Method for forming push rod for switch
AssigneeToyodenso Kabushiki Kaisha
InventorKeiji Iwata
Life of this patent
Estimating the term…
Abstract
A band-like raw material which becomes a contact plate is supplied to a position between an upper mold and a lower mold as these molds are closed, a convex part for the contact with the lower mold is engaged with a concave part for contact with the upper mold, by which, simultaneously punching out the contact part onto a part of the band-like raw material, the band-like raw material is cut to a predetermined length between edge parts to form the contact plate. At this time, a tip of a press pin on which the concave part is formed is brought into direct contact with a central part of the band-like raw material. A resin is injected into the mold cavities to form a push rod integrally with the contact plate, and the central part of the contact plate is deformed in the concave part to provide a stopgap.
Claims7
A method for forming a push rod for a switch, the method comprising the steps of:
- unreeling a band-like raw material to obtain a predetermined length of the band-like raw material;
- positioning the band-like raw material between two opposing mold faces;
- closing each of the opposing mold faces to make contact with the band-like material, wherein the closing of the opposing mold faces cuts the band-like raw material at the predetermined length and forms a contact part for the push rod thereon;
- injecting a resin into molds of the two opposing mold faces to form the push rod integrated with the cut band-like material,
- forming the band-like material with bent ends on respective ends thereof;
- and
- bending the push rod integrated with the cut band-like material in a V-shape form.
Dependencies are inferred from the claim text.