BACKGROUND
1. Technical Field
The present disclosure relates to push buttons, and particularly to a push button for a computer keyboard.
2. Description of Related Art
A push button on a computer keyboard may have at least the following five components including a cap, a base, a circuit board and at least two connecting member. The push button with such a structure is complex and the manufacturing cost may be high.
Therefore, there is room for improvement within the art.
BRIEF DESCRIPTION OF THE DRAWINGS
Many aspects of the embodiments can be better understood with reference to the drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
FIG. 1 is an exploded, isometric view of an embodiment of a push button.
FIG. 2 is an isometric view of a cap of the push button of FIG. 1.
FIG. 3 is an assembled view of a base and a connecting member of the push button of FIG. 1.
FIG. 4 is an assembled view of the push button of FIG. 1.
FIG. 5 is a cross-sectional view of the push button of FIG. 4, taken along the line V-V.
FIG. 6 is a cross-sectional view of the push button of FIG. 4, taken along the line VI-VI.
FIG. 7 is a cross-sectional view of the push button of FIG. 4, taken along the line VII-VII.
DETAILED DESCRIPTION
The disclosure is illustrated by way of example and not by way of limitation in the figures of the accompanying drawings in which like references indicate similar elements. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean at least one.
Referring to FIG. 1, a push button or key in accordance with an embodiment comprises a cap 10, a base 30 and a connecting member 50.
Referring to FIG. 1, the cap 10 comprises a cover 11. In one embodiment, the cover 11 is substantially rectangular. Four posts 12 extend from the cover 11. In one embodiment, the four posts 12 are arranged at four corners of the cover 11; each of the four positioning portions 121 is substantially columnar and perpendicular to the cover 11. Four stopper portions 13 are located on the cover 11. The four stopper portions 13 and the four posts 12 are both on the underside of the cover 11. The four stopper portions 13 substantially have the same configuration. Each of the four stopper portions 13 comprises a first limiting portion 131 extending from the cover 11, a second limiting portion 132 extending from the cover 11, and a blocking portion 133 connecting the first limiting portion 131 and the second limiting portion 132. The first limiting portion 131, the second limiting portion 132 and the blocking portion 133 together define a receiving hole 134. In one embodiment, the first limiting portion 131 is substantially parallel to the second limiting portion 132, the first limiting portion 131 is substantially perpendicular to the cover 11, and the blocking portion 133 is substantially parallel with the cover 11. The stopper portions 13 comprise a first stopper portion 135, a second stopper portion 136, a third stopper portion 137 and a fourth stopper portion 138. In one embodiment, a first line connecting the first stopper portion 135 and the second stopper portion 136 is substantially perpendicular to a second line connecting the third stopper portion 137 and the fourth stopper portion 138.
Referring to FIG. 1, the base 30 includes a supporting board 31. In one embodiment, the supporting board 31 is substantially rectangular. Four installation portions 32 are located on the supporting board 31. In one embodiment, the four installation portions 32 are arranged at four corner of the supporting board 31. Each of the four installation portions 32 defines an installation hole 321. In one embodiment, each of the four installation portions 32 is substantially perpendicular to the supporting board 31. Four hooks 33 are located on the supporting board 31. The four hooks 33 have the same configurations. Each of the four hooks 33 comprises a positioning portion 331 extending from the supporting board 31, and a latching portion 332 extending from the positioning portion 331. In one embodiment, the positioning portion 331 is substantially perpendicular to the supporting board 31, and the positioning portion 331 is substantially perpendicular to the latching portion 332. The four hooks 33 comprise a first hook 333, a second hook 334, a third hook 335 and a fourth hook 336. An extension direction of the latching portion 332 of the first hook 333 is opposite to an extension direction of the latching portion 332 of the second hook 334. An extension direction of the latching portion 332 of the third hook 335 is opposite to an extension direction of the latching portion 332 of the fourth hook 336. In one embodiment, a third line connecting the first hook 333 and the second hook 334 is substantially perpendicular to a fourth line connecting the third hook 335 and the fourth hook 336. Four openings 35 are defined in the supporting board 31. The connecting portion 331 of each of the four hooks 33 extends from an edge of each of the four openings 35.
Referring to FIG. 1, the connecting member 50 comprises a circuit board 51 and a resilient part 53 located on the circuit board 51. The resilient part 53 comprises a supporting portion 531, a connecting portion 533 extending from the supporting portion 531, and an abutting portion 535 extending from the connecting portion 533. In one embodiment, a cross-sectional area of the supporting portion 531 is greater than that of the connecting portion 533 and the abutting portion 535, and a cross-sectional area of the connecting portion 533 is greater than that of the abutting portion 535. Four extending portions 511 extend from the circuit board 51. In one embodiment, the circuit board 51 resembles a cross.
Referring to FIGS. 3-7, in assembly, the connecting member 50 is placed on the base 30, and each of the four extending portions 511 is engaged between adjacent two of the four hooks 33 to prevent the connecting member 50 from moving relative to the base 30. The cover 11 of the cap 10 is aligned with the base 30, and each of the four posts 12 is engaged into the installation hole 321 of each of the four installation portions 32. The latching portion 332 of each of the four hooks 33 is engaged into the receiving hole 134 to keep the cap 10 captive on the base 30. The cover 11 abuts the resilient part 53.
In use, the cover 11 of the cap 10 is pressed to elastically deform the resilient part 53, and the resilient part 53 is moved towards the supporting board 31 until the cap 10 makes contact with the circuit board 51. The circuit board 51 can send a signal, and the cap 10 is in a first position. When the cover 11 is released, the resilient part 53 repulses the cap 10 to an original position.
Although numerous characteristics and advantages have been set forth in the foregoing description of embodiments, together with details of the structures and functions of the embodiments, the disclosure is illustrative only and changes may be made in detail, especially in the matters of shape, size, and arrangement of parts within the principles of the disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Patent Application
20120318651
