged due to excessive pressing of the tact switch 91. However, the pressing strokes required by the users are different, and the different tact switches often have different pressing strokes, so if the pressing strokes are different, the caps 92 with other sizes need to be purchased or replaced, which is inconvenient to replace and increases the cost of additional consumables. Disclosure of Invention The invention aims to provide a key device capable of detaching key pins and improving pressing hand feeling and a cap thereof. The cap is suitable for being mounted on a switch, and the switch comprises a body and a key which is movably mounted on the body along an axis direction and can be touched and pressed. The cap comprises a mounting surface, a touch surface, at least two first pins and at least two second pins. The mounting surface is adapted to face the key. The touch surface is opposite to the mounting surface. The at least two first key feet extend from the mounting surface towards the body and are arranged at intervals in parallel. Each first key leg can be detachably clamped against the key, and has a first length along the axis direction. The at least two second key feet extend from the mounting surface towards the body and are arranged at intervals in parallel, and the second key feet are arranged at intervals with the first key feet. Each second key leg can be detachably clamped against the key, and has a second length along the axis direction. The second length is not equal to the first length. The cap of the invention, the first length is greater than the second length. According to the cap, the touch surface is a curved surface with an arc opening facing the key. According to the cap, each first key leg comprises the first stop part extending along the direction perpendicular to the axis, and the first stop parts are suitable for being blocked and abutted against the abutting surface of the key opposite to the touch surface. According to the cap, each second key leg comprises a second stop part extending along the direction perpendicular to the axis, and the second stop parts are suitable for being blocked and propped against the abutting surface of the key opposite to the touch surface. The key device comprises a carrier, a switch, a film panel and a cap. The carrier has keyholes. The switch is arranged on the carrier, comprises a body and a key which is movably arranged on the body along an axis direction and faces the key hole. The film panel can be pressed and covered on the carrier. The cap is detachably arranged between the key of the switch and the film panel. According to the key device disclosed by the invention, the carrier comprises the base wall, the base wall is provided with the conical surface for defining the key hole, and the aperture of the conical surface gradually decreases from one end of the opening outwards to the other end of the opening inwards. In the key device of the present invention, the thin film panel includes a convex surface opposite to the touch surface of the cap and capable of being pressed, and the convex surface covers the key hole. According to the key device, the touch control surface is a polished surface. In the key device, the first key legs are arranged at equal angles, and the second key legs are arranged at equal angles. The cap has the beneficial effects that different pressing strokes are obtained by pulling out the first key leg or pulling out the second key leg, so that the cost of replacing the cap is saved, and the pressing hand feeling of a user is further improved. Drawings Other features and advantages of the invention will be apparent from the following description of the embodiments with reference to the accompanying drawings, in which: FIG. 1 is a side view illustrating a prior art key device; FIG. 2 is a partial cross-sectional view illustrating an embodiment of a key switch of the present invention; FIG. 3 is a fragmentary, exploded perspective view and illustrates the cap of the embodiment shown mounted to a switch; FIG. 4 is a perspective view of the cap in the illustrated embodiment; FIG. 5 is a partial cross-sectional view of the cap of the embodiment with two first pins removed, and FIG. 6 is a partial cross-sectional view similar to FIG. 5 and illustrates the cap of the embodiment being pressed by a finger with the web of the finger pressing down from the tap