초록 ▼

Apparatus and method for forming a clinched joint between at least two panels with a rivet or slug by driving the rivet or slug into the at least two panels thereby outwardly deforming at least the inner end of the slug or rivet. Rings or components forming parts of the joint can be secured to the p

Apparatus and method for forming a clinched joint between at least two panels with a rivet or slug by driving the rivet or slug into the at least two panels thereby outwardly deforming at least the inner end of the slug or rivet. Rings or components forming parts of the joint can be secured to the panels wherein the rings or components are acting as the dies for forming the joint.

대표청구항 ▼

[ We claim:] [1.] A panel clinching method for clinching together at least two panels, utilizing a rivet including a shank having an inner end, a punch, and a sleeve external of the punch, the method comprising the steps of:supporting the panels on a supporting die formed with an opening to receive

[ We claim:] [1.] A panel clinching method for clinching together at least two panels, utilizing a rivet including a shank having an inner end, a punch, and a sleeve external of the punch, the method comprising the steps of:supporting the panels on a supporting die formed with an opening to receive the panels when they are deformed;positioning the rivet over the panels in the area to be clinched, with the sleeve surrounding the punch;advancing the punch and the sleeve downwardly to deform the panels into the die opening and form the clinched joint; andthereafter advancing the sleeve independently of the punch to cause the inner end of the shank of the rivet to be outwardly deformed, consequently deforming the panels, the deformation of the inner end of the shank of the rivet being caused solely by the independent advancement of the sleeve.