US 6,191,373 B1Granted

Dial programming switch

OwnerSheng-Hsin Liaoinventor

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Abstract

A dial programming switch comprises, especially, a switch structure which can be connected to the bank pin connector, comprises a seat, an upper cover, a plurality of push buttons and terminal. The seat spaced with a plurality of receiving grooves, each groove is connected with two terminal receiving holes at the lower side thereof. The upper cover is spaced with a plurality of holes with respect to the receiving grooves on the seat, the upper cover covering on the top of the seat. A plurality of push buttons each having a push button seat. The top of the push button seat is installed with a protrusion which protrudes from the holes of the upper cover. The bottom of the push button seat has a convex pushing portion. The push buttons are matched with the push button seat on the receiving grooves of the seat. A plurality of terminal sets each including a first terminal and a second terminal. The first terminal and second terminal are fixed to the terminal receiving hole of the seat. Each of the first terminal and second terminal extending with two clamping portions. The upper ends of the first terminal and second terminal each extending with a contact portion. The contact portion of the first terminal is formed as a convex portion; and the contact portions of the first terminal and the second terminal are installed on the receiving grooves of the seat; the contact portion of the second terminal is formed below the contact portion of the first terminal. The pushing portion of the push button ejecting against the contacting portion of the first terminal. Therefore, an easily assembled and low manufacturing cost dial programming switch is formed by aforesaid structure.

A dial programming switch comprising:

a switch seat having a plurality of longitudinally spaced receiving grooves, each of the plurality of receiving grooves being in open communication with two laterally spaced terminal receiving holes at a lower side thereof;
an upper cover having a plurality of longitudinally spaced holes disposed in respective aligned relationship with the plurality of receiving grooves in the switch seat, the upper cover being positioned on the switch seat to cover a top portion of the switch seat;
a plurality of push buttons each having a push button seat slidably disposed in a respective one of the plurality of receiving grooves, a top of each push button seat having a protrusion which protrudes from a respective one of the plurality of holes of the upper cover, a bottom of each push button seat having a convex pushing portion formed thereon;
and,
a plurality of terminal sets each including a first terminal and a second terminal, the first and second terminals of each of the plurality of terminal sets being fixed within a respective pair of the laterally spaced terminal receiving holes of the switch seat, each of the first terminals and second terminals having a lower portion with a U-shaped cross-sectional contour and being formed with two cambered clamping portions for engaging a respective pin of a connector, each of the second terminals having a contact portion formed on an upper end thereof and disposed in a respective one of the receiving grooves, each of the first terminals being formed with a laterally extending contact portion disposed in a respective one of the receiving grooves, each laterally extending contact portion having a distal end positioned above a contact portion of a corresponding second terminal and having an intermediately disposed convex portion, the pushing portion of each of the push buttons contacting a respective convex portion of a corresponding first terminal contact portion to displace the distal end thereof into contact with said contact portion of a corresponding second terminal responsive to a sliding displacement of a corresponding push button.

2 more elements

Abstract

Claims1